You are at : Search > Articles Search Results

Articles Search Results

466 Articles and 28 related Products found for DVRs

EverFocus's great leap forward: eZ Hopper

EverFocus's great leap forward: eZ Hopper

Editor / Provider: Sponsored by EverFocus | Updated: 7/7/2014 | Article type: Hot Topics

EverFocus recently introduced an innovative function, eZ Hopper, for new series of DVRs/NVRs, allowing users to control up to 16 connected DVRs / NVRs in the same LAN network with just one single mouse.

This breakthrough feature will bring great benefits to the traditional small and medium-sized surveillance system. For traditional DVR/NVR users who want to expand the surveillance system, a costly Central Monitoring Software (CMS) and the time-consuming training can be a great burden. However, adopting the CMS solution is no longer the only way to scale up, EverFocus' newly developed function, eZ Hopper, is going to help you solve this problem.

The eZ Hopper is designed and developed upon the current DVR/NVR codebase, users do not need to learn any other complex configurations in order to manage the whole surveillance system, neither spend great setup cost and time. You just need to set up one DVR or NVR to be the Main Server, and the rest to be the Sub Servers. Simply connect a mouse to the Main Server, and then you will be able to move its cursor across all the connected monitors of the Main and Sub Servers and control their OSD menus respectively.

For the customers who currently are EverFocus' DVR/NVR users, they can simply upgrade to the new firmware and enjoy this powerful and flexible function. For the customers who would like to have a traditional small and medium-sized surveillance system but withdraw from using the CMS because of a considerable expanse and complicated operations, EverFocus' DVR/NVR coupled with the eZ Hopper function will definitely be more applicable and appealing.

How much does cost reduction really cost you?

How much does cost reduction really cost you?

Editor / Provider: Alf Chang, a&s Consultant | Updated: 7/2/2014 | Article type: Hot Topics

Production cost and the sophistication of security equipment are directly related; therefore, the more the manufacturers try to lower the cost of raw materials used in circuit designs, the more performance problems arise. There are two areas where these measures are commonly observed: circuit materials and designs, and peripheral equipment. This article delves into problems with material cost reduction for circuit materials and designs.

Some dishonest manufacturers simply claim that they choose different materials to optimize the interoperability of different components. However, the ugly truth is that it is done to “lower” the total production cost. Material substitutions can occur in all components, from resistors and chips to single or layered circuit boards, wiring connectors, relay designs, voltage stabilizers, and many more. Likewise, the external casing material, paint selection, fans and jacks used are also possible places to make alterations. But as mentioned above, these alterations are done to lower costs in order to boost competitiveness, despite the serious impact it has on product performance.

THE PROBLEMS COMING FROM MATERIAL SELECTION
Some problems surface quickly, while others only emerge due to the influences of certain environmental or operational factors. Nevertheless, any problem is a headache for users and integrators. Below are some common problems resulting from production cost reductions.

Lenses
For lenses, cost reductions usually happen with the replacement of the metal molding components with plastic materials. As a result, two problems arise:

A. The lens may or may not be tightly sealed with the rest of the camera due to its elasticity. Plastic molds may lose elasticity, shrink, curve in, or curl up with time, or even worse, change shape as temperatures change. This is almost impossible to avoid with plastic, which affects the accuracy of focal alignment.

B. In addition, without a piece of metal that serves as adequate grounding, external electromagnetic signals can easily interfere with the auto-iris lens and damage the signal output, leaving interference lines on images.

Cameras
The makeup of a camera involves complex circuit and structural designs, including optics, electric wirings, mechanical structures, network modules, and many more. Hence, cost reduction measures to substitute these components may create the following problems:

A. Traditionally, security cameras use a sophisticated locking screw ring to adjust the back focus through rotation. To cut down costs, some manufacturers use a metal strip or loosen/tighten the screws to stabilize the back focus. These substitutions do save on production costs, but over time cause cameras to easily become “out of focus” due to vibrations, requiring further manual adjustment by the installer.

B. To save on costs related to circuit boards, some manufacturers combine the imaging sensor and the DSP/ISP into a single double-layered and double-sided board. Because two individual boards have been shrunk down into one, three problems may occur:

1. Crowded soldering on a circuit board could result in solder skipping or false soldering and could even lead to a short circuit.

2. The simplified board design allows IP cameras to become smaller as a whole; however, as the size gets smaller, the heat dissipation mechanism can be compromised.

3. The overcrowding of the pieces of components on the circuit board makes it difficult to maintain or repair. Therefore, instead of repairing a broken circuit board, the manufacturer would just replace it with a new one. It is a faster solution, but it can take a great toll on installers' maintenance service.

C. Unless the camera uses power over Ethernet (PoE), to lower the production cost, some manufacturers may simply change its AC/DC power supply to switching mode power supply (SMPS) and simplify the interior power module and voltage stabilizer at the same time. Three problems could surface as a result:

1. Voltage and current flow could be very unstable and fluctuate wildly, thus overheating and damaging the camera.

2. When the external power supply becomes too heavy, the surge protection device (SPD) can be easily penetrated; cameras designed with the substitution or elimination of SPDs or lightning arresters are at greater risk of such damage.

3. In case of lightning strikes, the SMPS could become so sensitive that it would pick up the lightning-induced current and cause damage to the circuit board, which may be too vulnerable to handle strong currents.

D. When downgrading electronic components, electrical connections and transmissions in the interior of a camera can be problematic, leading to impedance mismatching to 75Ω. As a consequence, the images shown can be overlapping, too bright, and full of jittery OSD or noise lines.

E. Some manufacturers may eliminate the output of video (CVBS) signals or switch the BNC connector to the cheaper RCA jack, even in some network cameras without automatic focus. It may cause a short circuit or loose connection of the BNC connector. Because there is no CVBS output in the camera, installers may spend extra time adjusting the camera focus.

F. To substitute the coding component in IP cameras, there are two kinds of common selections: application-specific integrated circuit (ASIC) and field programmable gate array (FPGA). ASIC is advantageous in terms of achieving low power consumption, but it still has some shortcomings. Therefore, the cheaper FPGA chip is also favorable as it can contribute to a shorter product development period. But FPGA can take up high power consumption, as much as a 30mA current — that's almost 1 or 2 scales higher than the common power consumption level.

G. For PTZ cameras, it is common to see the gear wheel replaced with cheaper chains. As a result, both the horizontal and vertical tilting becomes less smooth and the chains may easily break or fall out of place. Furthermore, when the cradle head stops moving, the chains can exert a kickback force that could shift the camera's pre-determined angles.

H. Another component on a PTZ camera that is easily substituted is the capacitor. A lower-grade capacitor can cause inaccurate cradle head movements and can burn up due to inadequate rotations.

MOTHERBOARDS OF DVRS/NVRS
A. DVR/NVR manufacturers usually utilize development boards and kits already on the market to save development and design costs of DVR motherboards. However, this could easily jeopardize a DVR/ NVR's stability and product longevity because of defective firmware and the materials used in the development boards, giving rise to potential risks and faulty performances.

B. To reduce cost, some circuit boards would eliminate the CPU cooling fan, which causes the CPU to perform at a compromised level when the server is overheating. Images yielded would not be clear due to mosaic blurriness.

C. Transmission wires can be minimized by simplifying the material of jumper wires. However, this can cause impedance mismatching and the interference of thousands of vertical lines on the monitors.

D. DVR/NVR transmission connectors, which have adopted substitute materials, could cause interference, too. The communications between the box, decoders, or control boards could be compromised.

E. If the backend server of a DVR/NVR is not equipped with signal blocking materials, interference signals may show up on the display, including diagonal lines, jitters, power supply fluctuations, etc. The interference may not pose a big problem, but badly distorted images resulting from the interference would not be useful to anyone.

F. If the DSP components were minimized, then the signals may not be magnified to the desired degree, rendering low-resolution images that may compromise details such as color, saturation, etc. These typically happen when signals greater than 3MHZ are lost.

G. The casing of the DVR/NVR may be downgraded with the elimination of a fan. Once again, the overheating issue would cause the machine to breakdown.

CONCLUSION
The above scenarios may be the result of common cost reduction measures by manufacturers for their own benefits or because they have no other choice but to. It is not an easy task for integrators and users to distinguish the interior design of equipment. Therefore, what can be and should be done when selecting a product is to evaluate the reactive measures that can solve the abovementioned problems.

Smart TVs open up new opportunities for video surveillance

Smart TVs open up new opportunities for video surveillance

Editor / Provider: William Pao, a&s International | Updated: 6/24/2014 | Article type: Hot Topics

In March, Iveda, which specializes in cloud-based video surveillance, announced a partnership deal with a Taiwan smart TV manufacturer to have its solution bundled with the manufacturer's TV sets. The partnership may very well become a new business model allowing users to operate video surveillance with more ease and convenience.

The smart TV manufacturer is unnamed but billed as a major player with the third largest market share in Taiwan, generating annual sales of 180,000 units. According to Iveda, its partner was looking for ways to generate more revenue and expand smart TV's functionality. Targeting security as a means to achieve those objectives, the partner became the first in the industry to include security features in smart TV sets. Under the deal, the TV manufacturer bundles into its products Iveda's plug-andplay security cameras and its software-asa- service cloud video hosting platform that comes with proprietary video streaming and storage compression technologies, allowing users to handle surveillance as a service for a monthly fee. Recurring incomes for security services represent a new and attractive proposition for TV manufacturers.

Smart TVs are next-generation television sets that are hooked directly to the Internet and in many ways transform the user experience. They enable users to do much more than just watch delivered contents; users can also download apps, stream music and videos, play interactive games, and enjoy other features that they normally would not be able to on their traditional TV sets.

“TV is no longer a passive appliance in people's homes. Cloud-based video surveillance is another application that makes smart TVs even smarter,” said David Ly, Chairman and CEO of Iveda. “It is a viable business model because TV manufacturers will continue to seek innovative products and services with true value to their customers, not just for entertainment, but other functionalities such as security.”

In Ly's words, managed video surveillance through smart TVs “will not only become a trend, it will become an end-user expectation” as people gain awareness that such capabilities exist today. “The deal validates that video security does not need to be as complicated as traditional methods make it seem,” he said. With the partnership, Iveda hopes to widen its reach to more users that it couldn't through traditional means. “The value for offering this type of solution is mass adoption of Iveda's cloud video surveillance services,” Ly noted. “The opportunity to reach more potential customers who normally would not call a security company for anything … is what Iveda has accomplished here with our partner. So yes, we certainly expect growth and traction.” As for deploying the service in other regions, Ly gave an emphatic yes, saying Iveda is looking for new partnerships in new markets.

Iveda Takes Video Surveillance to the Cloud
Iveda, founded in 2003 and headquartered in Mesa, U.S., specializes in cloud-based video surveillance, which represents another way of securing homes or other premises through video. With cloud-based video surveillance, also known as managed video as a service (MVaaS) or video surveillance as a service (VSaaS), the video is centrally hosted at a data center and can be accessed via a Web browser. Components that are needed in a traditional installation, such as DVRs, NVRs, and the related software, are no longer needed by users, who just need to log in and start to manage and control their videos via the PC or other Internet-connected devices. Iveda sees most of its customers in North America, although it has a subsidiary in Taiwan who has built ties with local clients in both public and private sectors.

Dahua HDCVI achieved surveillance upgrading of Shanghai 5-star hotels

Dahua HDCVI achieved surveillance upgrading of Shanghai 5-star hotels

Editor / Provider: Dahua | Updated: 6/16/2014 | Article type: Security 50

Dahua Technology, the China-based manufacturer and supplier of video surveillance products provided in-house HDCVI solution to 5-star hotels in Shanghai, successfully securing the hotels and guests during the fourth Conference on Interaction and Confidence-Building Measures (CICA). 

CICA Shanghai was held between 20th to 21st of May; the conference played a significant role in security industry cooperation throughout Asia. Xi Jinping, President of People's Republic of China also attended and presided over the summit. These hotels had played host to 46 national and organization leaders in Asia during the CICA.

Seeing the importance of CICA, Shanghai municipal government spared no efforts to make sure all participants secured. Among the must-do list was to level up video surveillance system. More than 50 reception hotels had been required to upgrade surveillance system, shifting from standard to high-definition video quality . However, the biggest challenge came from the pressure with the time frame, and a big question to all was --how to make sure the image quality and product replacement would not compromise the daily reception and security concern of these five-star hotels.

Under such circumstance, and given the fact that most of the hotels were using analog systems, it came to a vital decision to adopt Dahua HDCVI, as Dahua HDCVI allows easy upgrade without changing the existing cabling but   still provides long-distance and non-latent image quality. Most of all, the whole upgrading work took merely around 10 days; only cameras, DVRs along with fiber optical transceivers were replaced by HDCVI ones while cabling were unchanged.

Besides, with aesthetic requirement for the hotels, HDCVI offers wide range of housings and its speed domes and box cameras perfectly coexist with the decor in major areas such as lobby, reception, entrance and dining rooms.

“This project demonstrates all the benefits of HDCVI and has proved applicable and workable,” said Tim Shen, Overseas Marketing Director at Dahua Technology. “Within only 10 days, the whole video surveillance system has been upgraded to high definition which is not likely happened to IP solution. What HDCVI has been offered to the industry is another HD solution and this is highly gratified by our customers while cabling, cost and IP hassles are the concerned issues.”

EverFocus unveils 16CH universal DVR for HD-SDI and analog video inputs

EverFocus unveils 16CH universal DVR for HD-SDI and analog video inputs

Editor / Provider: Sponsored by EverFocus | Updated: 6/16/2014 | Article type: Hot Topics

In the security market, cost is the major concern when it comes to transition from analog to HD. As the HD-SDI cost has dramatically decreased to an acceptable price-level, demand of the HD-SDI, on the other hand, has been increasing and reflecting the market boom. Regarding the ease of installation and outstanding image clarity, HD-SDI technology has absolutely been widely accepted by the market. Owing to this, EverFocus has never given up hope on the HD-SDI market; on the contrary, gearing up for further development and outlining market strategies for the HD-SDI products.

EverFocus UHDR16, a Linux-embedded universal DVR, comes with 16-channel HD-SDI and analog video inputs. This product supports video signals ranging from D1, 960H, 720P to 1080P in one single DVR and also features triple streams for live view, playback and recording.

The UHDR16 supports recording 480 (NTSP) / 400 (PAL) frames per second at 1080P, and can play back 16 channels of HD-SDI recordings simultaneously. The model also supports RS-485 serial interface, 2 USB interfaces and 1 RJ45 (10/100/1000) Base-T Ethernet interface. Other than that, the UHDR16 can be expanded up to 7 SATA devices (6 SATA HDDs and 1 eSATA), ensuring large capacity of the HD-SDI video recordings.

According to Aska Liu, Deputy Project Manager of EverFocus, “since EverFocus has already provided a comprehensive product lineup, including IP, HD-SDI and analog hardware devices, we also look into universal devices for mutual-beneficial purpose. The UHDR16 can take all signals – no matter it is HD-SDI, 960H, or D1.”

Moreover, EverFocus provides mobile apps, allowing users to view the HD-SDI camera streams via their mobile devices (iOS or Android platforms). The ease of high-quality and high-definition video is the most important piece. Users can take the HD-SDI video and record it in 1080P, and watch the HD-SDI video remotely or locally – EverFocus makes it easy and cost-effective. Everyone can benefit from this beautiful resolution in HD-SDI. EverFocus expects a substantial portion of our revenues to be attributed to HD-SDI going forward.

Since EverFocus has made the acceptable HD-SDI products to the market, applications of the HD-SDI solutions is no longer exclusive to the high-end markets, but can be widely applied in different sectors. In the early 2014, EverFocus built up the HD-SDI systems, including 20 DVRs (EPHD04+) and 50 outdoor IR dome cameras (EHH5101) on the NEXCO-West (West Nippon Expressway Company) highway toll booths located in Hiroshima, Yamaguchi, Japan. According to the customer, the toll booths require a system that is reliable and can produce clear images both on the staff or the POS machine. Moreover, cameras with anti-raining/snowing and small-in-size features are considered as the key considerations in this case. Therefore, they chose EverFocus' HD-SDI DVR and outdoor IR dome camera.

At present, HD-SDI product lineup that EverFocus offers includes HD-SDI DVRs up to 8-channel, and HD-SDI cameras with variable types, including mini metal, bullet, dome, and box types. The outdoor HD-SDI cameras are also IP66-rated for weather resistance. Furthermore, EverFocus also provide HD-SDI accessories, including HD-SDI to HDMI converter, HD-SDI to fiber transmitter/receiver and HD-SDI repeater. The UHDR16 universal DVR will be soon released to the market in June, 2014. With the announcement of the UHDR16 universal DVR, users can benefit from its low latency, best-live-view HD-SDI signals over hundreds of meters of coaxial or Cat5e/Cat6 cables and easy installation with an affordable price.

EverFocus is committed to delivering powerful security solutions to the customers worldwide. Not just manufacturing reliable products to the market, EverFocus has been developing the enterprise-level central management system, Genie-XMS, which can support any IP-based devices and of course, all EverFocus' products.

The Genie-XMS is designed with an open and flexible architecture that is able to offer large-scale integration scalability. This surveillance management system is able to connect with any IP-based devices or systems including DVRs, access control, and LPR systems. Web pages or messages can also be displayed on the live view screen. The live view layout can be arranged in any form the end users desired.

With the full range of product lineup, plus the hardware manufacturing and software integration, there will be no gap among the IP, HD-SDI and Analog systems anymore. EverFocus has always been holding one concept to the security market, to focus on excellence, reliability and integration in our products.

TVT launches TVI, ready for the huge potential in Asia markets

TVT launches TVI, ready for the huge potential in Asia markets

Editor / Provider: a&s Asia | Updated: 6/13/2014 | Article type: Hot Topics

TVT Digital Technology, having accumulated 15 years in R&D of video surveillance technologies, launched TVI, another new HD-over-coaxial solution on the market. The company claims that this one-of-a-kind technology has successfully solved the limitations of HD-SDI solutions, as well as offers an even more economical and easy-toinstall/ use solution. TVT is one of the very few companies able to provide two different types of HD-over-coaxial solutions and has also developed a complete IP surveillance product line. With 15-years experience in international business, TVT sees tremendous potential in Asia.

TVT Digital Technology, a leading Chinese video surveillance manufacturer, just launched a brand new HD-over-coaxial solution — TVI — in May, which is able to compete with other similar solutions on the market via an even more cost-efficient and easy-to-install method. The company is not new to the security industry; since 1999, the company has been focusing on developing video surveillance technologies. TVT is a technologydriven company, and its R&D investment accounts for almost 20 percent of their annual sales turnover. Now, the company has approximately 1,000 employees of which 30 percent work for R&D. To fulfill their customers' requirements in various market sectors, TVT concentrates on developing a complete product portfolio with IP, HD-SDI, and now TVI technologies. According to a report from IMS Research (an IHS company) in 2013, TVT was ranked number one in the world in terms of global shipment of HD-SDI products. With TVI, the new HD-over-coaxial solution, TVT is able to provide their customers different types of HD video surveillance products. According to Joe Qiu, Sales Director of TVT Digital Technology, TVT is one of the very fewcompanies that can offer such a wide range of video surveillance products. Currently, there are about 100 million coaxial cables being deployed in the world and each one of them is connected to an analog camera. In the next three to five years, they will all be replaced by HD cameras. However, a certain group of users, who have big concerns with the cost of re-cabling, installation, and extra network devices, will be more likely to select a more economical and easy-to-install solution to upgrade to HD, instead of adopting IP cameras directly. That is where HD-SDI and TVI really stand out. “The replacement market is huge. I don't think analog products will have any chances here since HD-SDI and TVI will quickly dominate this market by offering much more extra advantages,” said Qiu.

What is TVI?
TVI and HD-SDI both are HD-over-coaxial solutions. However, bottlenecks for HD-SDI still remain, such as transmission distance, storage, and total cost. “Fortunately, now, we've successfully developed the TVI solution, which is able to solve HD-SDI's previous problems by acquiring 90 percent of HD-SDI technology but conducting analog transmission via coaxial cable,” he said. Because TVI can convert the digital signals to analog ones, it extends the transmission distance, reduces the total cost, and takes less storage capacity. Its distance can reach from 300 to 500 meters via coaxial cables. Furthermore, TVI transmits CVBS 75ohm analog signals, with resolution in 1080P and 720P at 30 frames per second, which is hard to be achieved by other HD-over-coaxial solutions, according to Qiu. Users even can just change their old analog cameras and DVRs to TVI cameras and DVRs to get a brand new 1080p surveillance system, which doesn't require any other special knowledge or extra labor cost.
Many people might have some doubts before choosing a new technology, such as its future compatibility and availability. Qiu explained the overall benefits of using TVI to clarify these doubts in the following:
First, TVI comes from a US-based company that does not supply chips to a sole manufacturer, but eventually will also provide chipsets to other manufacturers all over the world. Customers, in the future, can freely choose their TVI suppliers due to the wide-range of supply chains for TVI on the market. Therefore, TVI is more likely to become an industry standard, not a proprietary technology/solution. As an open solution, TVI is a future-proof technology, which has high interoperability and compatibility with other video surveillance products. For example, TVI DVRs can be compatible with 720p and 1080p cameras from other brands simultaneously. These facts provide many advantages for TVT's customers, especially to reduce inventory. After all, TVI offers a very cost-efficient solution for customers, targeting the middle-to-low-end markets using coaxial cables. HD-SDI, instead, will concentrate onhigh-end markets.
TVT believes that Asia will be the first market to adopt this technology and followed by the rest of the world. In Asia, unstable bandwidth is still a headache for systems integrators to build up a reliable IP system. Meanwhile, many of them still lack sufficient IP knowledge. Both of these factors hinder the wide adoption of IP in Asia. As as result, Qiu believes around 50 percent of the installers in Asia will be more likely to find TVI easier to use. Because of the huge business potential of TVI, TVT aims to develop comprehensive TVI product portfolios. The company has already completed their TVI product line, which includes 4-,8-, and 16-channel DVRs and cameras, ranging from speed domes and box cameras, categorized by price range from high, middle, to entry-level ones, and by resolutions in 1080p and 720p.

TVT develops HD solutions of IP, HD-SDI and TVI
Because customers may have either new or retrofit projects, it is nearly impossible for them to abandon the existing analog systems or coaxial cables completely. Therefore, “as a total solution provider, we aim to provide our customers a variety of products/methods to migrate to full IP — a combination of IP, HD-SDI, and TVI products, which offer a more practical and cost effective solution,” Qiu emphasized. On another note, TVT has also established a smart home product center. Aiming to secure SOHOs, SMBs, and residential clients; the first product launch can be expected in the second half of this year.

TVT: professional OEM partner of global buyers
TVT really differs from other big names in China in that the company has focused on servicing global clients since the first day it was established. Right now, TVT has exported over 50 percent of their products to overseas markets. TVT has built strong manufacturing power through OEM, providing professional services and products to support its global clients. “Later this year, we will establish three new factories to start mass production of DVRs, cameras, and others. By which we can largely improve our lead time but increase our overall quality and fulfill our customers' requests in a timely manner. Plus, TVT's R&D team now is reorganized according to product lines, which, of course, makes the team much more market-oriented,” Qiu said. Recently, TVT has started to expand its market share in their domestic market, China, with its own brand. “Eventually, TVT will also promote our own brand in overseas markets, too,” he added.

Focusing on Asian markets
In recent years, TVT has been eyeing many business opportunities in Asia even though Asian markets are more price sensitive, compared to other markets. “TVT is able to educate and guide these Asian clients to select the proper solutions, with reasonable cost, at good timing since we have a complete range of products,” said Qiu. “More importantly, TVT finds ways to maintain quality and affordability. First, TVT will introduce some entry-level products to the Asian market. Second, we endeavor to make our products easy to install and use; therefore, we provide plug-&-play, POE NVRs, and cloud service. The TVI product line is also another example. Using TVI, installers won't meet too many difficulties because TVI works with the coaxial cables.” For TVT, Asia is quite an important market. Therefore, the company has started to prepare for its first overseas branch office in Asia. Qiu continued, the second step should be deployment of TVT's sales teams, with the ultimate goal to provide localized services and marketing.

TVT possesses competitive business propositions
From customers' perspective, choosing the ideal manufacturer usually requires meeting several criteria. First, they will evaluate how fast the manufacturer can keep up with the current technologies and the variety of products they can offer. Second, they will focus on the ratio of their products' cost versus performance. Without a doubt, Chinese manufacturers, especially, have the advantage here, compared with companies from other regions. “I would say, TVT has met all these criteria. Beyond that, the company really stands out from others since it is always taking the right approach at the right time by offering the most pertinent solutions for the market,” concluded Qiu.

TVT: Global number one HD-SDI Supplier
According to a report by IMS Research (an IHS company) in 2013, TVT was ranked number one in the world in terms of global shipment of HD-SDI products. Traditional video surveillance installers and systems integrators from Europe and the U.S. are the major clients of HD-SDI. Compared to TVI, HD-SDI targets high-end markets using coaxial cables. These clients need HD high resolution, but are restricted by their budget and previous experience, product features, and certain institutional policies in video surveillance performance, such as minimum to no latency, and high confidentiality.

 

4K trend pushing the launch of H.265

4K trend pushing the launch of H.265

Editor / Provider: Editorial Dept. | Updated: 6/9/2014 | Article type: Hot Topics

H.265, which produces videos of the same quality as H.264 yet taking up only half the bandwidth, is poised to replace its predecessor as the mainstream video coding standard. Full-fledge deployment in the surveillance industry is inevitable, even though major challenges, such as complexity of coding and an imbalance between cost and functionality, still need to be overcome.

H.265 is the next-generation video compression format that claims to be twice as efficient as H.264, the current industry standard. In Q4 2013, the first milestone in a continuous research effort to apply this new compression technology in broadcast was achieved. However, for the security and surveillance industry, H.265 is still a myth and not yet implemented on a wide scale.

Since HD is the ultimate trend, H.265 will be crucial in getting 4K “Ultra HD” contents to our televisions, PCs and tablets over the next few years. Achieving those objectives depends on the core components of the H.265 codec that are being developed and will probably launch in 2014.

H.265 is a video compression format that delivers crisper network video contents and requires 50% less bandwidth for the same image quality as H.264, making it easier to download or stream HD video. That said, over the next few years we can view Full HD contents online with our mobile devices such as cell phones and tablets.

H.265 supports 4K (4096×2160) and 8K (8192×4320) Ultra HD (UHD) contents as well. This makes H.265 an ideal technology for delivering high-quality IP videos and creates the possibility that H.265-supported IP cameras, DVRs, and NVRs will roll out over the next few months.

The H.264 standard has dominated the market for the past five years. Now, with H.265 set to become the mainstream, we must understand what the advantages of H.265 and their best-fit applications are. The following article explains the H.265 codec and its future trends.

WHAT IS H.265?
H.265 is a video compression standard, a successor to H.264, that was jointly developed by the ITU-T Video Coding Experts Group (VCEG) and related groups.

On August 22, 2012, Ericsson announced the world's first H.265 encoder, the Ericsson SVP 5500. In only six months, H.265 (also known as High Efficiency Video Coding, HEVC) was approved as the official successor to H.264 as an ITU-T standard.

H.265 is said to double the data compression ratio compared to H.264 at the same level of video quality. It can alternatively be used to provide substantially improved video quality at the same bit rate. It can support 8K UHD and resolutions up to 8192x4320.

H.265 was designed to significantly increase coding efficiency compared to H.264 – that is, to reduce bit rate requirements by half with comparable image quality. Depending on the application requirements, H.265 encoders can mitigate computational complexity; improve compression rate, robustness and error correction; and reduce encoding latency. While H.264 can transfer SD contents in 1Mbps, H.265 is able to transfer 720p (1280x720) and HD content in 1-2 Mbps.

Some leading IT pioneers like Qualcomm, Broadcom and Huawei have been showcasing related products enabled with H.265, which many believe is likely to replace H.264 as the global major compression standard.

WHY IS H.265 SUPERIORTHAN H.264?
H.265/HEVC video coding uses the same approach as H.264/AVC, including inter-/ intra-picture prediction, transform coding, quantization, deblocking filter, and entropy coding. But H.265/HEVC comprises coding units (CUs), predict units (PUs) and transform units (TUs).

Compared to H.264/AV, H.265/HEVC provides different methods to reduce the compression rate. Each marcoblock in H.264/AVC is 16x16 pixels, while in H.265/ HEVC the marcoblock provides different options, from 8x8, 16x16 to 64x64 pixels. What H.265 does is analyzing video contents and breaking them down into CUs of different sizes. For example, it would take much smaller blocks (down to 4x4 pixels) to encode detailed areas, like a vehicle in a parking lot, and much bigger blocks to encode the background, which contains less video data.

H.265 employs 33 directional modes for intra-prediction, compared to the 8 directional modes for intra-prediction used by H.264. With the same image quality, H.265 delivers 39 to 44% less decoding bit streams than H.264. This result may vary with different quality assurance methods.

Peak signal-to-noise ratio (PSNR) and subjective assessment of video quality are standard ways to measure the coding efficiency of a video coding mechanism. In a subjective assessment of video quality, H.265 delivers the same or better coding efficiency than H.264 with bit streams reduced by 51 to 74%. This result is very important since subjective assessment of video quality is considered to be the most important way to measure a video coding standard, as humans perceive video quality subjectively.

Like H.264, which uses the Main, Baseline and Simple profiles, the first approved version of the HEVC/H.265 standard includes Main, Main 10, and Main Still Picture profiles.

The Main profile supports bit depth of 8 bits per sample, which allows for 256 shades per primary color, translating into a total of 16.8 million colors. The Main 10 profile supports bit depth of 10 bits per sample, which allows for 1024 shades per primary color or a total of 1.1 billion colors, making it ideal for UHDTV. They both use 4:2:0 chroma sampling.

HEVC also contains provisions for additional profiles. Future extensions that are being discussed for HEVC include increased bit depth, 4:2:2 and 4:4:4 chroma sampling, multiview video coding (MVC), and scalable video coding (SVC). On January 8, 2013, Broadcom announced in CES the BCM7445, which is an Ultra HD decoding chip capable of decoding HEVC of up to 4096x2160p at 60 fps. The BCM7445 is a 28-nm ARM-architecture chip capable of 21,000 Dhrystone MIPS with volume production estimated for the middle of 2014.

FUTURE TRENDS OF H.265 CODING
Security and surveillance vendors are more concerned about the time-tomarket of devices that support H.265/ HEVC coding. This will depend on many factors -- for example, how soon will graphics chips makers, such as AMD and NVIDIA, integrate H.265 into their products. The first generation of H.265 chipsets may be only suitable for initial video coding standards, and there are still many H.265 image processing functions, extensions, and multiview video coding that need to be enhanced.

In 2013 CPSE, Hisilicon and Grain Media did a demo on the initial results of their H.265 research. All of the invited visitors were impressed and agreed that H.265 had a huge potential. However, challenges still remain. These include H.265 coding complexity and an imbalance between cost and product features.

Many manufacturers in the security and surveillance industry hope that with the efforts of chipset and IC technology vendors, HEVC will quickly replace H.264 as the dominant IP surveillance coding technology. While most cable TV and digital TV broadcasters are still using the MPEG-2 standard, the good news is that some TV broadcasting companies have replaced MPEG-2 with H.265 standard for HDTV applications, as H.265 reduces bandwidth consumption by 70 to 80% and can support full HD 1080P TV broadcasting with existing bandwidth conditions. Compared to cable TV companies, satellite TV providers may adopt the H.265 standard earlier. The H.265 codec will be the ultimate solution for 4K and 8K options that can enable Ultra high definition television (UHDTV). But challenges on transmission, storage and playback still linger.

Right now, only few native 4K video contents are available, and manufacturers are just planning to launch 4K IP cameras in Q3 2014. The introduction of H.265 coding standard means that the theory is ready, but a unified method to transmit such ultra HD signals is not. Therefore, such development is quite crucial.

In addition, the storage of H.265 encoded videos would also be a problem. Even the Blu-ray Disc Association is working to find a solution to enable storage of 4K videos on Blu-ray discs. Theoretically, this should become possible with an extension of the H.264 format, but bit streams become an issue. Only discs with at least 100GB capacity will enable storage of Blu-ray 4K movies encoded with H.264. But where can you find 100GB re-writable discs? In other words, even though H.265 coding and chipset components are ready, it still lacks the storage and playback solutions that support 4K contents and that are compatible with the existing Blu-ray Disc standard. This is the major challenge for H.265 development.

Since H.265 is the future of television and video, will it become the mainstream for security and surveillance as well? Professional surveillance vendors are not sure either, since H.265 deployment in security and surveillance is not only subject to the challenges mentioned above but also dependent on its end-users.

There are project-based professional users and general consumers for surveillance applications. Professional users are those who conduct city surveillance, traffic monitoring and bank monitoring and who demand solutions that are more stable and reliable. Most of them already have existing technologies and therefore would be hesitant to adopt H.265, which requires a longer verification period.

On the other hand, SMB users and consumers such as home and shop users are faced with less installation cost and are therefore more likely to adopt the new technology. For this reason, H.265 could have its early success in SMB applications and gain acceptance in the consumer market.

With the wide adoption of IP surveillance, HD trends are everywhere. Yet at the same time, limitations of the H.264 standard have begun to emerge. 1080P video contents, for example, require 4 to 10Mbps bandwidth, creating huge cost pressure for service providers and SIs. Network bandwidth and storage equipment usually account for 40 to 50%of system investments in the surveillance ecosystem, and bandwidth cost and maturity of equipment technology are major issues facing operators offering Full HD.

If H.265/HEVC standard matures quickly, and its compression efficiency is improved by 50% over H.264, it can result in 20% investment savings, ensuring higher performance and lower network and system building cost in video surveillance.

CONCLUSION
H.265 has more superior features than H.264, so it's just a matter of time before H.265 standard and components are ready for market. We are cautiously optimistic about the future of the H.265/HEVC standard, as HD 1080P TV broadcasting and 4K video streaming with H.265 are already possible. There is even the possibility that mobile devices will be required to support H.265, and manufacturers will try their best to accommodate.

iCatch shines in security surveillance industry

iCatch shines in security surveillance industry

Editor / Provider: Sponsored by iCatch | Updated: 6/3/2014 | Article type: Hot Topics

iCatch — a promising company comes with global perspectives, firm determination, and ambition in international market penetration — is inarguably one of the leading providers in the security surveillance industry.

In this exclusive report, you are about to learn that iCatch's solid foundations is lying not only on product line development and superior technology, but also global channel marketing, strong cultural connection, and business cooperation with regional distributors.

‘In the future,' said Vanne Lin, the Executive Vice President at iCatch, ‘iCatch will enter global medical industry, we are able to provide security surveillance solutions along with many sought-after features such as global positioning system and emergency alarm, in order to offer end users much more user-friendly experience.'

iCatch expanded in 33 nations
iCatch has expanded in 33 nations with its own brand until 2013. In 2014, iCatch decided to build up stronger connection and closer cooperation with local distributors and partners. For that, iCatch can be seen in some major trade shows worldwide including Secutech in Taiwan, ISC West in the US, and IFSEC in the UK to name a few.

In 2014, iCatch will focus on promoting mobile surveillance solutions and Universal DVR, a series of recent-launched digital video recorders. In terms of demands in mobile surveillance, iCatch provides a very user-friendly system which allows the user to monitor through computer browsers and mobile devices. Instant alarm messages will be sent to user's mobile devices when events are triggered so that countermeasures can be conducted immediately.

iCatch's budget-friendly Universal DVR series are able to accommodate digital HD signals (1080P, 720P) and analog signals (960H, D1) in one single DVR, which provides great flexibility for upgrade. With existing coaxial cable infrastructure, the user is able to change some of the analog cameras with HD-SDI ones, or simply add new HD-SDI cameras at crucial areas to fulfill surveillance capabilities with ease.

In the mean time, iCatch is also developing cloud surveillance system. At this moment, basic features such as remote storage, playback, and backup are declared mature. iCatch promises that more efforts will be spent on this project to complete the features as well as product line.

Product core competence boosts global channels
Major surveillance system manufacturers are mostly from South Korea, China and Taiwan. South Korean manufactures possess superiority in software development and technology, rendering advantages in major tender cases, whereas Chinese manufacturers are largely benefited from lower manufacturing and R&D cost due to government subsidy and tax refund. Taiwanese manufacturers, therefore, often found themselves are far less competitive at this part. Nevertheless, Taiwanese providers are still well-known for outstanding international perspective, export marketing, professional knowledge, not to mention system stability and after-sales services.

Facing fierce competition in the global market, iCatch has built a competitive product line, offering customer higher device stability, outstanding after-sales service, and price only 10% higher than Chinese counterparts.

iCatch will target on medical and elders' nursing solutions as future product line development, with practical features such as global positioning system and emergency alarm. At this moment, iCatch has experienced plenty large-scale international projects planning in Germany and Ukraine, etc.

HD surveillance system will domain the market
‘HD surveillance system will domain the market. Users do not really care about jargons, like SDI, TVI or CVI,' said Lin. ‘What they do care about is high image quality that they can see on the monitor. And, in fact, our product performs better than our fellow competitors.' iCatch's DVR is able to output 30 frames per second at million pixels for 16 channels, which can hardly be outpaced.

On top of DVRs, iCatch also offers Intelligent Network solutions (IVR) coming with built-in switch. For users this means hassle-free setting and no external switch needed — truly a plug-and-play. Furthermore, iCatch's IVRs share similar GUI with DVRs with most of the manufacturers, so that the user can adopt it intuitively, saving up after-sales service efforts.

Global surveillance market will continue to grow stably for sure, commented by Lin. In terms of business strategy, Lin suggested that ‘Each entrepreneur must consider own core competence, product differentiation and global marketing strategy to root in the market. Strategic alliance with other companies can also be valuable approaches. As one of the leading security surveillance system manufacturer in Taiwan, iCatch will continue to invest in R&D. Besides user-friendly platforms, an even more budget-friendly price structure will also be announced. As for future plan, iCatch is going to enter medical related markets, creating even further brand value.'

 

Hardware takes a backseat to software

Hardware takes a backseat to software

Editor / Provider: Gary Tang, a&s SMAhome | Updated: 5/22/2014 | Article type: Hot Topics

The ultimate appeal of a smart home is the anticipation that one day we will have systems in our homes that have the intelligence to understand and predict our behavior, and adjust the environment to the users preferences, which it learns autonomously. This level of automation is currently impossible to do mechanically, making software the only viable option. Moreover, the days have long gone where a user has to fiddle with dozens of buttons to operate a system—in its place, we now have touch screens and tablets with adaptive and programmable user interfaces.

In 1982, Alan Kay, a computer pioneer, said in a talk: “People who are really serious about software should make their own hardware.” Some companies have found huge success in this approach, such as Apple. Microsoft is also moving in this direction with its Surface tablets and its acquisition of Nokia's mobile phone division.

However, it is easier said than done. “Hardware can mean so many things—processor, board, system plus accessories. To build an ecosystem, it can be very expensive and time-consuming, and it is certainly better to take a more evolutionary route, to bootstrap, leverage and to stand on the shoulders of giants,” said Wei-Chao Chen, co-founder of Skywatch. “Software improvements beget hardware changes, and vice versa. I think we are at the onset of smart home services, and software is the primary limiting factor where the battles would be carried out.”

Nick Evans, CEO of Tile, thinks it is worth it. In a talk at the 2014 International CES, Evan says: “It's very challenging to develop a product like [Tile], but at the end of the day, you have your teams working very closely together. If you can't do this mechanically, we'll figure out a way to do this in software; in software if that's going to be kind of clunky to set it up, we'll put a button on [the device]. We'll make the button very hard to see on the Tile, but it's actually still there.

“This is the direction everything's going: to not have everything so modular, to not throw stuff over the fence and have this integration. It's the only way you can really build fantastic, magical products that just work. It's definitely worth it at the end of the day,” Evans added.

Touch panel vs. Smartphone app
It was only a few years ago that integrators and end users needed a dedicated touch panel to control home automation systems. Apple's introduction of the iPad and the subsequent explosion of tablets has made it much more affordable to add a touch screen panel to a home automation system. They are also much more convenient due to their support for general purpose computing and multitasking capabilities.

However, users have also come to expect certain standards when it comes to user interfaces. In terms of user experience, a good user experience goes beyond UI design. It encompasses hardware functionality and pleasing aesthetics to allow users to take full advantage of their devices in a satisfactory way. While gimmicks and eye- catching designs may attract users at first, it is not enough to retain customers.

“Good UI/UX is important for customer retention, and to attract customer attention. Good UI/UX can also reduce RMA and customer support loading. In short, very important. I don't think manufacturers are getting them wrong, just that they are not evolving quickly enough,” Chen said. “The only way to nail down UI/UX issues, we think, is to go directly to the consumers. Crowdfunded startups seem to be doing fairly well in particular because the successful ones learn to present their products in a consumer-friendly way, an essential factor in order to achieve successful funding threshold.”

“In terms of interoperability, for end users, an open API is often not relevant as long as the whole solution works well together. This means either a system integrator or a solution provider needs to create a workable solution for the customers. We see that it has become increasingly difficult for system integrators to provide such solutions because of technical complexities and UX considerations,” Chen continued. “That is why we think MVaaS or companies that can facilitate and package these solutions as products have higher values going forward. My view is, if you are providing solutions, an open API is often not necessary. On the other hand, for component suppliers (such as camera vendors), open APIs are usually unavoidable.”

Reaching for the cloud
There are obvious benefits to hooking up appliances to the Internet. An air purifier can pull data from the internet to inform users of what to wear and if they should worry about certain pollutants. Utilities can monitor energy and water usage to operate more efficiently. Users can control their appliances from wherever they are. Device makers can push updates to offer users new features. Limitless possibilities arise when connecting a home appliance to a vast jungle of data and information and also to other users.

For example, home security cameras benefit greatly from the ubiquitous connectivity and smartphones of today. The problem with traditional security cameras, both CCTV and network cameras, is that local storage is easily tampered with if the intruder knows where to look. Whether images are stored in an SD card on the camera or a hidden NVR or NAS, the intruder has the opportunity to destroy evidence. There are many cases where security footage was not able to assist in solving the crime because the intruder had already removed or formatted the hard drive or SD card, as is often the case for inside jobs, said David Lim, CTO of Weltin Global.

Having off-site backups is best practice for any type of data, but that option may be too much trouble or too expensive for some users. That is why cloud-enabled home security products are so attractive. In terms of security, all images are stored safely in the cloud, so users do not have to worry about missing critical moments due to hardware failure or tampering. Users can also view live video via apps on PC or mobile devices.

The dropping prices of cloud computing platforms provided by the likes of Amazon, Google and Microsoft has made it much easier for camera makers to offer users the option to backup security footage to the cloud, Lim said. Weltin builds its cloud services on top of the infrastructure of IBM and Google, which removes a huge burden in terms of up-front investment, as well as security and reliability.

“I see more pros than cons by using IaaS services to deploy cloud video services. It allows us to go to many markets faster than building our own infrastructure, and is therefore more cost efficient for fragmented markets in particular,” Chen said. “It could be marginally more expensive at scale, but at that point there is no real trouble switching to IDC or co-located solutions. There is no differences in terms of data security between using IDCs and IaaS solutions.”

Connectivity raises security concerns
As the number of connect devices in the home increase, and as they replace “dumb” devices that play a critical role in home safety and security, the security of these devices has become a pressing issue. The Edward Snowden revelations significantly grew awareness of government spying and issues regarding privacy in the digital age, but the problems go much deeper. Criminals and other parties with malicious intent now have a much wider playground with the multitude of connected devices. This was not a big deal before now, but the number of devices and the role they play in a home has increased the threat level exponentially. And it is only going to get worse. “Users demand the functionality. Users increasingly want more control over their devices, so turning traditional hardware appliances into IoT ones becomes a market trend,” said Frank Tse, researcher at Nexusguard. “Users also demand fast response and live data, which requires adding internet connection and turn the device into an always-on Internet client.”

Proofpoint, a security solution provider, found earlier this year that cyber criminals were using household IoT devices— including home-networking routers, connected multi-media centers, televisions and at least one refrigerator—to launch attacks. Belkin's WeMo line of smart home products were revealed to have vulnerabilities that left 500,000 users at risk. In March, researchers found that more than 300,000 routers were compromised by malware that modified DNS settings. The recent Heartbleed bug that affects some versions of OpenSSL defeats encryption. Just this month, Sans Institute researchers infected video surveillance DVRs with Bitcoin- mining malware.

“Bot-nets are already a major security concern and the emergence of thingbots may make the situation much worse,” David Knight, General Manager of Proofpoint's Information Security division said in a statement. “Many of these devices are poorly protected at best and consumers have virtually no way to detect or fix infections when they do occur. Enterprises may find distributed attacks increasing as more and more of these devices come online and attackers find additional ways to exploit them.”

Networking appliances and other devices is an old concept, but has not been implemented on a massive scale until recent years. Since security is often not a priority in the product development process, manufacturers are content running older versions of software, which may have known vulnerabilities or have weak security.

Users, however, are also at fault. “The security of smart home devices has so far been based on trusting manufactures, but users are the weakest link in security.” He recommends users to at least change the default passwords, turn off features they don't need, and configure their home router's firewall to allow access from trusted sources only.

Asked if it is good enough to rely on the goodwill of manufacturers to make more secure devices, Tse's response was blunt: “Never.” Whether it is due to a lack of understanding the risks, a lack of resources to implement adequate security, or sheer laziness, device makers clearly need to step up their game. “Manufacturers are recommended to turn off web-enabled features by default for some types of devices, such as refrigerators and air conditioners. This will make users aware they are turning on one feature of that device and the risks it may entail,” Tse said. “Manufactures are also recommended to do data classification and implement necessary countermeasures, such as encrypting data and storing it on servers rather than locally.”

Usability is key
Generally, consumers choose products that have an advantage in price, design, and usability, in this order, Chen said. “Usability comes later, and as it is the viral factor, I think it is ultimately the most important factor. To this end, price needs to go down to a certain level before mass market adoption, but the cheapest products almost never win, unless they have become obvious commodities.” Consumers are very cost sensitive, but a good design turns the game around, he added.

Latest HD-over-coax solutions give new life to analog

Latest HD-over-coax solutions give new life to analog

Editor / Provider: Alf Chang,a&s Consultant | Updated: 5/21/2014 | Article type: Tech Corner

While IP-based video surveillance is becoming the dominant way of rendering high-quality video images, analog monitoring systems that transmit signals over good-ol' coaxial cables are not losing their grip, thanks to a series of newly-invented image enhancing HD-over-coax solutions.

Inevitable and unstoppable as the trend of IP surveillance may seem, shipments of analog video surveillance products still account for over 60 percent of the global market. In addition, the need to improve image quality while maintaining existing coaxial cable deployment is also strong. This has led the analog camp to come up with new ideas and solutions in terms of yielding better image quality. The latest HD-over-coax solutions include 960H, HD-SDI, ccHDtv, HD-MDI, HDCVI, and 800TV Lines (TVL) HD analog solutions. Among all solutions available, 800TVL HD analog solution is the most discussed and the most popular one in the analog arena. Chipset suppliers in Taiwan, China and Korea are all joining the fray, vying for a share in a market that is full of opportunities. In the following, we focus on the latest update of some particular solutions, which gained the limelight in 2014.

960H: SENSORS WITH EFFIO DSPS PRODUCE IMAGE QUALITY CLOSE TO HD
Sony has combined its Enhanced Features and Fine Image Processor, Effio DSP, with traditional CCD image sensors and boosting the analog image resolution Solutions to 960H. Images produced by the solution are not only high in definition, but also high in S/N ratio and color rendition.

Effio DSPs are compatible with 480K/570K CCD image sensors of both NTSC/PAL systems. When used in conjunction with WDR CCD sensors, video cameras using the solution can produce crisper and sharper images in the setting of back light and extreme light, compared to traditional analog cameras.

The combination of Effio DSPs and CCD sensors can produce over 650TVL of horizontal resolution, even up to 700TVL sometimes. Video images created by the solution excel in color saturation and in brightness, compared with traditional analog cameras. The built-in 2D and 3D digital noise reduction of Effio DSP decreases dynamic noises of images in low light environments and increases image clarity. The solution also enhances image clarity both in the dark and when objects are moving.

Without having to alter existing deployments of cables, the solution is regarded as the most viable way of reaching high-resolution images for analog cameras. The solution has postponed the demise of analog surveillance systems and has prevented it from being phased out of market too soon.

 Comparison of HD-over-coax Solutions source: a&s

Solutions

960H

HDCVI

ccHDtv

HD-MDI

HD Analog

HD-SDI

Camera components

CCD+DSP

CMOS+ISP

CMOS+ ISP

CCD+DSP

CMOS+DSP

CMOS

Image format

Analog high resolution

Analog high definition

Analog high definition

Analog high definition

Analog high definition

Broadcasting high definition

Resolution

700TVL

720P/1080P

1080P@60FPS

1080P@30 FPS

800 TVL

1000TVL

Compatibility with existing systems

High

High

High

Switch required

High

Low

Technical complexity

Low

Low

Medium

High

Low

Medium

Transmission distance (M) without repeater (5C-2V)

200M

500M

500M

150M(Cat.5)

200M

150M

Transmission media

Coaxial cable

Coaxial cable

Coaxial cable

Twisted pair

Coaxial cable

Coaxial cable

Signals

CVBS

CVBS

CVBS

Digital

CVBS

SDI

Compression

None

None

None

None

None

None

Delay

None

None

None

None

None

None

Storage

960H DVR

HDCVI DVR

DVR

DVR

960H DVR

SDI DVR

Maintenance

Low

Low

Medium

Medium

Low

Low

Cost

Low

High

Medium

High

Low

High

Related article: New generation 960H cams: Looks better, works better and less noisy

HDCVI: UPGRADED ANALOG SOLUTIONS WITH THE COMBINATION OF CMOS AND ISP
Dahua Technology has developed a high-resolution composite video interface (HDCVI) by combining CMOS sensors with ISP. Based on the transmission technology of HD images over coaxial cables, the HDCVI technology is a solution that improves analog image resolutions and produces high-definition progressive scan images.

HDCVI released its first white paper, version 0.50, on July 31st, 2012, and its newest version 1.00 on November 15th, 2012. The white paper specified that HDCVI is applicable to two HD video formats: 720P (1280 X 720) and 1080P (1920×1080), which is similar to 700 to 750 TVL.

HDCVI uses point-to-point transmission of coaxial cables to produce uncompressed megapixel analog video images, without delay and without compromising image quality. The solution can transmit HD analog video images up to 500 meters over a SYV-75-5 video coaxial cable, breaking the distance limit of HD analog video image transmission. The HDCVI solution also synchronizes audio signals and demonstrates real-time, by-directional control of signals.

One of the biggest strengths of HDCVI is there is no need to change existing cable deployment where high-definition analog images are made possible. It also overcomes the 100-meter transmission constraint encountered by HD-SDI and IP Camera (IPC). HDCVI's noise resistant feature ensures quality transmission of high-definition images and prevents problems on vertical synchronizing and lost frames.

ccHDtv: UPGRADING VIDEO STREAMING QUALITY OVER A SINGLE CABLE
iTE Tech, a semiconductor manufacturer, has developed a ccHDtv solution based on the concept of digital TV transmissions. The system can transmit high-definition video images over coaxial cables, twisted pairs, and even over-the-air.

The ccHDtv solution allows transmission of multiple 1080P images at 30fps or 1080P at 60fps videos over a single 3C2V/5C2V cable, with a maximum transmission distance of 500 meters, without adding any repeaters.

The solution employs DTV technologies such as DVB-T, ISDB-T, and ATSC standards and solves bandwidth and storage problems faced by traditional analog CCTVs in the past. It has been a worldwide trend for DTV to replace CVBS analog TVs. DTV technologies such as DVB-T, ISDB-T, and ATSC all provide sturdy and ideal structures for transmission of HD video images.

The ccHDtv solution adopts DTV technology that is strong in audio and video transmissions. DTV technology solves the problem of insufficient bandwidth when transmitting multi-channel HD images that plagued traditional CCTV systems before. The technology also eliminates storage problems at the same time. Installation and operation of ccHDtv resemble those of traditional CCTV systems, making it easy for analog surveillance systems to transmit and store HD video images.

For those surveillance system end-users who are skeptical of IP network stability and for those who wish to maintain analog cable systems, ccHDtv has provided a shortcut to achieve high quality images.

HD-MDI: AN UPGRADED ANALOG SOLUTION OVER TWISTED PAIR
Based on twisted pair, HD-MDI transmits high-definition audio and video content using a structure that is similar to that of traditional analog surveillance systems. HD-MDI products include HD-MDI high-definition cameras, HD-MDI repeaters, HD-MDI DVRs, HD-MDI audio video capture cards, HD-MDI Optical, and HD-MDI matrixes.

The solution uses a unshielded twisted pair (UTP), 720P CMOS sensors and ISP, without compressing the images, in order to achieve real-time monitoring without delay. The uncompressed method of transmission also allows HD-MDI to transmit video signals over CAT5 or CAT6 network cables without additional cost on cabling and switches.

HD signals of video cameras can be transmitted hundreds of meters away and directly to the back encoder, which processes dual or multistreaming. Compared to other IP and HD-SDI products, which do all the video processing in cameras, the HD-MDI solution can be cost-saving. In addition, HD-MDI uses point-to-point connection and has a simple structure with no operating system. Therefore, it is easier for the solution to achieve more compact sizes and less power consuming cameras than HD IP-based ones.

800TVL: HD ANALOG SOLUTION, COMBINING CMOS AND DSPS
While traditional analog surveillance cameras are built on CCDs and DSPs, some vendors have combined high-definition CMOS sensors with DSPs and have created image resolutions up to 700~1000 TVLs. This is by far the latest and the most popular analog upgrading solution, as well as the best one. CMOS sensors can be sourced from Aptina, Pixelplus, OmniVision, and SONY. Fullhan Microelectronics, Sonix Technology, and Nextchip, on the other hand, supply DSPs that can be used to achieve this aim.

 

The combination of 1.3-megapixel CMOS sensors and DSPs can increase resolution to at least 800 TVLs. It also improves sense-up function at night. The solution can achieve nearly 100 percent color retention and accuracy without color bias. It also produces 720p progressive scan images at 60 frames per second and can provide images with no motion blur when objects move in a high-temperature environment.

CONCLUSION:
These five solutions are evidence that the need for analog systems to upgrade to high-definition images has created a hotly contested market. And high-definition video images have been made possible while coaxial cables remain unchanged. These solutions have provided users with more options and have added more years to analog surveillance systems.

 

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 >Next >Last Page