High definition (HD) reaches every level of life, from movies, household televisions to even small network decoders. HD has entered the video surveillance industry as well. It provides end users with more detailed images, compared to older CIF and D1 resolutions. Without a doubt, HD surveillance will become a mainstream solution for security. A&S International China Best Buys talks to Dennis Hu, Deputy GM of the Digital Video Surveillance Division at CSST Intelligence (CSSI), to unveil the company's development toward HD.
High definition (HD) reaches every level of life, from movies, household televisions to even small network decoders. HD has entered the video surveillance industry as well. It provides end users with more detailed images, compared to older CIF and D1 resolutions. Without a doubt, HD surveillance will become a mainstream solution for security. A&S International China Best Buys talks to Dennis Hu, Deputy GM of the Digital Video Surveillance Division at CSST Intelligence (CSSI), to unveil the company's development toward HD.
CSSI is committed to developing high definition (HD) video surveillance solutions. Its product lines feature analog HD, HDcctv as well as network HD. The company provides a total HD solution to satisfy different needs. This means not just launching one camera or one DVR - it means a system which integrates front-end devices, back-end devices, management platforms and displays. "With years of R&D in HD and strong manufacturing capabilities, CSSI is able to provide high-resolution products," said Dennis Hu, Deputy GM of the Digital Video Surveillance Division at CSSI.
Analog HD
Analog high-resolution surveillance requires refining analog and DVR capabilities to deliver larger images. The company launched 650 TVL analog cameras, which feature Sony CCD image sensors. Hu pointed out the cameras reach 650 horizontal TVL and have an effective pixel count of 976 (H) x 582 (V), increasing resolution to maximum analog limits. Integrated with HD DVRs, the image quality is much better compared to conventional 540 and 420 TVL cameras. The camera's effective pixels are nearly 1.4 times more than D1 (720 x 576), Hu said.
Analog HD DVRs offer better resolution in real-time storage and transmission, without increasing database requirements too much. The structure is exactly as same as traditional surveillance systems, requiring users to only install new HD cameras and DVRs. This change does not cause undue inconvenience to installers or end users. "Therefore, we see a very promising market in this product application," Hu added.
HDcctv
CSSI, as a core member of the HDcctv Alliance, offers a wide range of compliant products. Its HDcctv lineup includes digital HD cameras, HD-SDI DVRs and HD-SDI displays. "HD-SDI is a standard in broadcasting," Hu explained. "It is a breakthrough application to use HD-SDI for the security industry. In this case, it uses digital signal transmission like a network camera. However, its transmission method over coaxial cables is the same as analog cameras, without delay and compression."
HD-SDI compliant cameras support resolution up to broadcast HD standards, which is 1,920 by 1,080. With HD-SDI DVRs, images can be encoded and stored, as well as transmitted over networks. Through an HD-SDI port to an HD monitor, it enables HD video display and playback as well.
"Understanding digital HD requires strong real-time playback capability," said Hu. "CSSI offers a total solution, from image capture, encoding, transmission, storage, recording and management. Several HD products will be launched, including HD-SDI cameras, four-channel 1,080p HD-SDI DVRs as well as HD monitors."
Network High Definition
Network HD is a hot trend in security. Ethernet is a common transmission medium for cabling, but can incur network transmission delay and image resolution distortion. However, improvements in CMOS have reduced the total cost for network cameras. More installers and end users also have a better understanding of networked products.
"The company has invested much effort in developing megapixel network cameras, HD NVRs, hybrid DVRs, HD encoders/decoders, HD network speed domes, as well as HD software for years," said Hu. "Our network camera features an advanced SoC, which supports H.264 high profile, three power supplies (PoE, DC 24 V and AC 12 V), wireless transmission and 3-G. Its transmission delay is less than 120 milliseconds. In 2011, we will launch several cameras, including 1.3-, 2- and 5-megapxiel models."
Hu said CSSI plans to roll out NVRs and stand-alone decoders as well. The products will simultaneously decode 16 channels in D1, six channels in 720p or four channels in 1,080p resolution. They will support HDMI as well. Furthermore, the company's new hybrid DVR supports 16 D1 analog inputs as well as four 1,080p30 network camera inputs or six 720p30 network camera inputs.
CSSI's total solution of three HD video surveillance systems caters to different customer needs. "We design from a systematic and large-scale perspective, for end users to truly leverage maximum benefit from HD products," Hu said.
●Viewse and HighEasy are two brands operated under CSSI.