Mobile Storage
Mobile DVRs or NVRs must be rugged, with constant vibration ruling out most HDDs. "PC-based systems are too delicate for this setting, and embedded systems have less of a chance to break down," said Jeff Hsu, Regional Sales, Plustek.
Some onboard storage solutions combine flash memorywith PoE for power, as well as backup battery power, said Gary Chiang, GM of Panacom. However, HD surveillance will require added storage and power.
Channel Density
As recording increases, the number of inputs affects the video surveillance system. "There is an estimated 4
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| Tony Yang, International Marketing Director, Hikvision Digital Technology |
million hours of recording per week in the U.S. alone," said Todd Matsler, Director of Segment Marketing, Embedded and Communications Group, Intel. "In the transition to HD in the next couple of years, several system design challenges will arise, the chief of which being channel density."
Current multichannel 1,080p processing beyond four channels can be tricky. "At the moment, the Intel Sandy Bridge platform allows for eight-channel, real-time hardware encoding and decoding at 1,080p, but with optimization, there is potential to go up to 40 channels," said Bach Chen, Director of Platform Technology, Huper Laboratories. "Pricing issues should be resolved within a year as the platform and HD-SDI serializers and deserializers become more readily available."
Other HD-SDI manufacturers have deployed Intel's Sandy Bridge platform for better encoding and decoding. "Our capture card supports five interfaces: RGB, SDI, HDMI, DVI and components," said Wendy Lin, Sales Director of Yuan High-Tech. While its software compression card can handle four channels of 1,080p resolution at 30 fps, more inputs will incur image lag.
Analytics
Video analytics benefit from higher-resolution detail, delivering better identification in traffic applications such as ALPR or retail behavior analysis. "In system management, we expect to see more automatic and remote detection, diagnostics and healing, which provides ROI for all parties involved," Matsler said.
AVTech's network camera includes onboard analytics and complete Mac support for remote monitoring on an iPhone or iPad.
Metadata from analytics can speed up searches through recorded images. "In traffic monitoring, HD surveillance
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| Hiroshi Sekiguchi, IP Security Product MD, Panasonic Systems |
is required to read the plate number, driver's face and vehicle type or color," said Tony Yang, International Marketing Director for Hikvision Digital Technology.
Increased resolution and more powerful chips will yield more accurate intelligence, such as real-time facial detection and recognition, said Hiroshi Sekiguchi, IP Security Product MD, Panasonic System Networks.
Enhanced identification is ideal, but video content analysis (VCA) is notorious for false alarms. Adding another dimension with 3-D analytics can address problem areas such as depth, color, reflections and shadows, Chen said. Performed with two sensors, 3-D analytics leverage HD and faster processing, aiding accuracy.
Where VCA is placed in a video surveillance system depends on where it can provide the most value to users. "Easy integration with PSIM and VMS is the key ingredient, as it allows the solution provider to focus on solving the problems at hand, rather than making the components work with each other," said Edward Troha, MD of Global Marketing, ObjectVideo.