Scaling New ‘Highs' in Security? Not So Fast…
By the Editorial Team | Date:
HD video is emerging as an alternative to analog and standard IP solutions. However, several technical issues remain for transmission, processing and storage, with relatively few HD solutions ready for mass production. A&S finds out about the bottlenecks and issues for the SD migration to HD, along with access control and intrusion integration.
HD video surveillance is the latest offering in a largely unchanged video product lineup from this year's trade
|Sunny Lee, Business Development Director, Catalog Processors/EEE Products, Texas Instruments
shows worldwide. While manufacturers previously tried to cram as many megapixels as they could into their cameras, HD is now touted as the standard for real-time viewing at manageable bandwidth rates. As a consumer standard, most users see and grasp the difference between standard definition (SD) and HDTV-quality broadcasts.
But seeing the bigger picture is not without challenges. Not only are more pixels and TVLs being captured, they also require more bandwidth, processing and storage. These limit the number of channels that can be supported at higher resolutions. Uncompressed high-resolution video cannot be processed digitally either — an issue for open-platform VMS designed for IP inputs. HD cameras are hot — literally — due to the added computing power burning up components, which could reduce product life span.
These challenges have not stopped manufacturers from launching high-resolution products. From cameras, transmission peripherals to displays, dozens of Asian manufacturers have
|Fan Look, VP of North Asia, Axis Communications
product demos ready. While mass production shipping dates are up in the air, HD product development divides into two camps: compliance with the HDcctv Alliance and HD-SDI solutions. "Our HD-SDI cameras and DVRs are already HDcctv-certified and sampling worldwide, with highlighted interest from the U.S., U.K. and France; DVRs include the four-channel, real-time model and the hybrid model (two-channel HD and 14-channel analog)," said Randy Hong, Sales Manager at Micro Digital. "The overheating problem has been overcome with a special coolant."
EverFocus Electronics has a complete HDcctv camera lineup, compared to a single camera and DVR offering last year. Other vendors expect to commercialize HDcctv products by the end of 2011, such as Korean vendors Apro and Nextchip. Deeplet Technology, a maker of H.264 DVRs, is considering HDcctv, said Yvonne Lo, Manager.