08 novembre 2012 ~ 0 Commentaire

CCTV and Video Analytics

Digital technology, as opposed to analogue, produces images consisting of hundreds or even thousands of tiny dots called pixels. The digital image created by the alignment of pixels, is of a high quality image with precision so far surpasses the pictures taken with analogue cameras. This enables one to digitally zoom on recorded or live CCTV footage without pixelization which occurs with all analogue CCTV systems.

The use of video analysis for physical security systems is just in its beginning stages. However, already, digital camera systems detect motion to trigger an action as an alarm, activate another camera, texting, or even to turn the spotlights through system integration. Digital IP Cameras can now be used to gather vital information for a business e.g. a camera at a doorway in a retail environment can count the number of customers entering and leaving the premises.

Technically the camera captures images and then sends them on to a Network Video Recorder (NVR). The NVR interprets the data and initiates preconfigured called actions. The software within the NVR controls these functions rather than the hardware. Video analytics is a technology in an early stage. More and more tools based on pixel analysis will be created in the future, as both hardware and software manufacturers improve digital technology. Some manufacturers are concentrating on placing the analytics in the CCTV Camera whilst others continue to develop the Network Video Recorder. A general observation on this is that a standalone Camera solution would suit a smaller application but for larger applications an NVR is required so if the customer needs to interrogate the standalone DVR CCTV he uses the NVR which controls all the Cameras rather than having to interrogate each camera.

IP Megapixel cameras Finally, High Definition for Video Security has arrived. You know the ones they have shown on CSI and other TV shows that provides the detailed video from video recordings. Not yet for the masses, the post-recording analysis is, almost, around the corner due to high resolution megapixel camera technology. HD Camera Video streaming is here and it will get much better over the next 5 years. Look out for faster throughput at 30FPS to help penetrate the analog market. Reduction in IP Video camera and system pricing will be severe as competition grows starting in 2010.

Video Software Applications – A major increase in video security software development should follow IP camera market penetration. New companies will be formed and emphasis on software video security applications will grow. Video access to the iPhone and Blackberry devices are now becoming available today along with unique Video Analytic applications. Software development in the Video Security market is a new science practically as hardware-based (DVR) systems are the predominant technology. The future will provide software-based applications utilizing IP Video and open up the field for 3rd-party applications. Video standards adoption is vital. 16 Channel standalone DVR for instance, will widely applied in the future.

Network-Based Video Systems – Digital Video Recorders with IP and Analog camera systems on LAN and Remote WAN. « Video at your fingertips » as Gates once said. Emerging video network worries the internet providers as mass video is being pumped through the network. Video compression such as H.264 and improvements in this compression is important to the network-video application.

Analog CCTV Camera – Analog cameras are a commodity to be absorbed by import cameras below $50. In 2015 the analog camera market should go from 85% to less than 25% of the security video sales. IP Video standard is critical. The DVR and cctv camera system are akin to the telecommunications analog switch and will follow the same path.

IP Video Standards – IP Video standards are an important factor in IP Video growth. In the beginning of 2010, its every man for himself as IP Video transmission is proprietary and self-defined by the mfg. The lack of a standard leads to higher costs and less integration of multiple devices.

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