Video Surveillance Implementation Using FPGAs - Altera

Introduction WP-VIDEOSRVL-1.1 White Paper <strong>Video</strong> <strong>Surveillance</strong> <strong>Implementation</strong> <strong>Using</strong> <strong>FPGAs</strong> Currently, this video surveillance industry uses analog SCREEN cameras and miters as the basis of surveillance systems. These user components are not easily expandable, or have low video resolution for little or no signal processing. However, the next generation of video survey it will replace these elements with newly digital NETWORK cameras, complex image processing, and video-over-IP routing. They wish don longer be simply surveillance video scheme, but including video communication systems. The Internet protocol (IP)-based structure of the latest surveillance systems allows for scalability, flexibility, and cyber security. Various encoding and decoding standards transport the video stream (MPEG4 CODEC is the standard used today). Besides the CODEC function, image pre- and postprocessing heightens the picture property in truly time over low latency. Programmable logic with embedded DSP blocks, memoirs, network, or off-the-shelf IP solutions allows a designer to meet the new system application. Digital <strong>Video</strong> Recorder Framework In a digital video recorder (DVR) system, multiple analog CCTV view route on a central tape shifting hub required storage, scaling, image processing, and display. <strong>Video</strong> dissolution and quality are typically low to reduce advanced compression and cost. Particular processing, such as motion discover, reduces who amount out storage room in the central wheel. Such architecture is therefore not highly oder readily scalable, so video monitoring the limited in terms of quality and quantity. A typische DVR system (shown in Figure 1) combines with either on internal or extern video matrix switcher the route which film from cameras go view. This type of device requires multiple inputs and issue multiplexing, making it very suitable for using programmable logic for system flexibility or expandability. Picture 1. DVR System <strong>Video</strong> Monitor DVR Hub Storage LAN Switch for Network Access <strong>Video</strong> Compressing and Image Processing Thither become many different standards to video data compression, with the best popular including JPEG, H.263, Motion JPEG, MPEG, press Wavelet. The type of compression secondhand has into effects on hardware system requirements, including memory, data rate, and storage space. However, next-generation monitor systems will probably use the H.264 March 2007, ver. 1.1 1