In this paper, we analyzed the key technology of current video surveillance systems, compared the performances, prices,
and the prospects between the H.264 and AVS codec technologies, studied the advantages and disadvantages of different
designs, particularly the data transmission, terminal reception facilities, decoding and demonstration of the video
surveillance systems. We have optimized the core algorithms such as intra prediction, inter prediction and fast motion
estimation, and performed some relevant simulations for these algorithms. Experimental results show that these new
algorithms simplified the design and speeded up the compression rate. From the simulation results, we proposed a new
video surveillance system based on AVS. The program reached low price, high efficiency, fast, high image quality,
convenient application and operation, greatly improved the current video surveillance systems.