Application Of Video Compression Algorithm Based On Wavelet In Video Surveillance System

Digital Video Surveillance System is an integral part of security system and used in various area widely at present.Howerver,the transmission and storage of huge video data restrict the development of video surveillance system,so all of these technology are needed to compressing the large number of image data urgently. Traditional video compression are Discrete Cosine Transform encode based on detach block,but the block effect and flying mosquito yawp based on DCT picture is inevitable,however wavelet compression technology has good quality of rate-distortion in the aspect of eliminating block effect and flying mosquito yawp which caused by DCT. Therefore,against the status of blocking and flying mosquito noise do not solute well, in this paper,we compress the video used wavelet compression technology to make a good result of video and provide the valuable resource information for Surveillance System.The main contents and innovation of this article are as follows:(1) In the basis of wavelet theory, introduces two types of still image compression coding based on wavelet:one is Lifting Wavelet Transform the other is Embedded Wavelet Transform,and makes an analysis and comparison of EZW,SPIHT and SPECK which in the Embedded Wavelet Transform.(2) Studys the video compression coding of wavelet based on still image coding of wavelet.(3) In this paper,we focus on the multi-resolution motion estimation algorithm,and with the blocking and flying mosquito noise which in the Video Surveillance System,now we applies the algorithm to Video Surveillance System and makes an improvement for this algorithm.The experiment results show that the improved algorithm can improve the efficiency of video compression greatly.(4) It gives the design scheme and related realization technology of Video Surveillance System.On this basis,we design and develop a Video Surveillance System which based on the algorithm of wavelet.The experiment results show that the remote can see the video images of local realtimely, clearly, smoothly in a Video Surveillance System,also improve the function of Video Surveillance System,produce the synchronization of audio and video and make it become to a full real Video Surveillance System.