Study Of A Visual Surveillance System Based On DSP

With the rapid development of DSP, electronic and network transmission technique, research on the hardware and software of visual surveillance system has become an important research topic in the surveillance field. More consideration on the design of hardware and software of DSP system is required according to complex real-time application. This thesis, taking the key scientific and technological project of Henan province"The development of the binocular vision surveillance system"as the research background, devotes main efforts to the research of the vision surveillance system based on DSP in the aspects both hardware and software, mainly including:1. Hardware system design of monocular visual surveillance system based on DSP and FPGAThe actual application has set higher and higher real time demands for the visual surveillance system. To meet such a demand, a monocular surveillance hardware system based on the combining TMS320C6201 DSP with ACEX1K100 FPGA is designed from the viewpoint of the module.2. Design of channel switch algorithm of binocular visual surveillance systemWith respect to the different demands in the different surveillance scene, binocular visual surveillance system should have the channel free switch function in actual application. To meet such a demand, a dual channel switch algorithm is designed, which has the function that each of the two images from the dual channel can be displayed alone or both of the two images can be displayed in a monitor. At the same time, the function has been implemented on the DM642 developing platform.3. Development of the network visual surveillance system based on DM642By combining the modern computer network technology with the traditional visual surveillance system, the remote visual surveillance can be realized, which extends the surveillance system application. After analyzing JPEG image compression working principle, a remote visual surveillance system is constructed by combining DM642 developing platform with PC through the Ethernet. At last, video coding, video decoding and network transmission are realized on the system in this thesis.