Fpga-based Video Image Processing System

In embedded real-time system, the cores often are parallel computers, Digital Signal processors (DSPs), Application Specific Integrated Circuits (ASICs) and so on. But in latest years, with the development of EDA technology, System on programmable chips (SOPCs) have been becoming more and more popular. Field programmable gate arrays (FPGAs) are much lower cost, much higher parallel computing speed and much more flexible. Specially, FPGAs embrace particular superiority in video and image processing systems. So that is to comply with current FPGA development tendency and display FPGA the important characteristic fully through using FPGA to do real-time video processing. This article proposed one kind real-time video processing system solution that based on FPGA as the core in view of the appearance and the widespread application of FPGA in embedded real time system currently. And I carried on the confirmation through the video processing developed platform that based on Spartanc Ⅱ and Spartan-3 .In view of the actual item demand, and according to the technology route, by the logic design of FPGA, PAL analog television signal filter processing and conjugation conversion have been realized.The key of design is not the algorithm itself, but logic design. So the main content of paper is realizing the real-time sample, process and display by logic circuits. The emphases are constructing the bus controller, data channel and command transfer modules. By in-depth analysis and using video decoding and encoding technology, parallel processing and pipeline processing technology, the decoding and encoding modules, memory controller module, the I2C bus controller module and algorithms realizing modules and so on have been designed and the logic design of all the modules, the core as the system has been structured.