Processing System Of Video Image Based On FPGA

With the rapid development of electronics and computer technology, video image processing is increasingly being paid more attention and being used in a variety of fields, DMB( Digital Multimedia Broadcasting), consumer electronics, surveillance, medicinal imaging and document image processing and so on. The main challenges for image processing due to both the speed and the low-efficiency when the enormous amount of video data require per frame. The second challenge is dealing with simulation time and test environment.First, a video image processing system based on FPGA (Field Programmable Gate Array) is presented by analyzing the video signal processing and typical video image processing system. Second, the video decoding chip SAA7113 be chosen to finish the sample module by three steps, a) Finishing the initialization of SAA7113 by configuring the work pattern of the chip. b) Writing Verilog HDL (Hardware Description Languages) source code to sample image data by analyzing the output data format. c) Control storage by analyzing read and write timing SRAM. Third, finishes the Textbench to verify the functional and timing models of the design. Last, the combination of MATLAB, System Generator for DSP and ISE environment to build a model to implement smoothing, sharpening reference algorithm. Once these are simulated using Simulink, they can automatically generated HDL files and Netlist. And it can be used in the ISE.The innovation point of the paper is to develop video image algorithm in System Generator for DSP, It's the ideal platform and the trend of video image processing, for flexible and convenience.