Abstract:  In order to improve the speed of ContourExtractor2DimageFilter algorithm and achieve real-time image contour extraction，FPGA ( Field-Programmable Gate Array) is chosen as the main processing chip to study how to implement the hardware part of ContourExtractor2DimageFilter algorithm based on Xilinx Spartan-3 series FPGA design． In order to improve the speed of the algorithm and the real-time image contour extraction，more effective computer systems are used to interpret images，to achieve a similar human vision system，to understand the external world．

Key words: video image extraction, field-programmable gate array( FPGA) chip, ContourExtractor2DimageFilter algorithm