After introducing the standard of digital video compressing and the arithmetic of JPEG, this thesis researches the technology of video signal capturing and processing unit which is based on JPEG standard.

• 本文在介绍了数字视频图像压缩标准和JPEG压缩算法后，针对图像监控的场合，研究了基于JPEG标准的视频采集处理单元相关的技术，并完成了基于ARM的JPEG的图像采集压缩单元设计。