基于DM642的视频采集与处理系统设计及实现

Design and realization of video capture and compression system based on DM642

DSP作为一种具有强大数据处理能力和高运算速度的微处理器,以其为核心的嵌入式实时图像采集处理系统越来越受到广泛的关注和应用。基于TMS320DM642处理器设计构建硬件平台,采用JPEG图像压缩编码技术,实现了实时视频采集和处理。重点研究了在TMS320DM642处理器平台上实现对ITU-R BT.656YUV 4∶2∶2视频格式进行JPEG压缩编码的具体方法。并在此基础上,对实验数据进行了分析。

Embedded real-time image capture and processing system based on DSP,which has a powerful data processing capability and high speed,increasingly subject to wider attention and application.Designed and built a hardware platform based on the TMS320DM642 microprocessor.Real-time video acquisition and processing were realized with the platform and JPEG image compression technology.The specific method of image compression from ITU-R BT.656 YUV 4∶2∶2 to JPEG on TMS320DM642 platform is focused on.On this basis,experimental data were analyzed.