基于DSP和FPGA的实时视频图像处理系统设计

Design of Real-time Video Image Processing System Based on DSP and FPGA

随着DSP的不断发展，视频图像处理技术也不断提高并得到了广泛的应用[1】。其中主要应用之一是对被测物体进行高速实时采集。由此本文介绍了一种实时视频图像处理系统设计，该系统以TMS320C6455为核心，结合视频解码芯片SAA711IH，与FPGA构成实时图像采集和逻辑控制单元，其中主要利用乒乓缓存操作来实现数据的采集和处理【2】。作者详细介绍了FPGA的图像采集和逻辑控制部分，DSP数据中断响应处理结果，可以将处理好的数据发送到PC机上做进一步的处理。该系统在工业领域图像处理方面具有较高的利用价值。

With the continuous development of DSP, video image processing technology has also improved continuously and it has been widely applied. One of the major applications is real-time acquisition for the measured object in high speed. Thus, this pa- per introduces the design of a real-time video image processing system. By taking TMS320C6455 as the core, combining with the video decoding chip SAA7111H and the FPGA , a real-time image acquisition and logic control unit is constituted in the system, in which the data acquisition and processing is realized by mainly using ping-pong caching operation. The author describes in detail the parts of the FPGA image acquisition and the logic control, as well as the DSP data interrupt response processing result, furthermore the processed data can be sent to the PC for further processing. The system has a higher utilizing value in the aspect of image pro- cessing of industries.