基于多DSP+FPGA图像实时解码系统的设计与实现

Multiple DSP+FPGA Based Image Real-time Decoding System

随着图像传输技术的广泛应用,图像压缩解压能力直接影响系统的性能和指标。为了满足传输系统对实时性、高帧率、高图像质量的要求,研制了一套基于多DSP+FPGA的图像实时解码系统。该系统实现了对网络接口输入的PCM信号进行接收、解包和解码,恢复出原始图像信息,并进行实时显示(显示包括PAL制式模拟视频显示和PC机上位机实时显示)与存储等功能。该系统设计已经成功通过测试,完成了系统实时性、高帧率、高图像质量等要求。

Image processing technology is applied more and more widely ,image compression decompression ability di-rectly affect the performance of the system and index .To meet the requirements of the system real-time performance ,high frame rate ,high image quality ,develop image real-time decoding system is developed based on multiple DSP ＋ FPGA .This system has realized the network interface input of PCM signal receiving ,unpacking and decoding ,restores the original image information ,the real-time display （display including PAL analog video real-time display and the PC software real-time dis-play） ,storage ,and other functions .This system design has passed the test successfully ,meets the requirements of the sys-tem real-time performance ,high frame rate ,high image quality ,etc .