用可编程并行DSP实现视频编解码器

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI:10.1109/GLOCOM.1989.64093

M. Nomura, J. Suzuki, S. Ono

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引用次数: 4

摘要

介绍了一种用可编程并行数字信号处理器(DSP)实现视频编解码器的方法。讨论了DSP实现相对于专用VLSI实现的优势。综述了多计算机型DSP系统NOVI的系统设计概念和体系结构。该系统是并行处理系统的程序开发和性能评估的原型。帧内离散余弦变换(DCT)编解码器是由NOVI实现的一种变换型视频编解码器。测试了所实现编解码器的处理速度。这个编解码器可以使用34个pe(处理元素)处理9帧/秒(一帧由256*240像素的图像组成):16个pe用于编码器，16个pe用于解码器，2个pe用于视频I/O。分组组装和多路复用也由编解码器执行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Implementation of video codec with programmable parallel DSP

The implementation of a video codec with a programmable parallel digital signal processor (DSP) is described. The advantages of DSP implementation over dedicated VLSI implementation are discussed. System design concepts and the architecture for a multicomputer-type DSP system called NOVI are reviewed. This system has been developed as a prototype for program development and performance evaluation of parallel processing systems. Intraframe DCT (discrete cosine transform) codec is implemented by NOVI as an example of a transform-type video codec. The processing speed of the implemented codec is examined. This codec can process 9 frames/s (one frame consists of a 256*240 pixel image) using 34 PEs (processing elements): 16 PEs for the coder, 16 PEs for the decoder, and 2 PEs for the video I/O. Packet assembly and multiplexing are also performed by the codec.<>

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来源期刊

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond

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