Efficient VLSI implementation of a VLC decoder for universal variable length code

IEEE Computer Society Annual Symposium on VLSI, 2003. Proceedings. Pub Date : 2003-02-20 DOI:10.1109/ISVLSI.2003.1183467

Shang Xue, B. Oelmann

引用次数: 1

Abstract

Variable length code (VLC) is used in a large variety of lossless compression applications. A specially designed VLC, called "Universal Variable Length Code" (UVLC), is utilized in the latest video coding standard H.26L under development. In this work we develop an efficient decoder for UVLC by utilizing the special properties of UVLC which perform coding in an alternating way (ALT). We compare the ALT decoder with the decoder called "VLC decoder using plane separation" (PLS) which is claimed to be one of the most effective VLC decoders. Our results show that the ALT decoder is 1.34 times faster 1.7 times smaller and consumes 45% power in comparison to the PLS decoder.

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通用变长码的高效VLSI实现

可变长度码(VLC)用于各种各样的无损压缩应用。正在开发的最新视频编码标准H.26L中使用了一种专门设计的VLC，称为“通用变长码”(UVLC)。在这项工作中，我们开发了一个高效的解码器UVLC利用UVLC的特殊性质，执行编码的交替方式(ALT)。我们将ALT解码器与称为“使用平面分离的VLC解码器”(PLS)的解码器进行比较，该解码器据称是最有效的VLC解码器之一。我们的结果表明，与PLS解码器相比，ALT解码器速度快1.34倍，体积小1.7倍，功耗为45%。

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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IEEE Computer Society Annual Symposium on VLSI, 2003. Proceedings.

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