A VLSI Architecture for Vector Quantization

周汀; 陈旭昀; 章倩苓; 李蔚

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A VLSI Architecture for Vector Quantization

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- A VLSI Architecture for Vector Quantization
- Acta Electronica Sinica Issue 5, Pages: 51-55(1998)
- 作者机构：
  
  1. 复旦大学专用集成电路与系统国家重点实验室!上海
  2. 200433
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.8
- Published：1998
- 稿件说明：
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[1]周汀,陈旭昀,章倩苓,李蔚.一种矢量编码器的VLSI结构[J].电子学报,1998(05):51-55+85.

周汀, 陈旭昀, 章倩苓, et al. A VLSI Architecture for Vector Quantization[J]. Acta Electronica Sinica, 1998, (5): 51-55.
[1]周汀,陈旭昀,章倩苓,李蔚.一种矢量编码器的VLSI结构[J].电子学报,1998(05):51-55+85. DOI：

周汀, 陈旭昀, 章倩苓, et al. A VLSI Architecture for Vector Quantization[J]. Acta Electronica Sinica, 1998, (5): 51-55. DOI：

摘要

我们提出了一种基于最小绝对值误差测试（MMAE）矢量编码器的VLSI结构．这一结构采用了误差测度的和值不等式判据、预排序的码书和最近邻搜索算法，并采用二分搜索方法和特殊的误差测度计算及比较结构，大大降低了系统的实现规模，同时采用并行流水线等设计技术，可以获得每8个时钟周期编码一个矢量的处理速度，整个系统采用硬件描述语言VHDL在Synopsys系统中进行了设计验证和综合．

Abstract

A new VLSI architecture for Vector Quantization（VQ） based on Minimum Mean Absolute Error （MMAE） is proposed.By using a criterion based on sum inequality of distortion measure

presorted codebook and nearest search method

a large number of codewords will be rejected before computing MMAE while main taining image quality.Furthermore

a dichotomy search method

an optimized MAE computation and comparasion structure has been been used .All of the above methods result in a considerable reduction in VLSI area.

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Related Institution

Dept.of Electronics & Information Engineering,Huazhong University of science &Technology

Institute of Information Science,Xidian University

.O. Box 113,Beijing University of Posts & Telecommunications,Beijing

复旦大学专用集成电路与系统国家重点实验室

Information Engineering Faculty of shenzhen Univ.

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