| 基于DCT子空间失真测度的矢量量化VLSI结构设计 |
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| 引用本文： | 周汀 章倩苓. 基于DCT子空间失真测度的矢量量化VLSI结构设计[J]. 电路与系统学报, 1997, 2(2): 35-40 |
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| 作者姓名： | 周汀 章倩苓 |
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| 作者单位： | 复旦大学专用集成电路与系统国家重点实验室!上海，200433 |
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| 摘 要： | 本文提出了一种实现离散余弦变换子空间失真测度矢量编码算法的ＶＬＳＩ结构。
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| 关 键 词： | 图象编码 矢量量化 VLSI 结构设计 |
A VLSI Architecture for Vector Quantization Based on DCT Subspace Distortion Measure |
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| Zhou Ting, Zhang Qianling,Li wei, Min Hao. A VLSI Architecture for Vector Quantization Based on DCT Subspace Distortion Measure[J]. Journal of Circuits and Systems, 1997, 2(2): 35-40 |
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| Authors: | Zhou Ting Zhang Qianling Li wei Min Hao |
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| Abstract: | A VLSI architeture for a new vector quantization encoding algorithm based on DCT subspace distortion measure is pressented. In the architecture,the dimensionality of the coder distorition measure is reduced form 16 to 4 by mapping the input vectors to DCT subspace, a searching method based on minimum covering set is also adopted to improve the performace of the encoding lgorithms inSNR.As a result,the implementation complexity of the encoder is reduced to 1/4 while the quality of the reconstructed image is maintained. |
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| Keywords: | Image coding Vector quantization DCT VLSI |
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