Efficient VQ-based image coding scheme using inverse function and lossless index coding

被引：8

作者：

Hu, Yu-Chen ^{[1
]}

Chen, Wu-Lin ^{[1
]}

Lo, Chun-Chi ^{[2
]}

Wu, Chang-Ming ^{[3
]}

Wen, Chia-Hsien ^{[1
]}

机构：

[1] Providence Univ, Dept Comp Sci & Informat Management, Taichung 43301, Taiwan

[2] Providence Univ, Dept Comp Sci & Informat Engn, Taichung 43301, Taiwan

[3] Chung Yuan Christian Univ, Dept Elect Engn, Chungli 32023, Taiwan

来源：

SIGNAL PROCESSING | 2013年 / 93卷 / 09期

关键词：

Image compression; Vector quantization; Inverse function; Lossless index coding; VECTOR QUANTIZATION SCHEME; COMPRESSION; ALGORITHM;

D O I：

10.1016/j.sigpro.2013.03.034

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel image coding scheme based on vector quantization (VQ) is proposed in this paper. The goal of the proposed scheme is to provide better image qualities of the compressed grayscale images while keeping low bit rates. To achieve the goal, the encoding of the inverse image block is cooperated with the VQ scheme. In addition, the lossless index coding process is employed in the proposed scheme to cut down the required bit rates. From the results, it is shown that the proposed scheme achieves better image qualities than VQ while keeping low bit rates. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：2432 / 2439

页数：8

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