Reduction of blocking effect in DCT-coded images using zero-masking techniques

被引：73

作者：

Zeng, B ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Clear Water Bay, Kowloon, Peoples R China

来源：

SIGNAL PROCESSING | 1999年 / 79卷 / 02期

关键词：

DCT-based compression; blocking artifacts; blocking effect reduction; zero-masking;

D O I：

10.1016/S0165-1684(99)00094-8

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：

It is well-known that the blocking effect is one of the major drawbacks in the DCT-based compression schemes (such as JPEG) at low bit rates. In this paper, we propose a novel technique to reduce blocking artifacts, which is based on applying a zero-masking to the DCT coefficients of some shifted image data blocks. Some simulation results are presented to show that such a simple method can provide a respectable performance. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：205 / 211

页数：7

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