基于3-参数变长编码的图像无损压缩算法

高健; 饶珺; 孙瑞鹏

doi:10.3724/SP.J.1004.2013.01289

基于3-参数变长编码的图像无损压缩算法

doi: 10.3724/SP.J.1004.2013.01289

1.
上海大学机电工程与自动化学院上海 200072

详细信息

作者简介:
高健华中科技大学博士, 上海大学副教授. 主要研究方向为图像处理, 计算数学.E-mail: gaojian@shu.edu.cn

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出版历程
- 收稿日期: 2011-11-24
- 修回日期: 2012-12-21
- 刊出日期: 2013-08-20

An Image Lossless Compression Algorithm Based on 3-PVLC

1.
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072

摘要

摘要: 通过对 Huffman 编码方法的研究和分析, 提出了一种基于3-参数变长编码(3-PVLC)的图像数据无损压缩算法. 在图像数据转换为混合差分数据基础上, 采用3-PVLC 对差分数据进行一次编码, 并利用一种自适应性的游长缩减法对一次编码后的二值码流进行二次编码. 本文的编解码方法较灵活, 可依据具体需要进行基于3-PVLC 方法的一次编码或在一次编码基础上完成二次编码, 且具较高压缩比.
- 无损压缩 /
- 压缩编码 /
- 混合差分 /
- 游长编码
Abstract: According to the study and analysis of Huffman coding method, this research proposes a kind of image lossless compression algorithm, which is based on 3-parameter variable length coding (3-PVLC). By conversion of image data to hybrid differential data, this research uses 3-PVLC for the 1st coding. After the 1st coding, an adaptive run-length reduction method is used for the 2nd coding to compress the achieved binary stream. The processes of coding and decoding in this research are simple, and this method possesses a higher compression ratio.
- Lossless compression /
- compression coding /
- hybrid differential /
- run-length coding

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参考文献(13)

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