期刊文献+

阈值对游程编码压缩率影响分析 被引量:1

Analysis of the Threshold Impact on Run-length Coding Compression Ratio
下载PDF
导出
摘要 游程编码是一种无损压缩算法,其简单、易于实现的特性也使它得到了广泛的应用。传统的游程编码选取固定的阈值,这在特定数据类型下限制了压缩率的提高。通过严谨的数学分析推导出了在全数值范围内不同阈值对游程编码压缩率的影响,并进行了程序验证,得出结论,为不同类型的数据对游程编码进行改进给出了通用解决方案。 Run-length coding is a lossless compression algorithm and has been widely applied because it is simple and easy to realize. Traditional run-length coding select fixed threshold, limit the compression ratio in specific type of data. Through rigorous mathematical analysis, the paper derives the different threshoqd in the whole range of value impacting on run-length coding compression ratio, along with validation procedures, draws some conclusions, provides a generic improvement solution for different types data encoding with run-length.
出处 《计算机与数字工程》 2008年第9期31-33,49,共4页 Computer & Digital Engineering
关键词 游程编码 阈值 压缩率 改进 run-length coding, threshold, compression ratio, improvement
  • 引文网络
  • 相关文献

参考文献6

二级参考文献18

  • 1马宁,朱福萌,尹志军,蒋林辉.改进游程编码在天气雷达数据压缩中的应用[J].解放军理工大学学报(自然科学版),2004,5(6):88-90. 被引量:19
  • 2孙学岩,叶海建,韩玉坤.数字图像压缩原理及常用压缩编码方法[J].农机化研究,2005,27(3):128-130. 被引量:3
  • 3吴铮,何明一.小波图像的膨胀-游程编码算法[J].电子与信息学报,2005,27(7):1030-1034. 被引量:5
  • 4吴乐南.数据压缩的原理与应用[M].北京:电子工业出版社,1994..
  • 5Anedda C, Felician L. P-Compressed Quadtrees for Image Storing. The Computer Journal, 1998,31 (4): 353-357.
  • 6Pajarola R. Fast Huffman Code Processing. UCI-ICS Technical Report No. 99-43, 1999-10.
  • 7KRUGER A, KRAJEWSKI W F. Efficient storage of weather radar data [J]. Software-Practice and Experience, 1997, 27(6): 623-635.
  • 8晶晨工作室.最流行图像格式使用参考手册.北京:电子工业出版社,1998
  • 9钱国祥.数据压缩技术经典.北京:学苑出版社,1996
  • 10JACOB Z,ABRAHAM L.A universal algorithm for sequential data compression[J].IEEE Transactions on Information Theory,1977,23,(3):337-343.

共引文献48

同被引文献7

引证文献1

;
使用帮助 返回顶部