De-correlation Characteristic Analysis of Variety Integer DCT Transform Radix

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De-correlation Characteristic Analysis of Variety Integer DCT Transform Radix

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- De-correlation Characteristic Analysis of Variety Integer DCT Transform Radix
- Chinese Journal of Liquid Crystals and Displays Vol. 27, Issue 1, (2012)
- 作者机构：
  
  江西理工大学2. 江西理工大学信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：09 April 2012，
  
  Revised：08 June 2012，
  
  Published Online：27 August 2012，
  
  Published：15 February 2012
- 稿件说明：
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摘要

对整数DCT变换矩阵填充规则加以改进，得到一类新的整数变换基，称为“类整数DCT”变换基。从海量“类整数DCT”变换基中搜索出若干优选变换基，应用于MPEG4编解码实验，经实验测试和数据分析，结果表明优选“类整数DCT”变换基归一化正交矩阵与DCT变换的去相关性能相近，可替代整数DCT变换在图像编码中所起的作用。由于“类整数DCT”变换有完全快速算法，便于硬件实现，应用于图像编码，可降低编码器复杂度。

Abstract

Improve on the matrix filling rule of the integer DCT transform radix

and get a new type of integer transform radix

called variety integer DCT transform radix. Filter the numerous of variety integer DCT transform radix

get some optimum radix

and apply to MPEG4 coding and decoding experiment

the analysis results of test data show that the normalized matrix of variety integer DCT transform radix have similar de-correlation characteristic with the original DCT matrix

and can replace functions of the integer DCT transform radix in image and video coding . because variety integer DCT transform can be implemented by rapid butterfly algorithm completely

and can be implemented by hardware easily

applying to image and video coding

can reduce the complexity of coder and decoder greatly.

关键词

Keywords

references

WU Junqin and LI Yanli. A New Type of Integer DCT Transform Radix and its Rapid Algorithm[C] International Conference on Electric Information And Control Engineering (ICEICE). Wuhan,china:[s.n.],2011(2):1063-1066. [2] 王中元等．整数DCT变换中变换基的通用生成算法[J]．中国图象图形学报，2008,13（6）：1061-1064．[3] 毕厚杰．新一代视频压缩标准——H.264/AVC[M]．北京：人民邮电出版社，2005．[4] 田晓华等．视频编码中整数变换的优化设计[J]．计算机应用，2004,24（5）：85-87.[5] 戴声奎等．一种无乘法的整数DCT快速实现方法[J]．微电子学与计算机，2008,25（5）：11-13．[6] Rui Su, Guizhong Liu, Tongyu Zhang. Fast mode decision algorithm for intra prediction in H.264/AVC with integer transform and adaptive threshold [J]. Signal, Image and Video processing. 2007,1(1):11-27.[7] Jun Xin, Anthony Vetro, Huifang Sun. Coverting DCT Coefficients to H.264/AVC Transform Coefficients. Lecture Notes in computer Science [J].2005,3332:939-946.[8] Reeba Korah, J-Raja Paul Perinbam. FPGA Implementation of Integer Transform and Quantizer for H.264 Encoder [J]. Journal of signal processing systems. 2008,53(3):261-269.

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De-Correlation Characteristic Analysis of Variety Integer DCT Transform Radix

Related Author

WU Jun-qin

LIU Hao

LI Yan-li

Related Institution

Faculty of Information Engineering, Jiangxi University of Science and Technology

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