A DCT-Based embedded image coder

被引：114

作者：

Xiong, ZX ^{[1
]}

Guleryuz, OG ^{[1
]}

Orchard, MT ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT ELECT ENGN,URBANA,IL 61801

来源：

IEEE SIGNAL PROCESSING LETTERS | 1996年 / 3卷 / 11期

关键词：

D O I：

10.1109/97.542157

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：

Since Shapiro published his work on embedded zerotree wavelet (EZW) image coding [1], there have been increased research activities in image coding centered around wavelets, In this letter, we first point out that the wavelet transform is just one member in a family of linear transformations, and the discrete cosine transform (DCT) can also be coupled with an embedded zerotree quantizer, We then present such an image coder that outperforms any other DCT-based coder published in the literature, including that of the Joint Photographers Expert Group (JPEG), Moreover, our DCT-based embedded image coder gives higher peak signal-to-noise ratios (PSNR's) than the quoted results of Shapiro's EZW coder.

引用

页码：289 / 290

页数：2

共 7 条

[1]

CROUSE M, 1995, P ICASSP 95 DETR MI

[2]

LI J, 1996, P ICIP 96 LAUS SWITZ

[3]

Pennebaker WB., 1992, JPEG STILL IMAGE DAT

[4] A new, fast, and efficient image codec based on set partitioning in hierarchical trees [J].