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A DCT-Based embedded image coder

delete1996-11-01
delete137
PRE
AI
Z
Zixiang Xiong *
O
Onur G. Guleryuz
M
M.T. Orchard
DOI：10.1109/97.542157delete
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Abstract

Abstract

En 中文
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.
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Journal

IEEE Signal Processing Magazine cover
IEEE Signal Processing Magazine
IF:
9.6
Papers:
1.1W
Citations:
1.7W

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