IMAGE CODING USING SHORT WAVELET-BASED CONTOURLET TRANSFORM

被引：1
|
作者：
Hung, Chao-Hsiung [1 ]
Hang, Hsueh-Ming [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu, Taiwan
来源：
2008 15TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-5 | 2008年
关键词：
Contourlet transform; bit-plane coding; directional decomposition; directional filter;
D O I：
10.1109/ICIP.2008.4712397
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we propose two enhanced elements on the wavelet-based contourlet transform (WBCT) image coding scheme. A short-length 2-D non-separable directional filter bank is designed for significantly reducing the calculation. New zero coding context models are designed to improve coding efficiency. Experiments show that the proposed compression scheme produces better visual quality images, particularly, with fine and regular texture at low rates. The short-length directional filter bank performs nearly as well as their long-length counterpart.*
引用
收藏
页码：2884 / 2887
页数：4
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