Costs and advantages of shape-adaptive wavelet transform for region-based image coding

被引：0
|
作者：
Cagnazzo, M [1 ]
Poggi, G [1 ]
Verdoliva, L [1 ]
机构：
[1] Univ Naples Federico II, Dipartimento Ingn Elettron & Telecomun, I-80125 Naples, Italy
来源：
2005 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), VOLS 1-5 | 2005年
关键词：
image coding; region-based coding; shape-adaptive wavelet transform;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Region-based encoding techniques have been long investigated for the compression of still images and video sequences and have recently gained much popularity, as testified by the object-based nature of the MPEG-4 video coding standard. This work aims at analyzing costs and advantages of implementing such an approach by shape-adaptive wavelet transform and shape-adaptive SPIHT. The analysis of several performance measures in a number of experiments confirm the potential of wavelet-based region-based approach, and provide insight about what performance gains and losses can be expected in various operative conditions.
引用
收藏
页码：3641 / 3644
页数：4
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