Fractal image encoding based on adaptive search

被引：0
|
作者：
Berthe, K [1 ]
Yang, Y [1 ]
Fang, BH [1 ]
机构：
[1] Beijing Univ Sci & Technol, Informat Engn Sch, Beijing 100083, Peoples R China
来源：
APOC 2002: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; WIRELESS AND MOBILE COMMUNICATIONS II | 2002年 / 4911卷
关键词：
fractal optimization; bit allocation; adaptive search; image compression;
D O I：
10.1117/12.480536
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Finding the optimal algorithm between an efficient encoding process and the rate distortion is the main research in fractal image compression theory. A new method has been proposed in this paper based on the optimization of the Least-Square Error and the orthogonal projection. A large number of domain blocks can be eliminated, in order to speed-up fractal image compression. Moreover, since the rate-distortion performance of the most fractal image coders is not satisfactory, a n efficient bit allocation algorithm to improve the rate distortion is also proposed. Some implementation and comparison have been done with the feature extraction method to prove the efficiency of the proposed method.
引用
收藏
页码：38 / 45
页数：8
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