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检索条件"主题词=fractal image coding"
99 条 记 录,以下是91-100 订阅
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Efficient Quadtree based fractal image coding Scheme in Wavelet Transform Domain *
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Journal of Southeast University(English Edition) 1998年 第1期14卷 35-40页
作者: 高西奇 洪波 张辉 何振亚 东南大学无线电工程系
This paper presents an efficient quadtree based fractal image coding scheme in wavelet transform domain based on the wavelet based theory of fractal image compression introduced by Davis. In the scheme, zerotrees of... 详细信息
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A HIGH SPEED ADAPTIVE fractal image coding ALGORITHM USING FLEXIBLE CLASSIFICATION TECHNIQUE
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Wuhan University Journal of Natural Sciences 1998年 第2期3卷 146-146页
作者: Zhang Liang Li Weihua Wang Qiao College of Computer Science and Technology Wuhan University Wuhan China
Traditionally, fractal image compression suffers from lengthy encoding time in measure ofhours. In this paper, combined with characteristlcs of human visual system, a flexible classification technique is proposed. Thi... 详细信息
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fractal image coding based on replaced domain pools
Fractal image coding based on replaced domain pools
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Visual Communications and image Processing 1998 Conference
作者: Harada, M Fujii, T Kimoto, T Tanimoto, M Nagoya Univ Grad Sch Engn Dept Informat Elect Chikusa Ku Nagoya Aichi 46401 Japan
fractal image coding based on Iterated Function System (IFS) has been attracting much interest because of the possibilities of drastic data compression It performs compression by using the self-similarity included in ... 详细信息
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Analysis of scaling-factor-quantization error in fractal image coding
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 1997年 第12期E80A卷 2572-2580页
作者: Lee, CH Kawamata, M Higuchi, T Tohoku Univ Grad Sch Informat Sci Sendai Miyagi 98077 Japan Tohoku Univ Grad Sch Engn Sendai Miyagi 98077 Japan
This paper proposes an analysis method of scaling-factor-quantization error in fractal image coding using a state-space approach with the statistical analysis method. It is shown that the statistical analysis method i... 详细信息
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State-space approach to roundoff error analysis of fractal image coding
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 1997年 第1期E80A卷 159-165页
作者: Lee, CH Kawamata, M Higuchi, T Graduate School of Information Sciences Tohoku University Sendai-shi 980-77 Japan Graduate School of Engineering Tohoku University Sendai-shi 980-77 Japan
Roundoff error due to iterative computation with finite wordlength degrades the quality of decoded images in fractal image coding that employs a deterministic iterated function system. This paper presents a state-spac... 详细信息
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Object based fractal coding
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OPTICAL ENGINEERING 1999年 第12期38卷 2029-2040页
作者: Kang, HS Kim, SD Lee, SW Korea Adv Inst Sci & Technol Dept Elect Engn Taejon 305701 South Korea
We present an object-based fractal coding scheme based on the partitioned iterative function system (PIFS) that is similar to the standard fractal image coding schemes. The partitioned blocks in our object-based fract... 详细信息
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A fast variance-ordered domain block search algorithm for fractal encoding
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IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 1999年 第2期45卷 275-277页
作者: Lee, SM Agcy Def Dev Taejon South Korea
A new fast fractal encoding algorithm based on the variances of image blocks is proposed. With the domain blocks sorted according to their variances, and the best matched domain block to a given range block is searche... 详细信息
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Adaptive fractal image coding in subband domain
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JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 1996年 第3期19卷 417-427页
作者: Chen, RJ Chieu, BC NATL TAIWAN INST TECHNOL DEPT ELECTR ENGN TAIPEI 106 TAIWAN NATL LIENHO COLL TECHNOL & COMMERCE DEPT ELECTR ENGN MIAOLI 360 TAIWAN
In this paper, we propose and evaluate a method for fractal image coding in the subband domain. The subband decomposition scheme acts as a classifier, which can efficiently reduce encoding time. The proposed fractal i... 详细信息
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A new affine transformation: Its theory and application to image coding
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1998年 第3期8卷 269-274页
作者: Zhao, Y Yuan, BZ No Jiaotong Univ Inst Informat Sci Beijing 100044 Peoples R China
The fractal image coding technique has attracted a degree of interest for its low bit rate. But the reconstructed image is of medium quality. This problem has prevented the fractal technique from being practically use... 详细信息
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