Multiple same-sized block mapping for recursive fractal image coding

Multiple same-sized block mapping for recursive fractal image coding
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用于递归分形图像编码的多个相同大小的块映射

DOI:
10.1117/1.1428741
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发表时间:
2002-02
影响因子:
1.3
通讯作者:
Baozong Yuan
Baozong Yuan
中科院分区:
工程技术4区
文献类型:
--
作者:
Yao Zhao;Hongxing Wang;Baozong Yuan

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在传统的分形图像编码(FIC)方案中,域块被限制为范围块的两倍大,以确保其迭代解码阶段的收敛。然而,这种约束限制了分形编码器在自然图像的相同分辨率尺度下利用自相似性。为了克服这个缺点,提出了一种使用相同大小的范围和域块的新方案。此外,在编码过程期间使用将编码结果反馈回输入的递归方案来提高解码图像质量。实验结果表明我们的方法比 Fisher 的 FIC 有了显着的改进。
In conventional fractal image coding (FIC) schemes, domain blocks are constrained to be twice as large as range blocks to ensure the convergence of their iterative decoding stage. However, this constraint has limited the fractal encoder to exploit the self-similarity at the same resolution scale of natural images. To overcome the shortcoming, a novel scheme using same-sized range and domain blocks is proposed. Further, a recursive scheme feeding the coding results back to the input during the encoding procedure is used to improve the decoded image quality. Experimental results show our method gives significant improvement over Fisher's FIC.
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期刊: IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
影响因子: --
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