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一种感兴趣区图像压缩编码算法 被引量:6

Region of interest image coding algorithm
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摘要 提出了一种感兴趣区图像压缩编码算法,该算法采用不同的小波和比特率对感兴趣区和背景区分开进行小波变换和编解码,结合SPIHT,该算法可灵活地控制感兴趣区和背景区之间的相对压缩质量,由于小波变换时采用了BNC17/11小波和CDF9/7小波,该算法进一步提高了感兴趣区图像压缩编码算法的压缩性能。同时该算法无需计算感兴趣区掩膜。 A ROI (Region Of Interest) image coding algorithm is proposed.By using different wavelets and bit rate to transform and code the original ROI and BG(BackGround) separately,combined with the SPIHT(Set Partitioning In Hierarchical Trees),the compression quality between ROI and BG can be controlled flexibly.Since the BNC17/11 wavelet and CDF9/7 wavelet are employed to perform the wavelet transform,the capability of ROI image compression algorithm is improved.Further,the proposed algorithm needs not to calculate the ROI mask.
出处 《计算机工程与应用》 CSCD 北大核心 2007年第32期69-71,共3页 Computer Engineering and Applications
基金 国家自然科学基金(No.60572011)。~~
关键词 感兴趣区 BNC17/11小波 CDF9/7小波 比特率控制 Regions Of Interest(ROI ) BNC 17/11 wavelet CDF9/7 wavelet bit rate control
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参考文献10

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