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摘要: 研究了圆形感兴趣区域, 推导了相应的掩码计算公式, 将多级树集合分裂算法 (Set partitioning in hierarchical trees, SPIHT) 加以改进, 得到适用于圆形感兴趣区域的图像压缩算法. 实验结果表明, 本文提出的圆形感兴趣区域掩码计算公式简单实用, 改进后的压缩算法效果明显.
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关键词:
- 圆形感兴趣区域 /
- 多级树集合分裂算法(SPIHT) /
- 图像压缩 /
- 掩码 /
- 小波变换
Abstract: Circle shaped region of interest (ROI) is studied and corresponding mask formulas are deduced. The set partitioning in hierarchical trees (SPIHT) algorithm is improved for circle shaped ROI. Experimental results show that the presented formulas and algorithm are practical and effective.-
Key words:
- Circle shaped region of interest (ROI) /
- SPIHT /
- image compression /
- mask /
- wavelet transform
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