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基于球坐标的非线性小波变换图像压缩编码算法

Keywords: 非线性小波变换(小波收缩),球坐标变换,双曲线收缩,球坐标子带分解.

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Abstract:

利用小波变换的3个高频分量之间相关特性,提出了基于球坐标变换的非线性小波变换图像压缩编码的方法.在小波收缩中,采用双曲线收缩处理球坐标下的径向分量以提高重建图像的质量.实验结果表明此算法在压缩比和重建质量方面都取得较好的效果.

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