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基于轮廓波变换的图像压缩感知处理

Journal of Military Communications Technology(2012)

Cited 23|Views2
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Abstract
由于轮廓波变换(contourlet transform)能够更好地对图像进行稀疏表示。文章提出了基于轮廓波变换的图像压缩感知算法。将图像进行轮廓波变换后得到图像的稀疏表示,采用随机高斯矩阵对高频系数进行测量,实现数据压缩,然后采用正交匹配追踪算法恢复系数,再进行轮廓波反变换重构图像。实验结果表明,与原压缩感知算法相比,该算法有效地提高了重构图像质量的主观视觉效果和峰值信噪比。
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Key words
contourlet transform,Gaussian random matrices,compressed sensing,image reconstruction
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