On multiresolution image restoration
On multiresolution image restoration
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多分辨率图像恢复
DOI：
10.1109/icpr.1994.577123
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
M. Petrou
中科院分区：
文献类型：
--
作者：
G. Nicholls;M. Petrou
本文认为，使用多分辨率方法进行图像恢复的正确方法是通过重整化群变换（RGT）来粗化图像的后验分布。总结了RGT的主要结果并指出了RGT的难点。它提出了一种替代变换，该变换不具有 RGT 的全部属性，但保留了成本函数的全局最小值。本文的主要贡献是证明了这种变换的一些理论性质，这些性质表明了它对图像处理的重要性和有用性。
This paper argues that the correct way to use a multiresolution approach to image restoration is to coarsen the posterior distribution of the image via the renormalization group transformation (RGT). It summarises the main results on RGT and points out the difficulties with it. It proposes an alternative transformation which does not have the full properties of the RGT but which preserves the global minimum of the cost function. The major contribution of the paper is to prove some theoretical properties of this transformation which show its significance and usefulness to image processing.