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基于Huber正则化二阶加速Richardson-Lucy湍流图像复原算法

, PP. 657-664

Keywords: 图像处理,迭代盲反卷积,矢量外推加速,Huber函数,正则化技术

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Abstract:

为了快速准确地恢复湍流退化图像,提出了Huber正则化Richardson-Lucy(R-L)加速迭代盲反卷积(IBD)算法。根据图像滤波处理结果,采用Huber函数自适应地选择一阶范数和二阶范数正则化约束,增加算法收敛速度同时提高图像细节和边界复原质量。引入基于泰勒级数的二阶矢量外推加速方法,进一步增加迭代的收敛速度。实验结果表明,采用提议的算法需要的迭代次数较少,适用于实时性要求较高的场合,复原图像的主客观质量均有所提高。

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