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- W2327199133 abstract "摘要: 恢复含乘性噪声的图像是当前图像处理的重要研究课题. 本文提出基于迭代重加权的各向异性全变差(Total variation, TV)模型. 新模型中, 假定乘性噪声服从Gamma分布. 正则项采用加权的各向异性全变差, 其中, 自适应权函数由期望最大(Expectation maximization, EM)算法得到. 新模型在有效去噪的同时, 较好地保留了图像的边缘和细节信息, 同时能够有效地抑制阶梯效应. 数值实验验证了新模型的效果. 关键词: 图像去噪 / 乘性噪声 / 期望最大算法 / 全变差 / 迭代重加权" @default.
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- W2327199133 date "2012-12-21" @default.
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- W2327199133 title "Iteratively Reweighted Anisotropic-TV Based Multiplicative Noise Removal Model" @default.
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