一种改进的双项自适应总体变差去噪模型

Computer Engineering(2012)

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Abstract
研究经典总体变差去噪模型及其改进的自适应去噪模型,提出一种基于预处理图像局部信息的双项自适应模型.利用空间自适应保真项缓解二阶非线性滤波对细节的过度平滑,通过自适应正则化项减少阶梯效应,使数值更稳定和收敛.实验结果表明,与原方法相比,改进方法具有更好的鲁棒性,在噪声较高的情况下仍能取得较好的去噪效果.
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Key words
adaptive,variation,double-term,de-noising
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