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指出了美国冈萨雷斯教授(Rafael C.Gonzalez)提出的一个基于自适应局部噪声消除滤波器算法存在的不足,并提出了一种改进的自适应局部噪声消除滤波新算法.通过比较可以发现改进的算法要比原算法的均方误差emse降低了一个数量级,而且各种信噪比SNR、SNRm、PSNR都将比原算法提高了1/4.计算机仿真实验证明了改进的自适应局部噪声消除滤波算法是有效的.
Points out the shortcomings of an algorithm based on adaptive local noise cancellation proposed by Professor Rafael C. Gonzalez in the United States and proposes an improved adaptive local noise cancellation filter algorithm. The improved algorithm is one order of magnitude less than the mean square error (EMF) of the original algorithm, and the SNR, SNRm and PSNR of all kinds of SNRs are all improved by a quarter compared with the original ones. Computer simulation results show that the improved adaptive local noise Eliminating the filtering algorithm is valid.