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基于Shearlet变换的非局部均值地震噪声压制
王金刚1,2(), 安勇1,2(), 徐振旺3
Seismic noise suppression using non-local means algorithm based on the Shearlet transform
WANG Jin-Gang1,2(), AN Yong1,2(), XU Zhen-Wang3

图1. 不同方向的sobel算子模版

Fig.1. Sobel operators templates in different directions