用线性滤波器处理核医学脏器图片．造成图像边缘不清楚，从而影响了诊断．本 文用一种非线性统计滤波器——中值滤波和平均滤波相结合来处理核医学脏器图像． 这种方法综合了平均滤波和中值滤波对噪声的抑制特性和保留图像边缘的特性．考虑 到图像的局部起伏．引入Ａｎｓｃｏｍｂｅ变换使图像的泊桑噪声与信号近似无关。最后 对实际的核医学脏器图片作了处理，并与线性滤波处理结果做了对比．收到了满意的 效果． Treatment of nuclear medicine organs with linear filter. Causing the image edge is not clear, thus affecting the diagnosis. In this paper, a non-linear statistical filter-median filter and average filter are combined to process nuclear medical organ images. This method combines the noise suppression characteristics of average filtering and median filtering with preserving the image edge characteristics. Take into account the local ups and downs of the image. Anscombe transform is introduced to make the image’s Poisson’s noise independent of the signal’s approximation. Finally, the actual image of nuclear medicine was processed and compared with the results of linear filtering. Received a satisfactory result.