点噪声 meaning in Chinese

spot noise

Their advantages are : can cut down the " mosaic effect " distinctly , and at the same time , let the image deblur , omit the gray skip which is similar with the spot noise too
其优点是：可同时显著地减少放大马赛克效应、图像模糊和类点噪声的灰度跃变等问题，显著提高了电视墙放大图像质量。
First , we must filter the image to reduce noises , this process includes two phase : one is using the nearest neighbor middle filter ( knnmf ) to reduce the isolated noises , the other is using gauss filter to remove white noises
首先对图像进行滤波去除噪声。滤波包括两个阶段：一是进行最近邻中值滤波( knnmf ) ，以去除孤立点噪声，再进行高斯平滑，去除白噪声。