直线模板去噪法中的加权算子研究  

Study of the Weighted Operator Used in the Method of De-Noise Based on Linear Template

作　　者：喻道远[1] 洪海涛[1] 

机构地区：[1]上海交通大学电信学院仪器系,上海200240

出　　处：《测控技术》2007年第7期76-78,共3页Measurement & Control Technology

摘　　要：图像中存在带状和块状噪声时,用传统去噪方法会提取出假边缘,使用直线模板去噪法可以有效去除上述假边缘。为了增强直线模板去噪能力,引入了加权算子。同时为了减少其他带状和块状噪声的影响,提出了对模板中心邻近区域灰度差值归一化,并设计了灰度正态分布模型下的加权直线算子。经过处理实际钻针图像,证实该算法能较好地去噪。When using usual methods to detect object＇ s edges, zonal or cluster noise may cause the extraction of false edges, but using ＂the method of de-noise based on linear template＂ ban eliminate these false edges. So the weighted operator is put forward, in order to enhance the de-noise capability of linear template. To reduce the effect of other zonal or cluster noise, the normalization of the difference of adjacent pixels＇ gray value is provided. And the design of the weighted linear operator is given when the gray value follows the normal distribution. A drill-pin＇ s image is processed by using the method, and the result shows that the method can eliminate the noise effectively.

关 键 词：去噪 加权算子 直线模板 正态分布 

分 类 号：TB11[理学—数学]