Statistical approach of edge detection
一种基于统计的图像边缘检测方法

A statistical approach of edge detection was presented. First, this approach determined gradient vector and variancecovariance. Second,it made use of non-maxima suppression to every gradient vector. Last, local standardization for gradient threshold base on statistical approach was computed and use it for edge detection. To compare with well-known edge detectors, this approach not only detects real boundary of image, but also effectively suppresses the false edge of image. This new approach receives a good effect.