吉林大学学报（理学版）2012，Vol.50Issue(4)：740-744,5.
一种改进的基于Canny算子边缘检测算法
An Improved Edge Detection Algorithm Based on Canny Operator
摘要
Abstract
Based on the improved Canny operator, the modified templates of size 3×3 were extended to the ones of size 5×5 via half-pixel interpolation method, and the method of maximum value of normalized autocorrelation was used to determine the edge direction so as to mitigate the broken edges or false edges due to the effects of noise. In the experiment, we used receiver operating characteristic curves to evaluate the performance of the algorithm. The results show that the modified Canny operator improves the effect of the detection, for it can accurate the edge direction while reducing the probability of false edge points, especially for that of the images rich in line edge.关键词
Canny算子/边缘检测/半像素插值/归一化自相关/ROC曲线Key words
Canny operator/ edge detector/ half-pixel interpolation/ normalized autocorrelation/ ROC curve分类
信息技术与安全科学引用本文复制引用
赵岩,周百灵,陈贺新..一种改进的基于Canny算子边缘检测算法[J].吉林大学学报（理学版）,2012,50(4):740-744,5.基金项目
国家自然科学基金(批准号:60872072 （）
60832002)、国家自然科学基金国际合作项目(批准号:60911130128)和吉林大学杰出青年基金(批准号:200905018). （批准号:60911130128）
