Abstract: Image is analysed under multi-scale filtering in Canny algorithm frame. Scale multiplication is defined by filter responses multiplication of two different scales. The modulus and orientation is determined by the similarity of adjacent scales. A threshold value is chosen to eliminate false edge. The edge is obtained after non-maximum supression. Experimental results show the superior performance of the proposed algorithm in noise restrain and edge localization than the traditional Canny algorithm.

Key words: edge detection, scale multiplication, Canny algorithm

摘要： 在Canny算法框架下，对图像进行多尺度滤波分析。定义尺度乘积函数为2个不同尺度滤波器的响应乘积，由相邻尺度近似性确定乘积后的幅值和相角，再选择阈值剔除伪边缘，由非极大值抑制得到图像边缘。实验结果表明，算法比传统Canny算子在噪声抑制和边缘定位方面具有更优的性能。

关键词: 边缘检测, 尺度相乘, Canny算法

CLC Number: 

• TP391