Bao Paul, Zhang Lei, Wu Xiaolin
Nanyang Technological University, Singapore.
IEEE Trans Pattern Anal Mach Intell. 2005 Sep;27(9):1485-90. doi: 10.1109/TPAMI.2005.173.
The technique of scale multiplication is analyzed in the framework of Canny edge detection. A scale multiplication function is defined as the product of the responses of the detection filter at two scales. Edge maps are constructed as the local maxima by thresholding the scale multiplication results. The detection and localization criteria of the scale multiplication are derived. At a small loss in the detection criterion, the localization criterion can be much improved by scale multiplication. The product of the two criteria for scale multiplication is greater than that for a single scale, which leads to better edge detection performance. Experimental results are presented.
在Canny边缘检测框架下分析了尺度乘法技术。将尺度乘法函数定义为检测滤波器在两个尺度下响应的乘积。通过对尺度乘法结果进行阈值处理，将边缘图构建为局部最大值。推导了尺度乘法的检测和定位准则。在检测准则上有少量损失的情况下，通过尺度乘法可以显著提高定位准则。尺度乘法的两个准则的乘积大于单个尺度的乘积，这导致了更好的边缘检测性能。给出了实验结果。
