基于直方图包络的红外图像边缘检测  

Infrared image edge detection based on histogram envelop

作　　者：惠阿丽[1] 林辉[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《计算机工程与应用》2007年第22期87-88,112,共3页Computer Engineering and Applications

摘　　要：针对高压输电线路红外图像的特点提出一种基于直方图包络曲线的图像边缘检测新算法。为了抑制红外图像中噪声的影响,利用Savitzky-Golay(S-G)滤波器求取灰度直方图的包络曲线来平滑噪声,根据包络曲线的极值点对红外图像进行边缘提取。实验结果表明,该方法简单有效、定位精度高、优于传统的几种边缘提取算子。A new method for image edge detection based on envelope curve of histogram is proposed,aimed at the characteristics of high voltage transmission line.In order to inhibit noise influence on infrared image,envelope curve of histogram,get from Savitzky-Golay（S-G） filter,is used to smooth the image,and the edge of infrared image can be detected based on the extreme points of the envelope curve.Experimental results show that this new algorithm is simple and effective to detect whole contour and detail information ,and is better than other traditional operators.

关 键 词：红外图像 边缘提取 直方图 S-G滤波器 

分 类 号：TN911.73[电子电信—通信与信息系统]