空天预警研究学报2024，Vol.38Issue(1)：16-20,5.DOI:10.3969/j.issn.2097-180X.2024.01.004
基于改进LOG算子的雷达图像边缘检测算法
Radar image edge detection algorithm based on improved LOG operator
李平 1张勇 1田忠彬 2吕西昆 1王晴晴1
作者信息
- 1. 空军预警学院,武汉 430019
- 2. 联勤保障部队,武汉 430019
- 折叠
摘要
Abstract
The edge contour of fixed ground clutter in radar images plays an important role in moving target detection.In order to solve the problem that the traditional LOG edge detection algorithm is sensitive to noise in radar image edge detection,which is easy to affect the extraction of image edge contour information,an improved LOG edge detection algorithm is proposed.Firstly,the improved mean filtering and bilateral filtering is used to smooth and denoise the image.Then Laplacian operator is used to calculate the second order directional deriva-tive,and the zero crossing point is calculated to obtain the edge position information of the image,so as to obtain the continuous and complete edge contour of the ground object.Finally,comparative experiments are conducted on the radar images processed by the original LOG and the improved LOG algorithm.The experimental results show that,in the strong clutter environment,compared with the original LOG algorithm,the improved LOG algo-rithm can improve the edge detection accuracy and the continuity of the image edge,thus able to increase the de-tection probability of the radar targets.关键词
雷达图像/高斯-拉普拉斯算子/边缘检测/均值滤波/双边滤波Key words
radar image/LOG operator/edge detection/mean filtering/bilateral filtering分类
信息技术与安全科学引用本文复制引用
李平,张勇,田忠彬,吕西昆,王晴晴..基于改进LOG算子的雷达图像边缘检测算法[J].空天预警研究学报,2024,38(1):16-20,5.
