Edge detection algorithm of radar range image based on new Canny algorithm
DAI Wen-zheng
ZHENG Liang-ren
YANG Yong
Abstract：In order to solve the problem of noise filtering and edge detection in the range image of laser radar, an edge detection algorithm of range image in combination with both improved loop filtering algorithm and adaptive Canny algorithm was proposed.The noise of range image was suppressed through the improved loop filtering, and the detail feature information of the image was preserved at the same time of removing the noise.The traditional Canny algorithm was improved through the gradient magnitude calculation, non maximum suppression and automatic threshold selection, which overcomed such defaults as the noise effect and fuzzy edge detection.The results show that the proposed algorithm can reliably detect the edge of range image, the information entropy and standard deviation index data of detected results are superior to those of the traditional Sobel algorithm and Laplace algorithm, and the proposed algorithm can better meet the actual needs of range image edge detection of laser radar.
Keywords：edge detectionnoise suppressionloop filteringlaser radarrange imageCanny algorithmgradientthreshold
Publication Date：2017-07-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 428-432 )