Strip Image Edge Detection Based on Ant Colony Algorithm
A novel method based on Ant colony algorithm (ACA) is proposed for detecting edges in strip image according to the fuzzy clustering ability of ACA. In this paper, we employ two feature-extraction elements, namely wavelet entropy and multiscale wavelet transform module gradient value to compose the characteristic vector of each pixel. To avoid the early convergence or stability in basic ACA, the evaporating coefficient is set to change dynamically with the number of valid paths the ants passed. Finally, we use ACA to cluster edges. Experimental results demonstrate the proposed algorithm possesses high convergence speed, low computing complexity and good noise restraining performance. In addition, the proposed algorithm also overcomes the randomicity of the searching process in basic ACA.
ant colony algorithm strip image characteristic vector edges
LIU Yue HU Shaoxing
Laboratory of 3D Laser scan & Industry Computer Tomography Beihang University School of Mechanical Engineering & Automation, Beihang University, Beijing, 100083
国际会议
北京
英文
2007-08-05(万方平台首次上网日期,不代表论文的发表时间)