The improved genetic algorithms for digital image correlation method
We present a global optimization method, called the genetic algorithms (GAs), for digital image/speckle correlation (DISC). The new algorithms do not involve reasonable initial guess of displacement and deformation gradient and the calculation of second-order spatial derivatives of the digital images, which are important challenges in practical implementation of DISC. The performance of a GA depends largely on the selection of the genetic operators. We test various operators and propose optimal operators. The algorithms are then verified using simulated images and experimental speckle images.
作 者： 唐晨 刘铭 闫海青 张桂敏 陈湛青 作者单位： 唐晨,刘铭,闫海青,张桂敏(Department of Applied Physics, University of Tianjin, Tianjin 300072)陈湛青(Department of Mechanical Engineering and Automation, Harbin Institute of Technology, Harbin 150001)
刊 名： 中国光学快报(英文版) ISTIC EI 英文刊名： CHINESE OPTICS LETTERS 年，卷(期)： 2004 2(10) 分类号： 关键词：