An algorithm for extracting groove rail area based on improved Hough transformZhongbin Fang, Xiaojie Huang, Kangquan Ye, Jing Ji, Qiantong Wu, Xizhe Ma and Yongjun XieMATEC Web Conf., 336 (2021) 02025DOI: https://doi.org/10.1051/matecconf/202133602025