Studies on the computer-eye of rice transplant robot (Part 2). Detection of rice plants line using Hough transformation Chen BingQi; Watanabe, K.; Tojo, S.; Ai, F.; Huang, B.K. Journal of the Japanese Society of Agricultural Machinery 59(3): 23-28 1997 https://eurekamag.com/research/002/968/002968208.php