Oulette, Robert, and Kotaro Hirasawa. “Automated Map Comparison Using Non-Invariant Fourier Descriptors”. Journal of Automation, Mobile Robotics and Intelligent Systems 6, no. 1 (August 2, 2013): 15–21. Accessed July 17, 2025. https://jamris.d.tomp.pl/index.php/JAMRIS/article/view/205.