A script used to generate the spectral correspondence figure in my DPhil thesis, as used in Radar Odometry [1], first described in [2]:
[1] S. H. Cen and P. Newman, “Precise ego-motion estimation with millimeter-wave radar under diverse and challenging conditions,” in 2018 IEEE International Conference on Robotics and Automation (ICRA), 2018, pp. 6045–6052.
[2] M. Leordeanu and M. Hebert, “A Spectral Technique for Correspondence Problems Using Pairwise Constraints,” in Computer Vision, IEEE International Conference on, 2005, vol. 2, pp. 1482–1489.