This is a planar tracker programme based on CPM.And it's a preliminary one,there are lots of problems to solve.
The CPM algorithm is described detailedly in [1].
The original impletation is not for OpenCV.Therefore,a re-impletation [2] is used in the planar tracker.
The test data is from [3].And the page of this project is [4]
[1] Y. Hu, R. Song, and Y. Li. Efficient coarse-to-fine PatchMatch for large displacement optical flow. In CVPR, 2016.
[2] https://github.com/gishi523/coarse-to-fine-patchmatch
[3] Planar Object Tracking in the Wild: A Benchmark P. Liang, Y. Wu, H. Lu, L. Wang, C. Liao, and H. Ling. Proc. of IEEE Int'l Conference on Robotics and Automation (ICRA), 2018
[4] Planar Object Tracking in the Wild: A Benchmark http://www.dabi.temple.edu/~hbling/data/POT-210/planar_benchmark.html