A nice paper entitled “Visual Tracking Using Sparse Coding and Earth Mover's Distance”, authored by Gang Yao and Ashwin Dani (University of Connecticut), I had the pleasure to edit for Frontiers in Robotics and AI – Vision Systems Theory, Tools and Applications. Thanks a lot to the reviewers! It took quite a bit to do the job, but it was worth it.

Have a look at it, it's open access: https://www.frontiersin.org/articles/10.3389/frobt.2018.00095/full#h12