Grid-walking test refers to the method to assess the locomotion accuracy of a rat/mouse as described in PMID: 22142899.

It's an ardous work to stop the video recordings again and again to count the number of foot-slips and, if tired, researchers can make mistakes. In that case I'm looking for some automated and objective evaluation softwares. It can be open source or commercial. Any tech savvy? I believe in the era of machine learning there must be solutions out there.