3D Tracking of Mouse Locomotion Using Shape-From-Silhouette Techniques

Locomotion is commonly used as a method for evaluating the effectiveness of interventions and treatments for recovery of function after spinal cord injury in rodent models. However, most conventional approaches to assess recovery rely on a series of semi-quantitative visual inspections. In the present study, we propose a volume intersection approach to obtain 3D information about the position of the center of volume and locomotion speed from multiview video cameras. The addition of quantitative measures can be used to improve precision and repeatability within and across testing sites, and further assist researchers in behavioral evaluations of locomotion.