Fig. 2

a A frame captured from a C57BL/6 mouse where the paws have a “collision type II.” The SLIC results with 5000, 10,000, and 15,000 superpixels for the marked red region in a are illustrated in b, d, and f, respectively. The marked red region is selected to demonstrate a better resolution of SLIC segmentation around the mouse body; this box does not show the “sub-image” to reduce the time required for generating superpixels. Panel c shows a “collision type I” for the front paw. Note that a similar collision can occur for the hind paw. The calibration object with 25 markers is seen in e