Movie 1

Antennae tip detection and marking.
A tracking trial (631 frames) was background subtracted (green), cropped, and aligned. A search window was defined in the area above the head centroid and limited to pixels with values greater than a dynamic threshold (purple). Within the search area, the longest paths from the head point were used to find the antenna tips (crosses). Data were checked for errors and manually corrected.

Journal of Experimental Biology ; doi: 10.1242/jeb.185124