Caltech FlyTracker

FlyTracker aims to track the pose (position, orientation, size, wing- and leg positions) of multiple flies and maintain their identities throughout a video. In addition to trajectories, it outputs features (such as velocity, facing angle to other fly, and wing angles) useful for behavior analysis.

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Sample results

Tracks the articulated pose of each fly (video from Kenta Asahina, Salk Institute)

Tracks multiple flies (video from Kristin Branson, Janelia Research Campus)

Can be applied to other model organisms (video from