Fig. 6: Comparison of human visual observations and the system.
From: Development of a 3D tracking system for multiple marmosets under free-moving conditions
a The time the marmosets stayed in a particular location was compared between visual observations and those by the system. The marmosets stayed in four locations: upper bunk, middle floor, lower bunk, and lower floor. Dotted lines indicate regression lines. b Each cell represented 30 s. Blue cells: Visual observation detected grooming at least once in 30 s. Yellow cells: Visual observation detected the close distance between two marmosets. Red cells: The system detected grooming by the intensity exceeding a threshold value.
