Table 2. Video acquisition parameters for Sessions 1–8.

Kinect here abbreviates the RGB sensor of a Microsoft Kinect for Xbox One; Chameleon stands for Chameleon 3 U3-13Y3C (FLIR Systems, OR, USA), with either 10-30mm Varifocal Lens H3Z1014 (Computar, NC, USA) set approximately to 15 mm, or 3.8-13mm Varifocal Lens Fujinon DV3.4x3.8SA-1 (Fujifilm, Japan) set to 13 mm. Color resolution for both cameras is 8 bit per channel. For Chameleon 3 aperture was fully opened, automatic white-balance was disabled.

Session	Sensor	Frame rate, fps	Video resolution, pixels	Distance to monkey face, cm	Session duration, s	Epoch duration, s
1	Kinect	30	1920 × 1080	25	420	34.1
2	Kinect	30	1920 × 1080	50	307	34.1
3	Chameleon, 10-30mm	50	1280 × 1024	30	275	20.5
4	Chameleon, 10-30mm	100	640 × 512	30	160	20.5
5	Chameleon, 10-30mm	50	1280 × 1024	30	204	20.5
6	Chameleon, 10-30mm	50	640 × 512	30	93	20.5
7	Chameleon, 10-30mm	50	1280 × 1024	30	500	20.5
8	Chameleon, 3.8-13mm	50	1280 × 1024	30	140	20.5