. Author manuscript; available in PMC: 2016 Jul 21.

Published in final edited form as: IEEE Int Conf Autom Face Gesture Recognit Workshops. 2015 May;1:10.1109/FG.2015.7163113. doi: 10.1109/FG.2015.7163113

TABLE I.

Summary of the three datasets specification used in this research

Dataset	BlackDog	Pitt	AVEC
Language	English (Australian)	English (American)	German
Classification	Severely Depressed/Healthy Control	Severe/Low depression	Severe/Low depression
Number of subjects per class	30	19	16
Males-Females	30-30	14-24	9-23
Procedure	open ended questions interview	HRSD clinical interview	human-computer interaction experiment (story telling)
Symptom severity measure	QIDS-SR	HRSD	BDI
Mean score (range)	19 (14–26)	Severe:22.4 (17–35)/Low:2.9 (1–7)	Severe:35.9 (30–45)/Low:0.6 (0–3)
Equivalent QIDS-SR Score [33]	19 (14–26)	Severe:17 (13–26)/Low:2 (1–5)	Severe:20 (16–22)/Low:1 (0–2)
Total Duration (minutes)	509	355.9	33.2
Average duration/subject (in min)	8.4 (± 4.4)	9.4 (± 4.3)	1.0 (± 0.8)
Hardware	1 camera + 1 microphone	4 cameras + 2 microphones	1 web camera + 1 microphone
Audio sampling rate	44100 Hz	48000 Hz	44100 Hz
Video sampling rate	30 fps	30 fps	30 fps