Table A1.

Summary of the database construction settings and database contents.

Item	Description
Number of Subjects	50
Age of Subjects	20–39 y
Gender Ratio of Subjects	1:1
Nationality of Subjects	Korea
Number of Experimental Stages	4
Number of Stress States	3
Number of Videos per Subject	4
Camera Used for Recording	Kinect v2
Image Resolution	1920 × 1080
Data Acquisition Rate	24 frames/s
Total Number of Images	2,020,556
Total Length of Recorded Videos	1403 min
Illumination	Keep the lights constantly bright
Background	Only clean, white walls
Head Orientation	Almost straight ahead
Occlusion	Hair or accessories do not cover the face (excluding glasses)