Algorithm 1

1. Result: Face attention binary value, ear value 2. Inputs: Facial landmarks X-Y coordinates 3. horizontal_left_distance = Euclidean distance between landmarks 2 and 31 4. horizontal_right_distance = Euclidean distance between landmarks 31 and 16 5. yaw = absolute value of the division between horizontal_left_distance and horizontal_right_distance 6. If yaw is greater than 1, then yaw = the reciprocal of yaw 7. yaw_attention_threshold = 0.4 8. If yaw is less than yaw_attention_threshold, face_attention = 0, otherwise face_attention = 1 9. horizontal_distance_pitch = Euclidean distance between landmarks 28 and 31 10. vertical_distance_pitch = Euclidean distance between landmarks 37 and 40 (if not null) or 43 and 46 11. pitch = absolute value of the division between horizontal_distance_pitch and vertical_distance_pitch 12. pitch_attention_threshold = 5 13. If pitch is less than pitch_attention_threshold, face_attention = 1, otherwise face_attention = 0 14. ear_attention_threshold = 0.10 15. If ear is less than ear_attention_threshold AND pitch is greater than pitch_attention_threshold, face_attention = 0