Thin slices of head movements during problem solving reveal level of difficulty.

Bart Joosten Marije van Amelsvoort Emiel Krahmer Eric O. Postma

Published in: AVSP (2011)

Keyphrases

head movements
eye gaze
cross ratio
three dimensional
facial expressions
higher level
eye movements
gaze estimation
artificial intelligence
image retrieval
state space
vision system
multi modal
eye tracking
head motion