Basic Study of an Evaluation that Uses the Center of Gravity of a Facial Thermal Image for the Estimation of Autonomic Nervous Activity

摘要

In this paper, we propose using the temperature-centroid of a facial thermal image as a new index to evaluate the Mental Work Load (MWL). The existing evaluation methods using thermal images are non-contact mental-stress-evaluation methods that measure a change in the temperature of the regions around the nose, which is caused by MWL. However, automatic evaluation of mental load is difficult because identifying a part of the nose automatically from the thermograph is difficult. In this paper, we have focused on developing a solution to this problem that combines temperature with the coordinates of the thermal image.