Inventors:
Ioannis Pavlidis - Minneapolis MN, US
James A. Levine - Rochester MN, US
Assignee:
Honeywell International Inc. - Morristown NJ
International Classification:
G01K 13/00, A61B 5/02
US Classification:
374 45, 374121, 374129, 600407
Abstract:
Thermal image data of at least a region of a face of a person is provided. The thermal image data is transformed to blood flow rate data which includes a slope representative of the change of blood flow rate over time. The slope is compared to a slope threshold to determine a physiological state of the person. For example, it may be determined whether the person is deceptive or non-deceptive, e. g. , deceptive with respect to an elicited response from the person.