Drunk person identification using thermal infrared images
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Date
Authors
Koukiou, Georgia
Anastassopoulos, Vassilis
Journal Title
Journal ISSN
Volume Title
Publisher
Inderscience Enterprises Ltd Publishers
Abstract
Drunk person identification is carried out using thermal infrared
images. Two different approaches are proposed for distinguishing a drunk
person by means of radiometric values on its face. The features used in the first
approach are simply the pixel values of specific points on the face of the
person. It is proved that the cluster of a specific person moves in the feature
space as the person consumes alcohol. Fisher linear discriminant approach is
used for space dimensionality reduction. The feature space is found to be of
very low dimensionality. The majority of the clusters moves towards the same
direction and the feature space can easily be separated into the ‘sober’ and
‘drunk’ regions. Thus the ‘drunk’ feature space is introduced. In the second
approach thermal differences between various locations on the face are
evaluated and their value is monitored. It was found that specific areas in the
face of a drunk person present an increased thermal illumination. These areas
are the best candidates for identifying a drunk person. The concept behind this
second proposed approach relies on a physiology-based face identification
procedure.
Description
Keywords
Biometrics, Drunk person verification, Thermal infrared signatures