An analysis of facial expression recognition under partial facial image occlusion

Kotsia, Irene ORCID: https://orcid.org/0000-0002-3716-010X, Buciu, Ioan and Pitas, Ioannis (2008) An analysis of facial expression recognition under partial facial image occlusion. Image and Vision Computing, 26 (7) . pp. 1052-1067. ISSN 0262-8856 [Article]

Abstract

In this paper, an analysis of the effect of partial occlusion on facial expression recognition is investigated. The classification from partially occluded images in one of the six basic facial expressions is performed using a method based on Gabor wavelets texture information extraction, a supervised image decomposition method based on Discriminant Non-negative Matrix Factorization and a shape-based method that exploits the geometrical displacement of certain facial features. We demonstrate how partial occlusion affects the above mentioned methods in the classification of the six basic facial expressions, and indicate the way partial occlusion affects human observers when recognizing facial expressions. An attempt to specify which part of the face (left, right, lower or upper region) contains more discriminant information for each facial expression, is also made and conclusions regarding the pairs of facial expressions misclassifications that each type of occlusion introduces, are drawn.

Actions (login required)

View Item

Statistics

DownloadsShow export options

Export as CSVXMLJSON

Activity Overview

6 month trend

0Downloads

6 month trend

499Hits

Additional statistics are available via IRStats2.