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Discriminating angry, happy and neutral facial expression: a comparison of computational models

  • Aruna Shenoy
    ,
  • Sue Anthony
    ,
  • Ray Frank
    ,
  • Neil Davey
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
 Peer-review

Abstract

Recognizing expressions are a key part of human social interaction, and processing of facial expression information is largely automatic for humans, but it is a non-trivial task for a computational system. The purpose of this work is to develop computational models capable of differentiating between a range of human facial expressions. Raw face images are examples of high dimensional data, so here we use two dimensionality reduction techniques: Principal Component Analysis and Curvilinear Component Analysis. We also preprocess the images with a bank of Gabor filters, so that important features in the face images are identified. Subsequently the faces are classified using a Support Vector Machine. We show that it is possible to differentiate faces with a neutral expression from those with a happy expression and neutral expression from those of angry expressions and neutral expression with better accuracy. Moreover we can achieve this with data that has been massively reduced in size: in the best case the original images are reduced to just 5 components with happy faces and 5 components with angry faces.

Publication Information

Output type

Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
 Peer-review

Original language

English

Publication milestones

  • Published - 01/01/2009

Publication status

Published - 01/01/2009

Publisher

Springer, Japan, India, Australia, Germany, United States, United Arab Emirates, Austria, Switzerland, Italy, China, United Kingdom, Netherlands, Brazil, France, Singapore

ISBN (Print)

9783642039690

ISBN (Electronic)

9783642039690

Publication IDs

  • handle.net: 10547/279218
  • Scopus: 78049370531

Host publication title

nan

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Related Event

Title

Engineering Applications of Neural Networks - Proceedings 11th International Conference, EANN 2009

Description

Engineering Applications of Neural Networks - Proceedings 11th International Conference, EANN 2009

Event type

Conference

Date

01/01/2009