Combination of manual and non-manual features for sign language recognition based on conditional random field and active appearance model

Hee Deok Yang, Seong Whan Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Sign language recognition is the task of detection and recognition of manual signals (MSs) and non-manual signals (NMSs) in a signed utterance. In this paper, a novel method for recognizing MS and facial expressions as a NMS is proposed. This is achieved through a framework consisting of three components: (1) Candidate segments of MSs are discriminated using an hierarchical conditional random field (CRF) and Boost-Map embedding. It can distinguish signs, fingerspellings and non-sign patterns, and is robust to the various sizes, scales and rotations of the signer's hand. (2) Facial expressions as a NMS are recognized with support vector machine (SVM) and active appearance model (AAM), AAM is used to extract facial feature points. From these facial feature points, several measurements are computed to distinguish each facial component into defined facial expressions with SVM. (3) Finally, the recognition results of MSs and NMSs are fused in order to recognize signed sentences. Experiments demonstrate that the proposed method can successfully combine MSs and NMSs features for recognizing signed sentences from utterance data.

Original languageEnglish
Title of host publicationProceedings of 2011 International Conference on Machine Learning and Cybernetics, ICMLC 2011
Pages1726-1731
Number of pages6
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Machine Learning and Cybernetics, ICMLC 2011 - Guilin, Guangxi, China
Duration: 2011 Jul 102011 Jul 13

Publication series

NameProceedings - International Conference on Machine Learning and Cybernetics
Volume4
ISSN (Print)2160-133X
ISSN (Electronic)2160-1348

Other

Other2011 International Conference on Machine Learning and Cybernetics, ICMLC 2011
CountryChina
CityGuilin, Guangxi
Period11/7/1011/7/13

Keywords

  • Sign language recognition
  • active appearance model
  • conditional random held
  • manual sign
  • non-manual sign
  • support vector machine

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Human-Computer Interaction

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  • Cite this

    Yang, H. D., & Lee, S. W. (2011). Combination of manual and non-manual features for sign language recognition based on conditional random field and active appearance model. In Proceedings of 2011 International Conference on Machine Learning and Cybernetics, ICMLC 2011 (pp. 1726-1731). [6016973] (Proceedings - International Conference on Machine Learning and Cybernetics; Vol. 4). https://doi.org/10.1109/ICMLC.2011.6016973