An improved face recognition algorithm using quantized DCT coefficients

Qiu Chen, Koji Kotani, Feifei Lee, Tadahiro Ohmi

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

Abstract

In this paper, we propose an improved face recognition algorithm using quantized Discrete Cosine Transform (DCT) coefficients for facial image recognition. For adding spatial information of the face to improve recognition performance, a region-division (RD) method is utilized. The facial area is firstly divided into 5 regions relating to the facial parts (forehead, eye, nose, mouth, jaw). Then feature vectors of each facial part are generated by using DCT coefficients in low frequency domains. Codevector referred count histogram, which is utilized as a very effective personal feature value, is obtained by Vector Quantization (VQ) processing. Recognition results with different parts are first obtained separately and then fused by weighted averaging. Experimental results show face recognition using proposed feature vector is very efficient.

Original languageEnglish
Title of host publicationProceedings - 7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011
Pages329-333
Number of pages5
DOIs
Publication statusPublished - 2011 Dec 1
Event7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011 - Dijon, France
Duration: 2011 Nov 282011 Dec 1

Publication series

NameProceedings - 7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011

Other

Other7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011
CountryFrance
CityDijon
Period11/11/2811/12/1

Keywords

  • DCT coefficients
  • Face recognition
  • Vector quantization (VQ)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Signal Processing

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  • Cite this

    Chen, Q., Kotani, K., Lee, F., & Ohmi, T. (2011). An improved face recognition algorithm using quantized DCT coefficients. In Proceedings - 7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011 (pp. 329-333). [6120668] (Proceedings - 7th International Conference on Signal Image Technology and Internet-Based Systems, SITIS 2011). https://doi.org/10.1109/SITIS.2011.62