A VQ-based fast face recognition algorithm using optimized codebook

Qiu Chen, Koji Kotani, Fei Fei Lee, Tadahiro Ohmi

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

In this paper, we present a VQ-based fast face recognition algorithm using an optimized codebook. Previously, Chen et al. [16] proposed a novel codebook design method based on the systematic classification and organization of code patterns abstracted from facial images for reliable face recognition. In this paper, an improved codebook design method is proposed. Combined by a systematically organized codebook based on the classification of code patterns and another codebook created by Kohonen's Self-Organizing Maps (SOM), an optimized codebook consisted of 2x2 codevectors for facial images is generated. We demonstrate the performance of our algorithm using publicly available AT&T database containing variations in lighting, posing, and expressions. Compared with the algorithms employing original codebook or SOM codebook separately, experimental results show face recognition using the optimized codebook is more efficient. The highest average recognition rate of 98.2% is obtained for 40 persons' 400 images of AT&T database. A table look-up (TLU) method is also proposed for the speed up of the recognition processing in this paper. By applying this method in the quantization step, the total recognition processing time achieves only 28 msec, enabling real-time face recognition.

本文言語English
ホスト出版物のタイトルProceedings of the 2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
ページ298-303
ページ数6
DOI
出版ステータスPublished - 2008 12 1
イベント2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR - Hong Kong, China
継続期間: 2008 8 302008 8 31

出版物シリーズ

名前Proceedings of the 2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
1

Other

Other2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
国/地域China
CityHong Kong
Period08/8/3008/8/31

ASJC Scopus subject areas

  • 計算理論と計算数学
  • コンピュータ ビジョンおよびパターン認識

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