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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 1, Iss. 11 — Nov. 20, 2003
  • pp: 641–644

A novel algorithm for automatic localization of human eyes

Liang Tao, Juanjuan Gu, and Zhenquan Zhuang  »View Author Affiliations


Chinese Optics Letters, Vol. 1, Issue 11, pp. 641-644 (2003)


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Abstract

Based on geometrical facial features and image segmentation, we present a novel algorithm for automatic localization of human eyes in grayscale or color still images with complex background. Firstly, a determination criterion of eye location is established by the prior knowledge of geometrical facial features. Secondly, a range of threshold values that would separate eye blocks from others in a segmented face image (i.e., a binary image) are estimated. Thirdly, with the progressive increase of the threshold by an appropriate step in that range, once two eye blocks appear from the segmented image, they will be detected by the determination criterion of eye location. Finally, the 2D correlation coefficient is used as a symmetry similarity measure to check the factuality of the two detected eyes. To avoid the background interference, skin color segmentation can be applied in order to enhance the accuracy of eye detection. The experimental results demonstrate the high efficiency of the algorithm and correct localization rate.

© 2005 Chinese Optics Letters

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.5010) Image processing : Pattern recognition
(330.1880) Vision, color, and visual optics : Detection

Citation
Liang Tao, Juanjuan Gu, and Zhenquan Zhuang, "A novel algorithm for automatic localization of human eyes," Chin. Opt. Lett. 1, 641-644 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-11-641


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