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개선된 스네이크를 이용한 얼굴 특징요소의 윤곽 추출

Contour Extraction of Facial Features Based on the Enhanced Snake

  • 이성수 (배재대학교 정보통신공학과) ;
  • 장종환 (배재대학교 정보통신공학과)
  • 투고 : 2015.02.02
  • 심사 : 2015.07.27
  • 발행 : 2015.08.31

초록

얼굴 요소의 윤곽을 추출하는 대표적인 방법 중의 하나는 스네이크다. 스네이크는 간단하고 빠르지만 초기 윤곽 및 개체 형태에 따라 성능이 결정된다. 본 논문에서는 이러한 문제를 해결하기 위해 스네이크 세그먼트의 중간 위치에 스네이크 포인트를 추가하는 방법으로 윤곽을 더 정확하게 추출할 수 있는 개선된 스네이크를 제안한다. 제안한 방법은 6개의 입과 눈 실험 영상에 적용하여 Greedy 스네이크보다 RSD가 2.8%에서 5.8% 정도 감소하였다. 특히 RSD 감소는 대부분 심한 굴곡이 갖는 윤곽 영역에서 얻음으로써 더 정확한 윤곽 추출을 실험을 통해 확인하였다.

One of typical methods for extracting facial features from face images may be snake. Although snake is simple and fast, performance is very much affected by the initial contour and the shape of object to be extracted. In this paper, the enhanced snake is proposed to extract better facial features from 6 lip and mouth images as snake point is added to the midpoint of snake segment. It is shown that RSD of the proposed method is about 2.8% to 5.8% less than that of Greedy snake about 6 test face images. Since lesser RSD is especially obtained for contours with highly concavity, the contour is more accurately extracted.

키워드

참고문헌

  1. Kee Young Moon, "Special Report: Biometrics," TTA Journal, Vol.98, pp.38-47, Jun., 2014.
  2. Changbeom Lee, Dohynag Kim, JangsumBaek, and Hyukro Park, "A Study on Face Recognition based on Partial Least Squares," Journal of Information Processing Systems, Vol. 13-B, No.4, pp.393-400, Aug., 2006.
  3. H. Moon and S. H. Kim, "Face Recognition: A Survey," Korea Information Processing Society Review, Vol.20, No.3, pp.14-21, May, 2013.
  4. M. Kass, A. Wktkin, and D. Terzopoulos, "Snake: Active Contour Models," International Journal of Computer Vision, Vol.1, No.4, pp.321-331, 1987. https://doi.org/10.1007/BF00133570
  5. D. J. Williams and M. Shah, "A Fast Algorithm for Active Contours and Curvature Estimation," Computer Vision, Graphics, and Image Processing, Vol.55, pp.14-26, 1992.
  6. Kyunghee Lee and Hyeran Byun, "Facial Feature Detection and Facial Contour Extraction Using Snakes," Journal of Computing Science and Engineering, Vol.27, No.7, pp.731-735, Jul., 2000.
  7. Kap-Ho Seo, Won Kim, Changmok Ho, and Ju-Jang Lee, "Face Detection and Facial Feature Extraction Using Color Snake," Proceedings of the 2002 IEEE International Symposium on Industrial Electronics(ISIE 2002), Vol.4, pp.457-462, Jul., 2002.
  8. Kyong-Pill Min, Jun-Chun Chun, and Koo-Rack Park, "Detection of Facial Region and Features from Color Images based on Skin Color and Deformable Model," The KSII Transaction on Internet and Information Systems, Vol.3, No.6, pp.13-24, Dec., 2002.
  9. Vytautas Perlibakas, "Automatical Detection of Face Features and Exact Face Contour," Pattern Recognition Letters, Vol.24, pp.2977-2985, 2003. https://doi.org/10.1016/S0167-8655(03)00158-2
  10. Xiong Bing, Yu Wei, and Charayahphan Chareonsak, "Face Contour Extraction Using Snake," 2004 IEEE International Workshop on Biomedical Circuits and Systems, pp.S3.2-5 S.3.2-8, 2004.
  11. Kwok-Wai Wan, Kin-Man Lam, and Kit-Chong Ng, "An Accurate Active Shape Model for Facial Feature Extraction," Pattern Recognition Letters, Vol.26, Issue.15, pp.2409-2423, Nov., 2005. https://doi.org/10.1016/j.patrec.2005.04.015
  12. Shin-Hyung Kim and JongWhan Jang, "A Snake-based Segmentation Algorithm for Object with Boundary Concavities," Journal of Information Processing Systems, Vol.13, No.4, pp.1-8, Aug., 2006.
  13. SunHee Weon, KeunSoo Lee, and Gyeyoung Kim, "Contour Extraction of Facial Components Using Template based Snake Algorithm," International Conference on Computational Science and Its Applications(2007 ICCSA), LNCS 4705, Part 1, pp.1034-1047, 2007.
  14. Huang Hanmin and Jiang Zhen, "Application of an Improved Snake Model in Face Location Based on Skin-Color," Proceedings of the 7th World Congress on Intelligent Control and Automation, pp.6897-6901, Jun., 25-27, 2008.
  15. Siew Wen Chin, Kah Phooi Seng, and Li-Minn Ang, "Enhanced Snake Model and Modified H_${\infty}$ for Lips Contour Detection and Tracking," 2010 International Conference on Computer Application and Industrial Electronics(ICCAIE 2010), pp.659-664, Kuala Lumpur, Malaysia, Dec., 5-7, 2010.
  16. Qihui Wang, Lijun Xie, Bo Zhu, Tingjun Yang, and Yao Zheng, "Facial Features Extraction based on Active Shape Model," Journal of Multimedia, Vol.8, No.6, Dec., 2013.
  17. U. A. A. Niroshika and Ravinda G. N. Meegama, "Active Contours with Prior Corner Detection," World Academy of Science, Engineering and Technology, Vol.6, pp.642-646, Feb., 2012.