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Estimation of Person Height and 3D Location using Stereo Tracking System  

Ko, Jung Hwan (인하공업전문대학 메카트로닉스과)
Ahn, Sung Soo (명지전문대학 정보통신과)
Publication Information
Journal of Korea Society of Digital Industry and Information Management / v.8, no.2, 2012 , pp. 95-104 More about this Journal
Abstract
In this paper, an estimation of person height and 3D location of a moving person by using the pan/tilt-embedded stereo tracking system is suggested and implemented. In the proposed system, face coordinates of a target person is detected from the sequential input stereo image pairs by using the YCbCr color model and phase-type correlation methods and then, using this data as well as the geometric information of the stereo tracking system, distance to the target from the stereo camera and 3-dimensional location information of a target person are extracted. Basing on these extracted data the pan/tilt system embedded in the stereo camera is controlled to adaptively track a moving person and as a result, moving trajectory of a target person can be obtained. From some experiments using 780 frames of the sequential stereo image pairs, it is analyzed that standard deviation of the position displacement of the target in the horizontal and vertical directions after tracking is kept to be very low value of 1.5, 0.42 for 780 frames on average, and error ratio between the measured and computed 3D coordinate values of the target is also kept to be very low value of 0.5% on average. These good experimental results suggest a possibility of implementation of a new stereo target tracking system having a high degree of accuracy and a very fast response time with this proposed algorithm.
Keywords
Person Height; Stereo Tracking; 3D Location;
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1 P. Danielson, "Video surveillance for the rest of us: proliferation, privacy, and ethics education," 2002. International Symposium on Technology and Society, 2002(ISTAS'02), vol. 1, no. 1, 2002, pp. 162-167.
2 James Black, Tim Ellis, "Multi-camera image measurement and correspondence," Measurement, vol. 32, 2002, pp. 61-71.
3 장대식, "응용개발자를 위한 사용자 중심 얼굴검출 시스템 설계 및 구현," 디지털산업정보학회논문지, vol. 6, no. 4, 2010, pp. 161-170.
4 P. Gurfil, N. J. Kasdin, "Two-step optimal estimator for three dimensional target tracking," Proc. of the American control conference, vol. 1, 2002, pp. 209-214.
5 J. S. Park, M. J. Chung, "Path planning with uncalibrated stereo rig for image-based visual servoing under large pose discrepancy," IEEE Transaction on Robotics and Automation, vol. 19, 2003, pp. 250-258.   DOI
6 D. Chai and A. Bouzerdoum, "A Bayesian approach to skin color classification in YCbCr color space," IEEE Region Ten Conference, vol. 2, no. 1, 2000, pp. 421-424.
7 정도영, 홍기천, "얼굴 특징 정보를 이용한 향상된 눈동자 추적을 통한 졸음운전 경보 시스템 구현," 디지털산업정보학회논문지, vol. 5, no. 2, 2009, pp. 167-176.
8 J. H. Ko and E. S. Kim, "Stereoscopic Video Surveillance System for Detection of Target's 3D Location Coordinates and Moving Trajectorie s," Optics Communications, vol. 191, 2006, pp. 100-10.
9 http://www.svsvistek.com
10 http://www.metricanet.com