Image analysis – Applications – 3-d or stereo imaging analysis
Reexamination Certificate
2011-01-11
2011-01-11
Ahmed, Samir A. (Department: 2624)
Image analysis
Applications
3-d or stereo imaging analysis
C382S103000
Reexamination Certificate
active
07869646
ABSTRACT:
A method for estimating three-dimensional positions of human joints includes the steps of: a) marker-free motion capturing a moving figure for obtaining a multiview 2D image of the moving figure, and extracting a 2D feature point corresponding to a bodily end-effector; b) three-dimensionally matching the 2D feature point corresponding to the bodily end-effector, and recovering the 3D coordinates of the bodily end-effector; c) generating a 3D blob of the bodily end-effector, generating a virtual sphere with a radius that is a distance from a center of the 3D blob to a joint, and projecting the virtual sphere onto the obtained multiview 2D image of the moving figure; and d) detecting a coinciding point of a surface of the projected virtual sphere and the multiview 2D image of the moving figure, and estimating a 3D position corresponding to the coinciding point as a 3D position of the joint.
REFERENCES:
patent: 6088042 (2000-07-01), Handelman et al.
patent: 6226388 (2001-05-01), Qian et al.
patent: 7257237 (2007-08-01), Luck et al.
patent: 2003/0215130 (2003-11-01), Nakamura et al.
patent: 05-298422 (1993-11-01), None
patent: 1019980060109 (1998-10-01), None
patent: 1020000017755 (2000-04-01), None
patent: 10-2000-0074633 (2000-12-01), None
patent: 10-2001-0102881 (2001-11-01), None
patent: 10-2002-0035386 (2002-05-01), None
patent: 10-2002-0095867 (2002-12-01), None
patent: 1020030068444 (2003-08-01), None
patent: 1020040008379 (2004-01-01), None
patent: 1020040055310 (2004-06-01), None
Kim et al: “MIMIC: real-time maker-free motion capture system to create an agent in the virtual space”, Proc., ICCE'02, IEEE, 2002.
Cheng, S., et al., “Hand Pose Estimation Using Expectation-Constrained-Maximization from Voxel Data.” 2004.Hand Pose Estimation Technical Report 2004, CVRP Laboratory, pp. 1-7.
Azarbayejani, A., et al., “Real-Time Self-Calibrating Stereo Person Tracking Using 3-D Shape Estimation from Blob Features.” 1996.IEEE Proceedings of ICPR 1996, pp. 627-632.
Park, C.J., et al., “Real-Time Marker-free Motion Capture System Using Blob Feature Analysis and Inverse Kinematics.” Feb. 2003.FVC2003, vol. 9, No. 1.
Matusik, W., et al., “Image-Based Visual Hulls.” 2000.Siggraph 200, pp. 369-374.
Cheung, K., et al., “Shape-Form-Silhouette Across Time Part I: Theory and Algorithms.” 2005.International Conference of Computer Vision, vol. 62, No. 3, pp. 221-247.
Wren, C., et al., “Pfinder: Real-time tracking of the human body.” 1996.Automatic Face and Gesture Recognition, pp. 51-56.
Youngmo Han; 3D Pose Estimation of a Human Arm for Human-Computer Interaction Application of Mechanical Modeling Techniques to Computer Vision Paper of The Institute of Electronics Engineers of Korea, vol. 42, Issue 4, pp. 11-18, Jul. 2005.
Hun-Tae Choi; “3D Stereoscopic Image Generation Technology” www.kipi.or.kr, 2001.
Kim Hong-seok
Kim Hyun-Bin
Lee In-Ho
Lee Jae-Kwang
Park Chang-Joon
Ahmed Samir A.
Electronics and Telecommunications Research Institute
Ladas & Parry LLP
Li Ruiping
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