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<p><it>Abstract</it>—First Sight, a vision system in labeling the outline of a moving human body, is proposed in this paper. The emphasis of First Sight is on the analysis of motion information gathered solely from the outline of a moving human object. Two main processes are implemented in First Sight. The first process uses a novel technique to extract the outline of a moving human body from an image sequence. The second process, which employs a new human body model, interprets the outline and produces a labeled two-dimensional human body stick figure for each frame of the image sequence. Extensive knowledge of the structure, shape, and posture of the human body is used in the model. The experimental results of applying the technique on unedited image sequences with self-occlusions and missing boundary lines are encouraging.</p>
Coincidence edge, difference picture, human body, human body model, labeling, model, motion, outline, pose, posture, ribbon, stick figure.

M. K. Leung and Y. Yang, "First Sight: A Human Body Outline Labeling System," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 17, no. , pp. 359-377, 1995.
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