| 摘要 |
PROBLEM TO BE SOLVED: To suppress the influence of a self-cutoff between body parts and to estimate the posture of a person with high precision by estimating the position of an elbow by a neural network when a temporary position of the elbow obtained by three-dimensional restoration does not have specific relation with a finger point. SOLUTION: A chromakey background separation device 80 separates background images from images photographed by three CCD video cameras 64 and outputs a front elevation image, a side elevation image, and a plane image of a person. An image processing computer 82 restores the feature points of the person in three dimensions by processing the front elevation image, side elevation image, and plane image outputted from the chromakey background separating device 80 to estimate the three-dimensional attitude of the person. Namely, when the outline is accurately extracted, the position of the elbow is estimated according to the features of the body. If the outline is not accurately extracted, on the other hand, the precision of the position of the elbow is low, so the position of the elbow is estimated by the neural network.
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