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The human body contour vector
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When refinement of the skeleton after vectorization, first from the chain code starting point and the direction of the point as a benchmark for tracking the chain code has been changed direction so far, and take the chain code change direction when inflection point as before; then this inflection point as a starting point, the tracking process is repeated until the end of the chain code so far, and the whole point of inflection coordinates obtained (including the starting point coordinate chain code) is saved; then the final contour curve fitting line segments to remove excess inflection point, i.e., the completion of the outline quantization. Vector backbone after thinning process is determined by the following two parameters to control the threshold value: a length threshold parameter TL, the inflection point is used to control the degree of density, and the other is an angle threshold parameter TH, fitting a straight line to control direction.
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