| 摘要 |
PROBLEM TO BE SOLVED: To enhance physical object measuring accuracy with respect to a technique for space-discretely measuring the three-dimensional shape of a physical object as a set of a plurality of vertices by space-discretely referring, with respect to a plurality of fictive reference lines crossing a line direction, to a two-dimensional image obtained by projecting a pattern beam having at least one bright part extending in the line direction onto the object having a boundary with the outside. SOLUTION: Boundary lines of a taken image are extracted from the taken image based on the taken image obtained by imaging the physical object (S401). The number of times the boundary lines respectively crossing a plurality of fictive calculation reference lines that cross the line direction is space-discretely calculated as the density of boundary lines as to the respective reference lines based on the extracted boundary lines (S402 to S405). The pitch between the plurality of reference lines are variably determined based on the calculated density (S406). COPYRIGHT: (C)2006,JPO&NCIPI
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