发明名称 |
GEOMETRIC FEATURE EXTRACTING DEVICE, GEOMETRIC FEATURE EXTRACTING METHOD, STORAGE MEDIUM, THREE-DIMENSIONAL MEASUREMENT APPARATUS, AND OBJECT RECOGNITION APPARATUS |
摘要 |
A geometric feature extracting device comprising: first input means for inputting a three-dimensional shape model of a measurement object; generation means for generating two-dimensional parameter planes corresponding to curved surface patches that configure the three-dimensional shape model; first calculation means for calculating normal directions to points on the curved surface patches; holding means for holding the parameter planes and the normal directions in association with each other; second input means for inputting an observation direction used to observe the measurement object from an observation position; selection means for selecting regions in each of which the normal direction and the observation direction satisfy a predetermined angle condition from the parameter planes; and second calculation means for calculating geometric features on three-dimensional shape model corresponding to regions selected by the selection means as geometric features that configure geometric feature regions on the three-dimensional shape model, which are observable from the observation position.
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申请公布号 |
US2012294534(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201113575994 |
申请日期 |
2011.03.09 |
申请人 |
WATANABE DAISUKE;KOBAYASHI KAZUHIKO;CANON KABUSHIKI KAISHA |
发明人 |
WATANABE DAISUKE;KOBAYASHI KAZUHIKO |
分类号 |
G06K9/46 |
主分类号 |
G06K9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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