发明名称 |
Apparatus for extracting pattern features |
摘要 |
An apparatus is presented for extracting configurational features of an object formed by a number of surfaces with a two-dimensional laser pattern. Changes in the shape can be tracked, and speedy three-dimensional measurements are made possible in a small memory area without requiring parameter adjustment. The device comprises a two-dimensional laser pattern generating device which projects laser light in a desired two-dimensional pattern configuration, a three-dimensional position calculating device which synchronizes the timing of the laser light illumination with the timing of the detection of two-dimensional points. Three-dimensional coordinates of a surface point are rapidly calculated, then the surface parameters are determined by the three-dimensional positions of a number of points (three points or more). A pattern information generating device varies the pattern to be projected in accordance with the surface parameters so obtained, and a pattern recognition device controls the movements of a robot in accordance with variations in configuration based on the edge lines, vertexes and other features determined by a number of plane surfaces.
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申请公布号 |
US5870490(A) |
申请公布日期 |
1999.02.09 |
申请号 |
US19960697603 |
申请日期 |
1996.08.27 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
TAKAHASHI, TOMOICHI;TATEISHI, KAZUYOSHI;WATABE, AKINORI |
分类号 |
G01B11/24;G05B19/37;G06K9/00;G06T1/00;G06T7/00;(IPC1-7):G06K9/46 |
主分类号 |
G01B11/24 |
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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