发明名称 |
Method and apparatus for calibrating three-dimensional space for machine vision applications |
摘要 |
A calibration apparatus for calibrating three-dimensional space for a machine vision system and a method for using the calibration apparatus for calibrating the machine vision system are disclosed. The calibration apparatus comprises pairs of indicators, such as lights, mounted on a frame, each pair of lights separated by a known horizontal distance. The calibration apparatus may be mounted on the back of a vehicle that moves the apparatus through a roadway scene at a known speed. A machine vision system tracks the calibration apparatus, specifically the pairs of lights mounted on the frame, and maps the pixel space of the machine vision system to three-dimensional space.
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申请公布号 |
US5467634(A) |
申请公布日期 |
1995.11.21 |
申请号 |
US19950422263 |
申请日期 |
1995.04.14 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BRADY, MARK J.;CERNY, DARIN G. |
分类号 |
G01B11/02;G01P21/02;G08G1/04;(IPC1-7):G01C25/00 |
主分类号 |
G01B11/02 |
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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