发明名称 |
METHODS AND SYSTEMS FOR ULTRA-PRECISE MEASUREMENT AND CONTROL OF OBJECT MOTION IN SIX DEGREES OF FREEDOM BY PROJECTION AND MEASUREMENT OF INTERFERENCE FRINGES |
摘要 |
A system and method for active visual measurement and servo control using laterally sampled white light interferometry (L-SWLI) for real-time visual tracking of six-degree-of-freedom (6 DOF) rigid body motion with near-nanometer precision. The visual tracking system is integrated with a 6 DOF motion stage to realize an ultra precision six-axis visual servo control system. Use of L-SWLI obtains the complete pose of the target object from a single image frame to enable real-time tracking. Six-degree-of-freedom motions are obtained by measuring the fringe pattern on multiple surfaces of the object or from a single surface with additional information gained from conventional image processing techniques. |
申请公布号 |
WO2007011970(A3) |
申请公布日期 |
2008.06.05 |
申请号 |
WO2006US27932 |
申请日期 |
2006.07.18 |
申请人 |
OHIO STATE UNIVERSITY |
发明人 |
KIM, JUNG H.;MENQ, CHIA-HSIANG |
分类号 |
G01B9/02 |
主分类号 |
G01B9/02 |
代理机构 |
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