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《Chinese Journal of Scientific Instrument》 2003-02
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Automatic Recognition for the Position and Orientation of Parts in Intelligent CMMs

Ma Xinhui Zhang Guoxiong Wang Jianli Liu Shugui (State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China)  
A method for automatic recognition of the position and orientation of parts based on machine vision and CAD 3D model is proposed Virtual image matching is used to confirm the position and orientation of the part By perspective imagery,virtual images of the CAD 3D model are produced according to each pose of the part Real image generated by CCD camera is matched with virtual images of the part The result of matching is used to confirm the relation of the part coordinates and the machine coordinates This method is implemented on 3D coordinate measuring machines Experiments are given to verify the method and its precision is analyzed
【Fund】: 国家自然科学基金 ( 5 9675 0 83 ;5 0 0 75 0 64 )资助项目
【CateGory Index】: TH72
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【References】
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1 Yang Shimin Wang Chunhai(School of Precision Instrument and Opto Electronics Eng., Tianjin University) Ding Hongyan(Dept. of Civil Eng.);MEASUREMENT OF VIBRATIONS WITH SIX DEGREES OF FREEDOM USING A VISUAL CAMERA[J];Journal of Tianjin University;1997-03
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1 KUANG Cui-fang,FENG Qi-bo,ZHANG Zhi-feng,LIU Bin(School of Sciences,Beijing Jiaotong University,Beijing 100044,China);Methods for simultaneously measuring six freedom degrees of objects[J];Laser Technology;2005-05
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