Acta Optica Sinica, Volume. 24, Issue 7, 978(2004)

Novel Connection Method Based on Virtual Cylinder for Three-Dimensional Surface Measurement

He Haitao, Guo Hongwei, Yu Yingjie, and Chen Mingyi
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    The multi-view (i.e. multi-aperture) overlapping scanning connection technique in cylindrical coordinates is mainly used in connecting measured surface of quasi-rotating objects. It comes into difficulty in surface measurement of object with non-single revolving axis, or whose quasi-revolving axis is comparatively far from the coordinates axis. A novel connection method is presented on the basis of the principle of the virtual cylinders to solve this problem. This extended connection method on the basis of the virtual cylinders for three-dimensional shape measurement is described, the algorithms how to calculate the approximative radius of the virtual cylinders and the coordinates of its revolving axis are given, and the coordinates translation formula is deduced based on the virtual cylinders. The accuracy of this method has been theoretically verified by computer simulation. And the experimental measurement result of an automobile headlamp reflector reassures experimentally that the method is effective and feasible for three-dimensional complex shape connection, especially to obtain the connected surface tested from different views.

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    He Haitao, Guo Hongwei, Yu Yingjie, Chen Mingyi. Novel Connection Method Based on Virtual Cylinder for Three-Dimensional Surface Measurement[J]. Acta Optica Sinica, 2004, 24(7): 978

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Apr. 7, 2003

    Accepted: --

    Published Online: May. 25, 2010

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