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Application of a New Measuring Method to Large Size Measurement in an Automobile Panel

International Journal of Plant Engineering and Management 2009年第2期14卷 78-83页

作者： ZHANG De-hai LIANG Jin GUO Cheng School of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 China

In view of the automobile panel＇s features of complex shapes, the higher requirements of appearance surface quality, and the more accurate mechanical model for CAE simulation etc, a kind of measurement method for large size measurement was presented. The method was composed of digital close-range industrial photogrammetry technology and computer binocular vision technology, it could measure workpieces quickly and precisely. First, XJ- TUDP software, which was a kind of photogrammetry software, figured out un-coded points and coded-points which fixed on the surface of a large part and took a solid base for the fusion of many pieces point clouds. Second, based on XJTUOM, which was a kind of 3D dense point cloud optical measure software, imported global landmarks points came from xjtudp into XJTUOM, and point clouds can be assembled automatically. 3D data of the object surface may be acquired precisely by means of this method. Finally, an automobile door was taken for example and the experimental data was combined so we can see that the developed system possesses better accuracy and it can ad- dress the feature of a large workpiece.

关键词： photogrammetry automobile panel xjtudp software XJTUOM software

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