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《Tool Engineering》 2014-11
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Structure Parameter Optimization of Line Structured Light Scanning Probe

Zhang Haiyan;Yu Liandong;Zheng Wenxing;Dong Zhao;School of Instrument Science and Opto - electronics Engineering,Hefei University of Technology;Hefei University of Technology;  
Line structured light scanning probe is widely used in reverse engineering,its measurement precision and reliability have an important influence on 3D reconstruction. This paper establishes mathematical model of line structured light scanning probe based on optical triangulation method. The transformation between imaging pixel coordinates and three- dimensional world coordinate is achieved by coordinate transformation and perspective imaging principle. The influence on measurement accuracy of structured light scanning probe structure parameters is analyzed and the measurement error model is derived. The effect of diffuse light intensity on structural parameters is analyzed and boundary conditions are determined by actual design needs. Simulation on optimization design of structural parameters displays an error less than 0.02 mm.
【Fund】: 国家自然科学基金(51375137);; 111引智基地项目(B12019)
【CateGory Index】: TH122
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