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Global Measurement Method for Large-Scale Components Based on a Multiple Field of View Combination
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نویسنده
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zhang y. ,liu w. ,lan z. ,zhang z. ,ye f. ,zhao h. ,li x. ,jia z.
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منبع
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journal of sensors - 2017 - دوره : 2017 - شماره : 0
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چکیده
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Considering the limited measurement range of a machine vision method for the three-dimensional (3d) surface measurement of large-scale components,a noncontact and flexible global measurement method combining a multiple field of view (fov) is proposed in this paper. the measurement system consists of two theodolites and a binocular vision system with a transfer mark. the process of multiple fov combinations is described,and a new global calibration method is proposed to solve the coordinate system unification issue of different instruments in the measurement system. in addition,a high-precision image acquisition method,which is based on laser stripe scanning and centre line extraction,is discussed to guarantee the measurement efficiency. with the measured 3d data,surface reconstruction of large-scale components is accomplished by data integration. experiments are also conducted to verify the precision and effectiveness of the global measurement method. © 2017 yang zhang et al.
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آدرس
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key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China, key laboratory for precision and non-traditional machining technology of the ministry of education,dalian university of technology,dalian, China
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Authors
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