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| Best distance of terrestrial 3D laser scanning point cloud registration |
1.College of Civil Engineering,Tongji University,Shanghai 200092,China;2.Department of Civil Engineering,Anhui Institute of Architecture and Industry,Hefei,Anhui 230601,China）
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Abstract The point cloud registration principle was discussed.Based on this principle,the error model of point cloud registration was deduced.From the model,the point error could be calculated,which is an index of point cloud registration.In order to evaluate the effect of scanning distance change of terrestrial 3D laser scanner on point cloud registration error,an experiment program was designed to test precisely different distance in range accuracy of terrestrial 3D laser scanner.According to bull＇s eye extracted and the error model of point cloud registration,point cloud registration precision of different distance was obtained,which led to the best accuracy of point cloud registration.The results show that this point cloud registration error model and the experimental method are excellent.
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2009, Vol. 30 
