3D Digital Measurement of Large Scale Objects Based on Viscous Target
For 3D digital measurement of large scale objects, image mosaic is the key technology to achieve whole measurement for a small measuring field of the sensor unit. A viscous-target-based three-dimensional image mosaic technology is proposed. The screw theory is introduced to realize the spatial image mosaic. The method permits an automatic identification of targets and a better matching for the feature coded technology. In experiments, the method was proved to be valid, with a relatively high precision on three-dimensional image mosaic. The relative error of the space length measurement is less than 0.6%.
Yongsheng Gao, Shuetfung Tse and Wei Gao
B. Wu et al., "3D Digital Measurement of Large Scale Objects Based on Viscous Target", Key Engineering Materials, Vols. 295-296, pp. 687-692, 2005