A shortcut to align 3D images captured from multiple views

Wei Heng; Hao Wang

doi:10.1117/12.839217

24 August 2009 A shortcut to align 3D images captured from multiple views

Wei Heng, Hao Wang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73752H (2009) https://doi.org/10.1117/12.839217
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

In order to get whole shape of an object, lots of parts of 3D images need to be captured from multiple views and aligned into a same 3D coordinate. That usually involves in both complex software process and expensive hardware system. In this paper, a shortcut approach is proposed to align 3D images captured from multiple views. Employing only a calibrated turntable, a single-view 3D camera can capture a sequence of 3D images of an object from different view angle one by one, then align them quickly and automatically. The alignment doesn't need any help from the operator. It can achieve good performances such as high accuracy, robust, rapidly capturing and low cost. The turntable calibration can be easily implemented by the single-view 3D camera. Fixed with the turntable, single-view 3D camera can calibrate the revolving-axis of the turntable just by measuring the positions of a little calibration-ball revolving with the turntable at several angles. Then system can get the coordinate transformation formula between multiple views of different revolving angle by a LMS algorithm. The formulae for calibration and alignment are given with the precision analysis. Experiments were performed and showed effective result to recover 3D objects.

Citation Download Citation

Wei Heng and Hao Wang "A shortcut to align 3D images captured from multiple views", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73752H (24 August 2009); https://doi.org/10.1117/12.839217

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