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Optical Engineering

Three-dimensional reconstruction of a cylinder surface based on constrained bundle adjustment
Author(s): Tao Ma; Zhenguo Sun; Wenzeng Zhang; Qiang Chen
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Paper Abstract

Bundle adjustment (BA) refines the estimation of three-dimensional (3-D) structures and viewing parameters in multiview 3-D reconstruction. It is crucial to the accuracy of the reconstruction. Generic bundle adjustment (GBA) fails to make full use of <italic<a priori</italic< knowledge of the structure of the objects. We propose a new constrained BA algorithm for 3-D reconstruction of a cylinder surface. In this algorithm, 3-D point positions are parameterized as a combination of the parameters of the cylinder and their two-dimensional locations on the cylinder surface. A random-sample-consensus-based fitting step is used to initialize the parameters of the cylinder surface from more than nine points. Parameters of cameras, the cylinder, and 3-D point locations are then refined by solving the problem of minimizing the reprojection error. Experiments based on synthesized data and real images are performed. Experiment results with synthesized data show that the proposed algorithm achieved a 50% lower reconstruction error than the GBA. Experiment results with real images show that the proposed algorithm is more accurate than the GBA approach when the number of matched point pairs is limited.

Paper Details

Date Published: 8 June 2015
PDF: 9 pages
Opt. Eng. 54(6) 063101 doi: 10.1117/1.OE.54.6.063101
Published in: Optical Engineering Volume 54, Issue 6
Show Author Affiliations
Tao Ma, Tsinghua Univ. (China)
Zhenguo Sun, Tsinghua Univ. (China)
Wenzeng Zhang, Tsinghua Univ. (China)
Qiang Chen, Tsinghua Univ. (China)
Yangtze Delta Region Institute of Tsinghua Univ. (China)

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