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Journal Article Fast and Reliable Minimal Relative Pose Estimation Under Planar Motion
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Authors
Sunglok Choi, Jong-Hwan Kim
Issue Date
2018-01
Citation
Image and Vision Computing, v.69, pp.103-112
ISSN
0262-8856
Publisher
Elsevier
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1016/j.imavis.2017.08.007
Project Code
17GS1300, The development of visual surveillance system for safety management of train station, Lee Jae-Yeong
Abstract
This paper proposes fast, reliable, and minimal non-iterative relative pose solvers under planar motion constraint. Relative pose estimation is popularly utilized in many important problems such as visual odometry and SLAM, and planar motion is common for mobile robots and vehicles on floors and roads. We transform the original problem formulation of finding intersections of two ellipses into more accessible form of finding intersections of a line and unit circle. Such transformation leads to a non-iterative and closed-form solver, which enables significant speed-up compared to previous methods. The proposed algorithm is almost 9 times faster than the previous minimal solver with planar motion and around 90 times faster than the previous minimal solver with general motion. In addition, our algorithms provide reliable relative pose in degeneracy of the previous minimal planar solvers. Effectiveness of the proposed algorithms is demonstrated with two types of experiments: relative pose estimation with synthetic data and monocular visual odometry with real image sequences.
KSP Keywords
Image sequence, Mobile robots, Monocular visual odometry, Motion constraint, Non-iterative, Planar motion, Problem formulation, Relative pose estimation, Speed-up, Synthetic data, Unit Circle