A Comparative Evaluation of a Single and Stereo Lighthouse System for 3D Estimation
- Title
- A Comparative Evaluation of a Single and Stereo Lighthouse System for 3D Estimation
- Author
- 이성온
- Issue Date
- 2021-11
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE SENSORS JOURNAL, v. 21, NO 21, Page. 24791-24800
- Abstract
- The lighthouse localization system has recently
been developedand used for localizationin virtual reality (VR).
Not only for VR but also for a general indoor positioning systems (IPSs) it has several advantages over existing methods,
including low cost, wide detection area, and easy setup. Here,
we adopt the stereo configurationof a lighthouse for improved
sensing performance and propose a novel calibration method
for stereo configuration. For the stereo calibration, the exact
positions of sufficient corresponding points in two sensor
coordinates need to be determined. A printed checkerboard
is widely used for stereo camera systems because it is easy
to construct and its accuracy is guaranteed owing to its
printing accuracy. However, in the case of the lighthouse
system, it is very difficult or impossible to construct a highly
accurate calibration board similar to the checkerboard mainly
because of manufacturing errors. In this study, we use a
receiver sensor and a two-axis linear stage equipped with
micrometers. By moving predetermined distances along the
x and y directions on the linear stage, we can obtain multiplepoint information with high accuracy, which can then be used for the stereo calibration of two lighthouses. In this paper,
the calibration and pose estimation procedures are described in detail, and the pose estimation result of the perspectiven-points method is compared with that of the triangulation method. Finally, the pose estimation accuracy of the proposed
system is compared with that of a commercial system that is widely used for highly accurate medical applications.
- URI
- https://ieeexplore.ieee.org/document/9536760https://repository.hanyang.ac.kr/handle/20.500.11754/170408
- ISSN
- 1530-437X; 1558-1748
- DOI
- 10.1109/JSEN.2021.3112584
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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