Spatial light path analysis and calibration of four-mirror-based monocular stereo vision Article Swipe
Xiao Li
,
Wei Li
,
Xin Ma
,
Xin’an Yuan
,
Xiaokang Yin
,
Xingpei Chen
,
Jianming Zhao
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.435893
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.435893
The feasibility and accuracy of four-mirror-based monocular stereo vision (FMSV) are related to the system layout and calibration accuracy, respectively. In this study, a spatial light path analysis method and a calibration method are proposed for an FMSV system. As two-dimensional light path analysis cannot fully characterize the imaging parameters, a spatial light path model is proposed, which allows refinement of the system design. Then, considering the relationship between the lens distortion and the imaging depth of field (DoF), a DoF-distortion equal-partition-based model is established. In the traditional calibration method, the optical axis must be perpendicular to the chessboard. Here, an accurate and practical FMSV calibration method without this constraint is proposed based on the above model. Using the proposed spatial light path analysis technique, a high-accuracy, high-portability FMSV system is constructed and calibrated, for which the average error of the vision-reconstructed distance is 0.0298 mm. In addition, robot path accuracy is evaluated by the system and compared to laser-tracker measurement results. Hence, high accuracy of 0.031 mm is determined for the proposed vision system.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.435893
- OA Status
- gold
- Cited By
- 7
- References
- 33
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3198256950
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3198256950Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.435893Digital Object Identifier
- Title
-
Spatial light path analysis and calibration of four-mirror-based monocular stereo visionWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-09-01Full publication date if available
- Authors
-
Xiao Li, Wei Li, Xin Ma, Xin’an Yuan, Xiaokang Yin, Xingpei Chen, Jianming ZhaoList of authors in order
- Landing page
-
https://doi.org/10.1364/oe.435893Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.435893Direct OA link when available
- Concepts
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Computer science, Computer vision, Artificial intelligence, Calibration, Optics, Distortion (music), Optical path, Stereopsis, Monocular vision, Physics, Amplifier, Quantum mechanics, Bandwidth (computing), Computer networkTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
7Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2024: 1, 2023: 1, 2022: 3Per-year citation counts (last 5 years)
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33Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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