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4 April 2023 Over-the-horizon camera calibration on smartphones with planar mirror reflections
Yong-Liang Xiao, Ming-Lei Wang
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Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126171P (2023) https://doi.org/10.1117/12.2664549
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China
Abstract
To address the camera calibration problems on multi-camera photography without any common field of views (FOVs), an over-the-horizon camera calibration method on smartphones with planar mirror reflections is proposed. The liquid crystal display (LCD) target is placed suitably in the FOV of front cameras assembled on smartphones, and the chessboard images are captured from different views to obtain the intrinsic and extrinsic parameters for the front cameras. Then the target is reflected into the FOVs of rear cameras with planar mirror reflections, which presents parallel characteristics with respect to the front cameras, and then the absolute poses among the LCD target and the rear cameras are estimated. The over-the-horizon camera calibration experiments on a single and double smartphone show that the avenue of planar mirror reflections is simple and delicate. The Kappa’s poses among the front and the rear cameras are exhibited in the three-dimensional diagrams along with the mirrored images, in which the poses transfer among a series of cameras and a public shared target are implemented. The method behaves significantly potentials to resolve some intractable problems on a multi-camera holography without any common FOVs.
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Yong-Liang Xiao and Ming-Lei Wang "Over-the-horizon camera calibration on smartphones with planar mirror reflections", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126171P (4 April 2023); https://doi.org/10.1117/12.2664549
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KEYWORDS
Cameras
Calibration
Mirrors
LCDs
Imaging systems
Image processing
Photography
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