A Device for Capturing Inward-Looking Spherical Light Fields

Quentin Bolsée, Walid Darwish, Daniele Bonatto, Gauthier Lafruit, Adrian Munteanu

Research output: Chapter in Book/Report/Conference proceedingConference paper


We propose a calibration methodology for a novel type of inward-looking spherical light field acquisition device comprised of a moving CMOS camera with two angular degrees of freedom around an object. We designed a calibration cube covered with ChArUco markers to resolve viewpoint ambiguity. Our calibration model includes 20 unknowns describing the spherical parameters and the camera's geometrical and internal properties. These parameters are jointly optimized to reduce the reprojection error of the calibration cube's markers from multiple viewpoints, resulting in a model that can predict the pose of the camera from any other viewpoint. We successfully tested this calibrated model with a photogrammetry experiment followed by view synthesis of novel views using the resulting depth maps. Results show that the reconstructed image is highly accurate when compared to a real-life capturing of the same view.
Original languageEnglish
Title of host publicationInternational Conference on 3D Imaging
ISBN (Electronic)9780738112206
ISBN (Print)978-1-6654-4782-9
Publication statusPublished - 15 Dec 2020
EventInternational Conference on 3D Imaging 2020 - Brussels, Brussels, Belgium
Duration: 15 Dec 202015 Dec 2020

Publication series

Name2020 International Conference on 3D Immersion, IC3D 2020 - Proceedings


ConferenceInternational Conference on 3D Imaging 2020
Abbreviated titleIC3D


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