Dolereit, Tim ; Lukas, Uwe von ; Kuijper, Arjan (2015)
Underwater Stereo Calibration Utilizing Virtual Object Points.
OCEANS 2015 MTS/IEEE Washington.
doi: 10.1109/OCEANS-Genova.2015.7271593
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
For 3D-reconstruction of underwater scenes, a camera calibration handling refractive effects is indispensable. We present a novel geometry-based approach for calibration of stereo-camera-systems in a single underwater housing with a flat interface. Our approach consists of three steps. First, we show a hypothesis on how to relate the location of virtual object points non-ambiguously to the true object location in water. Secondly, axis determination and thirdly, distance determination of a refractive interface towards the cameras is performed with the aid of this hypothesis. We propose, that the calibration can be done with just one stereo-view of a known calibration pattern, that axis determination can be done from stereo correspondences alone and that our hypothesis is a valid constraint for stereo 3d-reconstruction. We evaluated our approach on simulated data with ground truth and real data.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Dolereit, Tim ; Lukas, Uwe von ; Kuijper, Arjan |
| Art des Eintrags: | Bibliographie |
| Titel: | Underwater Stereo Calibration Utilizing Virtual Object Points |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Verlag: | The Institute of Electrical and Electronics Engineers (IEEE) |
| Veranstaltungstitel: | OCEANS 2015 MTS/IEEE Washington |
| DOI: | 10.1109/OCEANS-Genova.2015.7271593 |
| Kurzbeschreibung (Abstract): | For 3D-reconstruction of underwater scenes, a camera calibration handling refractive effects is indispensable. We present a novel geometry-based approach for calibration of stereo-camera-systems in a single underwater housing with a flat interface. Our approach consists of three steps. First, we show a hypothesis on how to relate the location of virtual object points non-ambiguously to the true object location in water. Secondly, axis determination and thirdly, distance determination of a refractive interface towards the cameras is performed with the aid of this hypothesis. We propose, that the calibration can be done with just one stereo-view of a known calibration pattern, that axis determination can be done from stereo correspondences alone and that our hypothesis is a valid constraint for stereo 3d-reconstruction. We evaluated our approach on simulated data with ground truth and real data. |
| Freie Schlagworte: | Business Field: Visual decision support, Research Area: Computer vision (CV), Underwater imaging, Camera calibration, 3D Reconstruction, Stereo camera systems |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 08 Mai 2019 08:04 |
| Letzte Änderung: | 08 Mai 2019 08:04 |
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