Abstract
Obtaining accurate experimental data from Lagrangian tracking and tomographic velocimetry requires an accurate and consistent camera calibration over multiple views. At length-scales that span beyond the laboratory environment obtaining a camera calibration can be challenging. Combining tools developed in computer vision and non-linear camera mappings known from experimental fluid mechanics, we successfully calibrate a four-camera setup at the large-scale ocean aquarium of the Rotterdam Zoo. The method is valid for any number of cameras and allows retrieving the intrinsic and extrinsic camera properties that can be used to compute the (virtual-)camera positioning and further quality assessment. Using our method we obtain an accurate and consistent camera calibration at largescale over a space that has limited access.
Original language | English |
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Title of host publication | Proceedings of the 19th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics |
Place of Publication | Lisbon, Portugal |
Publisher | Instituto Superior Técnico |
Pages | 1818-1822 |
Publication status | Published - 2018 |
Event | LXLASER2018: 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics - Lisbon, Portugal Duration: 16 Jul 2018 → 19 Jul 2018 Conference number: 19 http://www.lisbon-lasersymposium.org/LXLASER2018 |
Conference
Conference | LXLASER2018: 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics |
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Abbreviated title | LXLASER2018 |
Country/Territory | Portugal |
City | Lisbon |
Period | 16/07/18 → 19/07/18 |
Internet address |
Keywords
- Large-scale Camera Calibration
- Computer Vision
- Field Experiments
- Biological Fluid Mechanics