3D Trajectory Reconstruction Under Refraction at a Cylindrical Surface
- Title
- 3D Trajectory Reconstruction Under Refraction at a Cylindrical Surface
- Author
- 박종일
- Keywords
- underwater imaging; Refractive geometry; ray-based representation; multiview reconstruction
- Issue Date
- 2015-09
- Publisher
- IEEE
- Citation
- Image Processing (ICIP), 2015 IEEE International Conference on, Page. 2660-2664
- Abstract
- In conventional imaging, the geometry of image formation is described by the pinhole camera model, and it allows multiview reconstruction based on the perspective projection. If a light ray passes through different media, however, the pin-hole camera model becomes invalid due to refraction, causing changes in direction. In this paper, we present a method for 3D trajectory reconstruction under refraction at a cylindrical surface. In the proposed method, the refractive geometry is represented by a geometric mapping from image points to refracted rays, instead of physically modeling it. 3D points inside the cylindrical surface are estimated by computing intersection points between segments of corresponding refracted rays in multiview. In our experiments, we demonstrate that 3D trajectories of multiple moving objects inside a transparent cylinder, which is filled with water, are successfully recovered using multiple cameras.
- URI
- http://ieeexplore.ieee.org/document/7351285/http://hdl.handle.net/20.500.11754/27381
- ISBN
- 978-1-4799-8339-1; 978-1-4799-8338-4
- DOI
- 10.1109/ICIP.2015.7351285
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > COMPUTER SCIENCE AND ENGINEERING(컴퓨터공학부) > Articles
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