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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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