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Proceedings Paper

Free-viewpoint image generation from a video captured by a handheld camera
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Paper Abstract

In general, free-viewpoint image is generated by captured images by a camera array aligned on a straight line or circle. A camera array is able to capture synchronized dynamic scene. However, camera array is expensive and requires great care to be aligned exactly. In contrast to camera array, a handy camera is easily available and can capture a static scene easily. We propose a method that generates free-viewpoint images from a video captured by a handheld camera in a static scene. To generate free-viewpoint images, view images from several viewpoints and information of camera pose/positions of these viewpoints are needed. In a previous work, a checkerboard pattern has to be captured in every frame to calculate these parameters. And in another work, a pseudo perspective projection is assumed to estimate parameters. This assumption limits a camera movement. However, in this paper, we can calculate these parameters by "Structure From Motion". Additionally, we propose a selection method for reference images from many captured frames. And we propose a method that uses projective block matching and graph-cuts algorithm with reconstructed feature points to estimate a depth map of a virtual viewpoint.

Paper Details

Date Published: 15 February 2011
PDF: 9 pages
Proc. SPIE 7863, Stereoscopic Displays and Applications XXII, 78631N (15 February 2011); doi: 10.1117/12.872292
Show Author Affiliations
Kota Takeuchi, Nagoya Univ. (Japan)
Norishige Fukushima, Nagoya Institute of Technology (Japan)
Tomohiro Yendo, Nagoya Univ. (Japan)
Mehrdad Panahpour Tehrani, Nagoya Univ. (Japan)
Toshiaki Fujii, Tokyo Institute of Technology (Japan)
Masayuki Tanimoto, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 7863:
Stereoscopic Displays and Applications XXII
Andrew J. Woods; Nicolas S. Holliman; Neil A. Dodgson, Editor(s)

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