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Proceedings Paper

High-resolution video mosaicing for documents and photos by estimating camera motion
Author(s): Tomokazu Sato; Sei Ikeda; Masayuki Kanbara; Akihiko Iketani; Noboru Nakajima; Naokazu Yokoya; Keiji Yamada
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Paper Abstract

Recently, document and photograph digitization from a paper is very important for digital archiving and personal data transmission through the internet. Though many people wish to digitize documents on a paper easily, now heavy and large image scanners are required to obtain high quality digitization. To realize easy and high quality digitization of documents and photographs, we propose a novel digitization method that uses a movie captured by a hand-held camera. In our method, first, 6-DOF(Degree Of Freedom) position and posture parameters of the mobile camera are estimated in each frame by tracking image features automatically. Next, re-appearing feature points in the image sequence are detected and stitched for minimizing accumulated estimation errors. Finally, all the images are merged as a high-resolution mosaic image using the optimized parameters. Experiments have successfully demonstrated the feasibility of the proposed method. Our prototype system can acquire initial estimates of extrinsic camera parameters in real-time with capturing images.

Paper Details

Date Published: 21 May 2004
PDF: 8 pages
Proc. SPIE 5299, Computational Imaging II, (21 May 2004); doi: 10.1117/12.526510
Show Author Affiliations
Tomokazu Sato, Nara Institute of Science and Technology (Japan)
NEC Labs. (Japan)
Sei Ikeda, Nara Institute of Science and Technology (Japan)
Masayuki Kanbara, Nara Institute of Science and Technology (Japan)
NEC Labs. (Japan)
Akihiko Iketani, NEC Labs. (Japan)
Noboru Nakajima, NEC Labs. (Japan)
Naokazu Yokoya, Nara Institute of Science and Technology (Japan)
NEC Labs. (Japan)
Keiji Yamada, NEC Labs. (Japan)

Published in SPIE Proceedings Vol. 5299:
Computational Imaging II
Charles A. Bouman; Eric L. Miller, Editor(s)

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