High-resolution video mosaicing for documents and photos by estimating camera motion

Tomokazu Sato; Sei Ikeda; Masayuki Kanbara; Akihiko Iketani; Noboru Nakajima; Naokazu Yokoya; Keiji Yamada

doi:10.1117/12.526510

21 May 2004 High-resolution video mosaicing for documents and photos by estimating camera motion

Tomokazu Sato, Sei Ikeda, Masayuki Kanbara, Akihiko Iketani, Noboru Nakajima, Naokazu Yokoya, Keiji Yamada

Proceedings Volume 5299, Computational Imaging II; (2004) https://doi.org/10.1117/12.526510
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

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.

Citation Download Citation

Tomokazu Sato, Sei Ikeda, Masayuki Kanbara, Akihiko Iketani, Noboru Nakajima, Naokazu Yokoya, and Keiji Yamada "High-resolution video mosaicing for documents and photos by estimating camera motion", Proc. SPIE 5299, Computational Imaging II, (21 May 2004); https://doi.org/10.1117/12.526510

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