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2009

Layout-free dewarping of planar document images

9 years 7 months ago
Layout-free dewarping of planar document images
For user convenience, processing of document images captured by a digital camera has been attracted much attention. However, most existing processing methods require an upright image such like captured by a scanner. Therefore, we have to cancel perspective distortion of a camera-captured image before processing. Although there are rectification methods of the distortion, most of them work under certain assumptions on the layout; the borders of a document are available, textlines are in parallel, a stereo camera or a video image is required and so on. In this paper, we propose a layout-free rectification method which requires none of the above assumptions. We confirm the effectiveness of the proposed method by experiments.
Masakazu Iwamura, Ryo Niwa, Akira Horimatsu, Koich
Added 17 Feb 2011
Updated 17 Feb 2011
Type Journal
Year 2009
Where DRR
Authors Masakazu Iwamura, Ryo Niwa, Akira Horimatsu, Koichi Kise, Seiichi Uchida, Shinichiro Omachi
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