Japanese / English

Detail of Publication

Text Language Japanese
Authors Ryo Niwa, Masakazu Iwamura, Koichi Kise, Seiichi Uchida, Shinichiro Omachi
Title Dewarping of Planar Document Image without Layout Constraints
Journal IEICE Technical Report
Presentation number PRMU2008-233
Reviewed or not Not reviewed
Month & Year February 2009
Abstract 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.
Back to list