Layout-free dewarplng of planar document images

Masakazu Iwamura, Ryo Niwa, Akira Horimatsu, Koichi Kise, Seiichi Uchida, Shinichiro Omachi

Research output: Contribution to journalConference article

2 Citations (Scopus)

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, lextlines 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.

Original languageEnglish
Article number72470X
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7247
DOIs
Publication statusPublished - Mar 19 2009
EventDocument Recognition and Retrieval XVI - San Jose, CA, United States
Duration: Jan 20 2009Jan 21 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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