Layout-free dewarplng of planar document images

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

研究成果: ジャーナルへの寄稿Conference article

2 引用 (Scopus)

抄録

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.

元の言語英語
記事番号72470X
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
7247
DOI
出版物ステータス出版済み - 3 19 2009
イベントDocument Recognition and Retrieval XVI - San Jose, CA, 米国
継続期間: 1 20 20091 21 2009

Fingerprint

layouts
Layout
Cameras
rectification
Rectification
Digital cameras
Processing
cameras
Image processing
digital cameras
Camera
borders
scanners
image processing
Digital Camera
Cancel
Scanner
Experiments
Experiment

All Science Journal Classification (ASJC) codes

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

これを引用

Layout-free dewarplng of planar document images. / Iwamura, Masakazu; Niwa, Ryo; Horimatsu, Akira; Kise, Koichi; Uchida, Seiichi; Omachi, Shinichiro.

:: Proceedings of SPIE - The International Society for Optical Engineering, 巻 7247, 72470X, 19.03.2009.

研究成果: ジャーナルへの寄稿Conference article

Iwamura, Masakazu ; Niwa, Ryo ; Horimatsu, Akira ; Kise, Koichi ; Uchida, Seiichi ; Omachi, Shinichiro. / Layout-free dewarplng of planar document images. :: Proceedings of SPIE - The International Society for Optical Engineering. 2009 ; 巻 7247.
@article{ce5562107da840e0bc9cca6aae43ac13,
title = "Layout-free dewarplng of planar document images",
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.",
author = "Masakazu Iwamura and Ryo Niwa and Akira Horimatsu and Koichi Kise and Seiichi Uchida and Shinichiro Omachi",
year = "2009",
month = "3",
day = "19",
doi = "10.1117/12.806122",
language = "English",
volume = "7247",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",

}

TY - JOUR

T1 - Layout-free dewarplng of planar document images

AU - Iwamura, Masakazu

AU - Niwa, Ryo

AU - Horimatsu, Akira

AU - Kise, Koichi

AU - Uchida, Seiichi

AU - Omachi, Shinichiro

PY - 2009/3/19

Y1 - 2009/3/19

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=62249165841&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=62249165841&partnerID=8YFLogxK

U2 - 10.1117/12.806122

DO - 10.1117/12.806122

M3 - Conference article

AN - SCOPUS:62249165841

VL - 7247

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 72470X

ER -