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  1. International Journal of Document Analysis and Recognition (IJDAR)
  2. International Journal of Document Analysis and Recognition (IJDAR) : Volume 18
  3. International Journal of Document Analysis and Recognition (IJDAR) : Volume 18, Issue 2, June 2015
  4. Restoring camera-captured distorted document images
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International Journal of Document Analysis and Recognition (IJDAR) : Volume 20
International Journal of Document Analysis and Recognition (IJDAR) : Volume 19
International Journal of Document Analysis and Recognition (IJDAR) : Volume 18
International Journal of Document Analysis and Recognition (IJDAR) : Volume 18, Issue 4, December 2015
International Journal of Document Analysis and Recognition (IJDAR) : Volume 18, Issue 3, September 2015
International Journal of Document Analysis and Recognition (IJDAR) : Volume 18, Issue 2, June 2015
Preface
Restoring camera-captured distorted document images
Scene text extraction based on edges and support vector regression
A new ring radius transform-based thinning method for multi-oriented video characters
Exploiting colour information for better scene text detection and recognition
Fast and accurate scene text understanding with image binarization and off-the-shelf OCR
Automatic diacritization of Arabic text using recurrent neural networks
International Journal of Document Analysis and Recognition (IJDAR) : Volume 18, Issue 1, March 2015
International Journal of Document Analysis and Recognition (IJDAR) : Volume 17
International Journal of Document Analysis and Recognition (IJDAR) : Volume 16
International Journal of Document Analysis and Recognition (IJDAR) : Volume 15
International Journal of Document Analysis and Recognition (IJDAR) : Volume 14
International Journal of Document Analysis and Recognition (IJDAR) : Volume 13
International Journal of Document Analysis and Recognition (IJDAR) : Volume 12
International Journal of Document Analysis and Recognition (IJDAR) : Volume 11
International Journal of Document Analysis and Recognition (IJDAR) : Volume 10
International Journal of Document Analysis and Recognition (IJDAR) : Volume 9
International Journal of Document Analysis and Recognition (IJDAR) : Volume 8
International Journal of Document Analysis and Recognition (IJDAR) : Volume 7
International Journal of Document Analysis and Recognition (IJDAR) : Volume 6
International Journal of Document Analysis and Recognition (IJDAR) : Volume 5
International Journal of Document Analysis and Recognition (IJDAR) : Volume 4
International Journal of Document Analysis and Recognition (IJDAR) : Volume 3
International Journal of Document Analysis and Recognition (IJDAR) : Volume 2
International Journal of Document Analysis and Recognition (IJDAR) : Volume 1

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Restoring camera-captured distorted document images

Content Provider SpringerLink
Author Liu, Changsong Zhang, Yu Wang, Baokang Ding, Xiaoqing
Copyright Year 2014
Abstract This article discusses restoration of camera-captured distorted document images. Without the assistance of 3D data or model, our algorithm estimates and rectifies document warping just from 2D image based on line segmentation. Warping shape of each text line is acquired by estimating baselines’ shape and characters’ slant angles after line segmentation. In order to get fluent recovery result, thin-plate splines are exploited whose key points are determined through the result of warping estimation. Such process can effectively depict document warping and successfully restore warped document images to be flat. Comparison of OCR recognition rate between original camera-captured images and restored images shows the effectiveness of the algorithm proposed. We also demonstrate evaluation on DFKI dewarping contest dataset with some related algorithms. Besides desirable restoration result, processing speed of the whole procedure is satisfactory as well. In conclusion, it is applicable to be performed in OCR application to achieve better understanding of camera-captured document images.
Starting Page 111
Ending Page 124
Page Count 14
File Format PDF
ISSN 14332833
Journal International Journal of Document Analysis and Recognition (IJDAR)
Volume Number 18
Issue Number 2
e-ISSN 14332825
Language English
Publisher Springer Berlin Heidelberg
Publisher Date 2014-11-26
Publisher Place Berlin, Heidelberg
Access Restriction Subscribed
Subject Keyword Baseline fitting Distorted document images Line segmentation Thin-plate splines Image Processing and Computer Vision Pattern Recognition
Content Type Text
Resource Type Article
Subject Computer Vision and Pattern Recognition Software Computer Science Applications
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