A Page Content Independent Book Dewarping Method to Handle 2D Images Captured by a Digital Camera

  • Minghui Wu
  • Rongfeng Li
  • Bin Fu
  • Wenxin Li
  • Zhuoqun Xu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4633)

Abstract

In this paper, we propose a coordinate transform model to rectify both the perspective and surface curving distortions of a book image, which is captured by a 2D digital camera. The rectification process includes three steps: 1) detect the boundary of a curved page on a book image; 2) knowing the four boundary curves of a book page should be mapped to the four sides of a rectangle, we build up the correspondence between a pixel inside the book page and a pixel inside the rectangle; 3) fill each pixel in the rectangle with its correspondence pixel on the book image, we get a rectangle which is the dewarped page we want. The experimental results show the effectiveness of the proposed rectification approach.

Keywords

Transformation model text line document rectification book dewarping digital camera 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Minghui Wu
    • 1
  • Rongfeng Li
    • 1
  • Bin Fu
    • 1
  • Wenxin Li
    • 1
  • Zhuoqun Xu
    • 1
  1. 1.State Key Laboratory on Machine Perception, School of Electronics Engineering and Computer Science, Peking University, BeijingChina

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