Restoring Warped Document Images through 3D Shape Modeling
IEEE Transactions on Pattern Analysis and Machine Intelligence
Document Image Dewarping using Robust Estimation of Curled Text Lines
ICDAR '05 Proceedings of the Eighth International Conference on Document Analysis and Recognition
Shape from shading for the digitization of curved documents
Machine Vision and Applications
Photometric and geometric restoration of document images using inpainting and shape-from-shading
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
Composition of a dewarped and enhanced document image from two view images
IEEE Transactions on Image Processing
Restoring Chinese documents images based on text boundary lines
SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Shape from contour for the digitization of curved documents
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part II
Book scanner dewarping with weak 3d measurements and a simplified surface model
DGCI'08 Proceedings of the 14th IAPR international conference on Discrete geometry for computer imagery
Surface image synthesis of moving spinning cans using a 1,000-fps area scan camera
Machine Vision and Applications - Integrated Imaging and Vision Techniques for Industrial Inspection
Proceedings of the 2011 Workshop on Historical Document Imaging and Processing
Correcting bound document images based on automatic and robust curved text lines estimation
ICCPOL'06 Proceedings of the 21st international conference on Computer Processing of Oriental Languages: beyond the orient: the research challenges ahead
Stereo camera based wearable reading device
AH '12 Proceedings of the 3rd Augmented Human International Conference
The restoration of camera documents through image segmentation
DAS'06 Proceedings of the 7th international conference on Document Analysis Systems
Decapod: a flexible, low cost digitization solution for small and medium archives
CBDAR'11 Proceedings of the 4th international conference on Camera-Based Document Analysis and Recognition
Digitization of deformed documents using a high-speed multi-camera array
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part II
Reconstruction of 3d surface and restoration of flat document image from monocular image sequence
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part IV
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In this paper, we propose a shape reconstruction and image restoration method for paper documents with curved surfaces or fold lines by using a stereo vision system. Characters in images of thick book's pages acquired with an image scanner are difficult to recognize because they are deformed under the influence of curved surface. Therefore, 3-D shape reconstruction of the book's surface is executed from the result of the stereoscopic measurement by putting the book upward, and an image of a flat surface is recovered from the curved or folded surface. The validity of the proposed method is shown through experiments.