Rectifying the Bound Document Image Captured by the Camera: A Model Based Approach
ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 1
Recognition of Rotated Characters by Eigen-space
ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 2
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 1 - Volume 01
Estimation of 3D Shape of Warped Document Surface for Image Restoration
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 1 - Volume 01
Warped Image restoration with Applications to Digital Libraries
ICDAR '05 Proceedings of the Eighth International Conference on Document Analysis and Recognition
3D Structure Recovery and Unwarping of Surfaces Applicable to Planes
International Journal of Computer Vision
A Unifying and Rigorous Shape from Shading Method Adapted to Realistic Data and Applications
Journal of Mathematical Imaging and Vision
Surface Deformation Models for Nonrigid 3D Shape Recovery
IEEE Transactions on Pattern Analysis and Machine Intelligence
Geometric Rectification of Camera-Captured Document Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Direct Estimation of Nonrigid Registrations with Image-Based Self-Occlusion Reasoning
IEEE Transactions on Pattern Analysis and Machine Intelligence
Image Quality Metrics: PSNR vs. SSIM
ICPR '10 Proceedings of the 2010 20th International Conference on Pattern Recognition
Estimation of Non-rigid Surface Deformation Using Developable Surface Model
ICPR '10 Proceedings of the 2010 20th International Conference on Pattern Recognition
Monocular template-based reconstruction of smooth and inextensible surfaces
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part III
Three Dimensional Rotation-Free Recognition of Characters
ICDAR '11 Proceedings of the 2011 International Conference on Document Analysis and Recognition
SURF: speeded up robust features
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part I
Rectification and 3D reconstruction of curved document images
CVPR '11 Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
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There is a strong demand for the digitization of books. To meet this demand, camera-based scanning systems are considered to be effective because they could work with the cameras built into mobile terminals. One promising technique proposed to speed up book digitization involves scanning a book while the user flips the pages. In this type of camera-based document image analysis, it is extremely important to rectify distorted images. In this paper, we propose a new method of reconstructing the 3D deformation and restoring a flat document image by utilizing a unique planar development property of a sheet of paper from a monocular image sequence captured while the paper is deformed. Our approach uses multiple input images and is based on the natural condition that a sheet of paper is a developable surface, enabling high-quality restoration without relying on the document structure. In the experiments, we tested the proposed method for the target application using images of different documents and different deformations, and demonstrated its effectiveness.