Computer Vision
Document Image De-warping for Text/Graphics Recognition
Proceedings of the Joint IAPR International Workshop on Structural, Syntactic, and Statistical Pattern Recognition
Recovery of Distorted Document Images from Bound Volumes
ICDAR '01 Proceedings of the Sixth International Conference on Document Analysis and Recognition
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
Correcting Document Image Warping Based on Regression of Curved Text Lines
ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 1
Image Restoration of Arbitrarily Warped Documents
IEEE Transactions on Pattern Analysis and Machine Intelligence
Restoring Warped Document Images through 3D Shape Modeling
IEEE Transactions on Pattern Analysis and Machine Intelligence
Dewarping of document image by global optimization
ICDAR '05 Proceedings of the Eighth International Conference on Document Analysis and Recognition
Document Image Dewarping using Robust Estimation of Curled Text Lines
ICDAR '05 Proceedings of the Eighth International Conference on Document Analysis and Recognition
Adaptive degraded document image binarization
Pattern Recognition
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This paper presents a novel technique for efficient restoration of arbitrarily warped document images. Our aim is to recover document images that are mainly bounded volumes captured by a digital camera and suffer from non-linear warp. The proposed technique is applied on gray scale document images and is based on several distinct steps: an adaptive document image binarization, a text line and word detection, a first draft binary image dewarping based on word rotation and shifting and, finally, a complete restoration of the original grayscale warped image guided by the binary dewarping result. In this paper, we present a detailed description of the proposed technique as well as the implementation results for each step of our methodology. The experimental results on several arbitrarily warped documents indicate the effectiveness of the proposed technique.