Procedural elements for computer graphics (2nd ed.)
Procedural elements for computer graphics (2nd ed.)
Digital Image Warping
Adaptive Document Binarization
ICDAR '97 Proceedings of the 4th International Conference on Document Analysis and Recognition
Former books digital processing: image warping
DIA '97 Proceedings of the 1997 Workshop on Document Image Analysis
Recognition of License Plate Images: Issues and Perspectives
ICDAR '99 Proceedings of the Fifth International Conference on Document Analysis and Recognition
Information Capturing Camera and Developmental Issues
ICDAR '99 Proceedings of the Fifth International Conference on Document Analysis and Recognition
Recovery of Distorted Document Images from Bound Volumes
ICDAR '01 Proceedings of the Sixth International Conference on Document Analysis and Recognition
Character Recognition in Bookshelf Images by Automatic Template Selection
ICPR '98 Proceedings of the 14th International Conference on Pattern Recognition-Volume 2 - Volume 2
Automatic text detection and tracking in digital video
IEEE Transactions on Image Processing
Warped Image restoration with Applications to Digital Libraries
ICDAR '05 Proceedings of the Eighth International Conference on Document Analysis and Recognition
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
Shape from shading for the digitization of curved documents
Machine Vision and Applications
Restoration of arbitrarily warped document images based on text line and word detection
SPPR'07 Proceedings of the Fourth conference on IASTED International Conference: Signal Processing, Pattern Recognition, and Applications
Restoration of arbitrarily warped document images based on text line and word detection
SPPRA '07 Proceedings of the Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications
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
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
Document image de-warping based on detection of distorted text lines
ICIAP'05 Proceedings of the 13th international conference on Image Analysis and Processing
Stereo camera based wearable reading device
AH '12 Proceedings of the 3rd Augmented Human International Conference
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Document analysis and graphics recognition algorithms are normally applied to the processing of images of 2D documents scanned when flattened against a planar surface. Technological advancements in recent years have led to a situation in which digital cameras with high resolution are widely available. Consequently, traditional graphics recognition tasks may be updated to accommodate document images captured through a hand-held camera in an uncontrolled environment. In this paper the problem of perspective and geometric deformations correction in document images is discussed. The proposed approach uses the texture of a document image so as to infer the document structure distortion. A two-pass image warping algorithm is then used to correct the images. In addition to being language independent, the proposed approach may handle document images that include multiple fonts, math notations, and graphics. The de-warped images contain less distortions and so are better suited for existing text/graphics recognition techniques.