Camera-based analysis of text and documents: a survey
J Liang, D Doermann, H Li - International Journal of Document Analysis …, 2005 - Springer
The increasing availability of high-performance, low-priced, portable digital imaging devices
has created a tremendous opportunity for supplementing traditional scanning for document …
has created a tremendous opportunity for supplementing traditional scanning for document …
End-to-end piece-wise unwarping of document images
Document unwarping attempts to undo the physical deformation of the paper and recover
a'flatbed'scanned document-image for downstream tasks such as OCR. Current state-of-the …
a'flatbed'scanned document-image for downstream tasks such as OCR. Current state-of-the …
Volumetric fast fourier convolution for detecting ink on the carbonized herculaneum papyri
Abstract Recent advancements in Digital Document Restoration (DDR) have led to
significant breakthroughs in analyzing highly damaged written artifacts. Among those, there …
significant breakthroughs in analyzing highly damaged written artifacts. Among those, there …
Method and apparatus for indicating a field of view for a document camera
US6463220B1 - Method and apparatus for indicating a field of view for a document camera -
Google Patents US6463220B1 - Method and apparatus for indicating a field of view for a …
Google Patents US6463220B1 - Method and apparatus for indicating a field of view for a …
A cylindrical surface model to rectify the bound document image
H Cao, X Ding, C Liu - Proceedings Ninth IEEE international …, 2003 - ieeexplore.ieee.org
We propose a novel approach on how to rectify the photo image of the bound document.
The surface of the document is modeled by a cylindrical surface. By the geometry of camera …
The surface of the document is modeled by a cylindrical surface. By the geometry of camera …
Restoring warped document images through 3d shape modeling
Scanning a document page from a thick bound volume often results in two kinds of
distortions in the scanned image, ie, shade along the" spine" of the book and warping in the …
distortions in the scanned image, ie, shade along the" spine" of the book and warping in the …
Geometric and shading correction for images of printed materials using boundary
A novel technique that uses boundary interpolation to correct geometric distortion and
shading artifacts present in images of printed materials is presented. Unlike existing …
shading artifacts present in images of printed materials is presented. Unlike existing …
Rectifying the bound document image captured by the camera: A model based approach
H Cao, X Ding, C Liu - Seventh International Conference on …, 2003 - ieeexplore.ieee.org
A model based approach for rectifying the camera image of the bound document has been
developed, ie, the surface of the document is represented by a general cylindrical surface …
developed, ie, the surface of the document is represented by a general cylindrical surface …
Document image de-warping for text/graphics recognition
C Wu, G Agam - Structural, Syntactic, and Statistical Pattern Recognition …, 2002 - Springer
Document analysis and graphics recognition algorithms are normally applied to the
processing of images of 2D documents scanned when flattened against a planar surface …
processing of images of 2D documents scanned when flattened against a planar surface …
Dewarping of document image by global optimization
This paper proposes a novel dewarping technique for document images of bound volumes.
This technique is a kind of model fitting techniques for estimating the warp of each text line …
This technique is a kind of model fitting techniques for estimating the warp of each text line …