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» Restoration of images scanned from thick bound documents
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ICIP
2001
IEEE
14 years 6 months ago
Restoration of images scanned from thick bound documents
Perspective distortion always occurs while scanning thick, bound documents. This distortion mainly causes two sources of degradation for the scanned grayscale image ? i) shade alo...
Zheng Zhang 0003, Chew Lim Tan
CVPR
2005
IEEE
14 years 7 months ago
3D Geometric and Optical Modeling of Warped Document Images from Scanners
When one scans a document page from a thick bound volume, the curvature of the page to be scanned results in two kinds of distortion in the scanned document images: i) shade along...
Li Zhang, Zheng Zhang 0003, Chew Lim Tan, Tao Xia
ICPR
2004
IEEE
14 years 6 months ago
Estimation of 3D Shape of Warped Document Surface for Image Restoration
While scanning pages from a thick, bound book, there are two sources of distortion in the document images: 1) shade along the book `spine', and 2) warping of the book surface...
Chew Lim Tan, Liying Fan, Zheng Zhang 0003
ICIP
2002
IEEE
14 years 6 months ago
Straightening warped text lines using polynomial regression
Perspective distortion always occurs while scanning thick, bound documents, resulting in two problems in the scanned grayscale image ? (i) shade along the `spine' of the book...
Zheng Zhang 0003, Chew Lim Tan
WACV
2007
IEEE
13 years 11 months ago
Warped Document Image Restoration Using Shape-from-Shading and Physically-Based Modeling
With the pervasive use of handheld digital devices such as camera phones and PDAs, people have started to capture images as a way of recording information. However, due to the non...
Li Zhang, Chew Lim Tan