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CVPR
2004
IEEE
14 years 11 months ago
Restoration of Curved Document Images through 3D Shape Modeling
In this paper, we address the problem of discovering the 3D shape of a book surface from the shading information in a scanned document image. This shapefrom-shading problem is cha...
Zheng Zhang 0003, Chew Lim Tan, Liying Fan
PAMI
2006
114views more  PAMI 2006»
13 years 9 months ago
Restoring Warped Document Images through 3D Shape Modeling
Chew Lim Tan, Li Zhang, Zheng Zhang 0003, Tao Xia
ICPR
2004
IEEE
14 years 11 months ago
Shape Reconstruction and Image Restoration for Non-Flat Surfaces of Documents with a Stereo Vision System
In this paper, we propose a shape reconstruction and image restoration method for paper documents with curved surfaces or fold lines by using a stereo vision system. Characters in...
Atsushi Kawarago, Atsushi Yamashita, Kenjiro T. Mi...
CVPR
2005
IEEE
14 years 11 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
BMVC
1998
13 years 11 months ago
3D Shape Modelling through a Constrained Estimation of a Bicubic B-spline Surface
This paper presents a new method to extract the 3D shape of objects from 3D gray level images using a bicubic B-spline surface model. Extraction of object shape is achieved throug...
Xinquan Shen, Michael Spann