Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.patcog.2009.03.025
Title: | A unified framework for document restoration using inpainting and shape-from-shading | Authors: | Zhang, L. Yip, A.M. Brown, M.S. Tan, C.L. |
Keywords: | Digital inpainting Document image restoration Geometric warping Perspective distortion Physically based flattening RBF-based smoothing Shading distortion Shape-from-shading |
Issue Date: | 2009 | Citation: | Zhang, L., Yip, A.M., Brown, M.S., Tan, C.L. (2009). A unified framework for document restoration using inpainting and shape-from-shading. Pattern Recognition 42 (11) : 2961-2978. ScholarBank@NUS Repository. https://doi.org/10.1016/j.patcog.2009.03.025 | Abstract: | We present a restoration framework to reduce undesirable distortions in imaged documents. Our framework is based on two components: (1) an image inpainting procedure that can separate non-uniform illumination (and other) artifacts from the printed content and (2) a shape-from-shading (SfS) formulation that can reconstruct the 3D shape of the document's surface. Used either piecewise or in its entirety, this framework can correct a variety of distortions including shading, shadow, ink-bleed, show-through, perspective and geometric distortions, for both camera-imaged and flatbed-imaged documents. Our overall framework is described in detail. In addition, our SfS formulation can be easily modified to target various illumination conditions to suit different real-world applications. Results on images of synthetic and real documents demonstrate the effectiveness of our approach. OCR results are also used to gauge the performance of our approach. © 2009 Elsevier Ltd. All rights reserved. | Source Title: | Pattern Recognition | URI: | http://scholarbank.nus.edu.sg/handle/10635/43047 | ISSN: | 00313203 | DOI: | 10.1016/j.patcog.2009.03.025 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
46
checked on Aug 3, 2022
WEB OF SCIENCETM
Citations
39
checked on Aug 3, 2022
Page view(s)
204
checked on Aug 4, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.