A Cylindrical Surface Model to Rectify the Bound Document Image

Authors:
Huaigu Cao;Xiaoqing Ding;Changsong Liu
Affiliations:
-;-;-
Venue:
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Year:
2003

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Abstract

This article proposes a novel approach on how torectify the photo image of the bound document. Thesurface of the document is modeled by a cylindricalsurface. By the geometry of camera image formation, theequations using the cue of directrixes to map the points onthe surface in the 3-D scene to the points on the imageplane are achieved. Baselines of the horizontal text lineare extracted as projections of directrixes to estimate thebending extent of the surface, and then the images arerectified. The proposed method needs no auxiliary device.Experimental results are presented to demonstrate thefeasibility and the application of the method.