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Your search keyword '"Xu, Hong-Bo"' showing total 13 results
Start Over Author "Xu, Hong-Bo" Publisher springer science and business media llc
13 results on '"Xu, Hong-Bo"'

8. Skew detection for binary document images using mathematical morphyology

Author

Tian Yan and Xu Hong-bo

Subjects
Multidisciplinary, business.industry, Binary image, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Skew, Binary number, Pattern recognition, Optical character recognition, computer.software_genre, Skew angle, Hough transform, law.invention, law, Dilation (morphology), Computer vision, Artificial intelligence, business, computer, Mathematics
Abstract

The input document images with skew can be a serious problem in the optical character recognition system. A method is proposed for skew detection in binary document images using mathematic morphology. The basic process of our approach consists of three steps: Firstly, a dilation operation is applied to the binary image; Secondly, the dilated image is thinned; Finally, the skew angle is detected using the Hough transform. The proposed approach with high precision can detect skew with large angle (−90δ-90Δ). The experimental result shows this method is applicable and efficient.

Published
2002
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