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Cursive word reference line detection
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DOI：10.1016/S0031-3203(96)00081-7.png)
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摘要
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This paper proposes a novel method in detecting the four reference lines of a cursive word at any skew angle. The proposed method is rotation independent because the detection is based on points determined by their relative positions between the outer contour of a cursive word and its convex hull. Features like bounding box, contour area, convex hull and furthest points are used in detecting and grouping these points. The reference lines are detected by searching for suitable peaks in the Hough transformation space of these points. Encouraging experimental results have been obtained. (C) 1997 Pattern Recognition Society.
Keyword:
base line
base point
convex hull
cursive word
Hough transform
reference line
skew detection
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