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A Character Extraction and Recognition Method for Line Drawings

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2 Author(s)
Feng Su ; State Key Lab. for Novel Software Technol., Nanjing Univ., Nanjing, China ; Shijie Cai

Character segmentation and recognition are two difficult key steps in extracting literal information from images. This paper proposes a method for effective segmentation and recognition of characters in complicated graphical contexts of line drawings. Text pixels are first separated from intersecting non-text objects with the holistic graphic recognition algorithm, and then character boxes are grouped into strings using various contextual constraints. The individual characters of a string are recognized with an adaptive recognition-based segmentation scheme based on the structural stroke characteristics. The efficiency and stability of the proposed method have been shown by the experiment results on practical drawings.

Published in:

Image and Signal Processing, 2009. CISP '09. 2nd International Congress on

Date of Conference:

17-19 Oct. 2009