Transformation of arc-form-text to linear-form-text suitable for OCR

Vasudev, T. and Hemanth Kumar, G. and Nagabhushan, P. (2007) Transformation of arc-form-text to linear-form-text suitable for OCR. Pattern Recognition Letters, 28 (16). 2343 - 2351. ISSN 1872-7344)

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Artistic text contents are quite common in several documents such as certificates, advertisements, historic documents. One such artistic structure is arc-form-text. If an OCR has to be employed, it is necessary to transform the text in arc-form to linear-form-text. In this paper, we present an approach to accomplish this. Since the peripheral of an arc-form-text approximates concentric ellipsoidal contours, the proposed model is based on ellipse drawing algorithm. The methodology sequences through three stages – first it involves segmentation of document containing arc-form-text and binding the top and bottom contours of the arc peripherals by concentric ellipsoidal enclosures, next transformation of arc-form to linear form takes place and finally tilt deformation present in the transformed characters is corrected. The proposed method is implemented on several upper semi-circular and arc-form text inputs, and the readability of the transformed text is analyzed with an OCR.

Item Type: Article
Uncontrolled Keywords: Artistic-text, Arc-form-text, Linear-form-text, Tilt deformation, OCR
Subjects: D Physical Science > Computer Science
Divisions: Department of > Computer Science
Depositing User: MUL SWAPNA user
Date Deposited: 05 Sep 2019 05:31
Last Modified: 11 Mar 2020 05:36

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