Text region extraction method for historical Tibetan document based on border detection

Yiqun Wang; Weilan Wang; Zhengqi Cai

doi:10.1117/12.2634657

4 May 2022 Text region extraction method for historical Tibetan document based on border detection

Yiqun Wang, Weilan Wang, Zhengqi Cai

Proceedings Volume 12172, International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021); 121720C (2022) https://doi.org/10.1117/12.2634657
Event: International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021), 2021, Nanchang, China

Abstract

The text region extraction is the key step for optical character recognition (OCR) operation. According to the layout characteristics of historical Tibetan document, this paper proposes a text region extraction method based on border detection to extract text region from documents. Firstly, the character height and stroke width are estimated and the border region position is detected. Then, the position of decorative lines surrounding the body text region is detected by heuristic search. Finally, the mask image of the document is generated according to the position relationship between the text regions and border, then different text regions are extracted. Experiments on dataset of historical Tibetan document show that this method can effectively overcome the problems of page tilt, border and decorative lines fracture, and demonstrate the effectiveness of the proposed method.

Citation Download Citation

Yiqun Wang, Weilan Wang, and Zhengqi Cai "Text region extraction method for historical Tibetan document based on border detection", Proc. SPIE 12172, International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021), 121720C (4 May 2022); https://doi.org/10.1117/12.2634657

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Binary data

Optical character recognition

Image quality

Image processing

Analytical research

Edge detection

Image segmentation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years