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Authors: Ho-Sub Yoon 1 ; Jae Yeon Lee 1 and Eun-Mi Ji 2

Affiliations: 1 ETRI, Korea, Republic of ; 2 HyeChon University, Korea, Republic of

Keyword(s): Digit Character Detection, Blind Guidance System.

Abstract: This paper presents an approach for detecting the exit number to enhance the safety and mobility of blind people while walking around subway station. It is extremely important for a blind person to know whether a frontal area is a correct exit number or not. In a crossing at each exit roads, the usual black exit number is painted with blue circle contour that have white background in Taejon subway station. An image-based technique has been developed to detect the isolated number pattern at the crossing roads. The presences of exit numbers are inferred by careful analysis of numeral width, height, rate, number of numerals, as well as bandwidth trend. If we have several candidates of numerals, we adapt to the OCR function. Experimental evaluation of the proposed approach was conducted using several real images with and without exit roads. It was found that the proposed technique performed with good accuracy.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Yoon, H.; Yeon Lee, J. and Ji, E. (2010). DETECTION OF EXIT NUMBER FOR THE BLIND AT THE SUBWAY STATION . In Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP; ISBN 978-989-674-029-0; ISSN 2184-4321, SciTePress, pages 543-546. DOI: 10.5220/0002892505430546

@conference{visapp10,
author={Ho{-}Sub Yoon. and Jae {Yeon Lee}. and Eun{-}Mi Ji.},
title={DETECTION OF EXIT NUMBER FOR THE BLIND AT THE SUBWAY STATION },
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP},
year={2010},
pages={543-546},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002892505430546},
isbn={978-989-674-029-0},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP
TI - DETECTION OF EXIT NUMBER FOR THE BLIND AT THE SUBWAY STATION
SN - 978-989-674-029-0
IS - 2184-4321
AU - Yoon, H.
AU - Yeon Lee, J.
AU - Ji, E.
PY - 2010
SP - 543
EP - 546
DO - 10.5220/0002892505430546
PB - SciTePress