Publication - A Parametric Spectral-Based Method for Verification of Text in Videos

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A Parametric Spectral-Based Method for Verification of Text in Videos

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In Proceedings

 

Year: 2007
Authors: Vassilis Papavassiliou; Themos Stafylakis; Vassilis Katsouros; George Carayannis
Volume: 2
Book title: In proceedings of the 9-th International Conference on Document Analysis and Recognition, 2007. ICDAR 2007.
Pages: 879 - 883
Address: Curitiba, Parana, Brazil
Organization: IAPR
Date: 23-26 Sept. 2007
ISBN: 9780769528229
ISSN: 1520-5363
DOI: 10.1109/ICDAR.2007.4377041
Abstract:
A new method for verifying text areas detected in video streams is proposed. The algorithm explores the spectral properties of the horizontal projection of candidate text regions in order to reduce the high amount of false alarms that most text detection algorithms suffer from. The full algorithm (text localization followed by verification and temporal redundancy module) has been tested on newscast video sequences (MPEG-1-720 x 576 resolution-184 minutes). The detection module produced 94.82% recall rate but only 51.84% precision rate. The addition of the verification module increased the precision rate to 78.93% keeping the recall rate almost unaffected.
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