Please use this identifier to cite or link to this item: https://doi.org/10.1145/1815330.1815366
Title: A new wavelet-median-moment based method for multi-oriented video text detection
Authors: Shivakumara, P. 
Dutta, A.
Tan, C.L. 
Pal, U.
Keywords: Angle projection
K-means clustering
Multi-oriented text line detection
Video text detection
Wavelet-median-moments
Issue Date: 2010
Source: Shivakumara, P.,Dutta, A.,Tan, C.L.,Pal, U. (2010). A new wavelet-median-moment based method for multi-oriented video text detection. ACM International Conference Proceeding Series : 279-286. ScholarBank@NUS Repository. https://doi.org/10.1145/1815330.1815366
Abstract: In this paper, we present a new method based on wavelet-median-moments and a novel idea of angle projection for detecting multi-oriented text in video. The proposed method uses wavelet decomposition first to obtain three high frequency sub-bands (LH, HL and HH) and then median moments are computed on the average sub-bands of the three high frequency sub-bands to brighten the text pixels. K-means clustering (K=2) is used for obtaining text pixels from the wavelet-median-moments features (WMMF). Text candidates are obtained by mapping the output of K-means on Sobel edge map of the original input frame. To deal with multi-oriented text, we introduce a new idea of Angle Projection (AP) based on boundary growing and nearest neighbor concepts from the text candidates instead of conventional projection profiles. The proposed method is experimented on horizontal text data, non-horizontal text data, temporal data, non-text data and camera based images (scene text data of ICDAR 2003 competition) to show that the proposed method is superior to existing methods. © Copyright 2010 ACM.
Source Title: ACM International Conference Proceeding Series
URI: http://scholarbank.nus.edu.sg/handle/10635/41065
ISBN: 9781605587738
DOI: 10.1145/1815330.1815366
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