Title
Natural scene text detection by multi-scale adaptive color clustering and non-text filtering.
Abstract
In recent years, natural scene text detection gains increasing attention because it plays an important role in many computer related techniques. In this paper, we propose a text detection method consisting of two major steps: connected components (CCs) extraction and non-text filtering. For CCs extraction, a multi-scale adaptive color clustering approach is proposed, which can extract text from images in different color complexities and is robust to contrast variation. For non-text filtering, we combine text covariance descriptor (TCD) with histogram of oriented gradients (HOG) to construct feature vectors and use them to distinguish text from background at character and text line levels. Besides, a new text line generation strategy combining both refined and unrefined CCs is applied, which can retrieve some mis-eliminated characters and generate more integrated text lines. Experiments are conducted on two publicly available datasets, the ICDAR 2013 and the ICDAR 2011 datasets, the obtained F-measures on which are 0.76 and 0.75, respectively. Comparative results with some state-of-the-art text detection algorithms demonstrate that the proposed method achieves competitive performance on text detection. HighlightsA multi-scale adaptive color clustering method is proposed to extract characters.Effective features are combined to verify character and text line candidates.A new text line generation method is used to retrieve mis-eliminated characters.
Year
DOI
Venue
2016
10.1016/j.neucom.2016.07.016
Neurocomputing
Keywords
Field
DocType
Natural scene text detection,CCs extraction,Multi-scale adaptive color clustering,Non-text filtering
Feature vector,Pattern recognition,Computer science,Text filtering,Filter (signal processing),Histogram of oriented gradients,Artificial intelligence,Connected component,Cluster analysis,Machine learning,Text detection,Covariance
Journal
Volume
Issue
ISSN
214
C
0925-2312
Citations 
PageRank 
References 
4
0.38
25
Authors
6
Name
Order
Citations
PageRank
Hui Wu140.38
Beiji Zou223141.61
Yu-Qian Zhao3929.98
Zailiang Chen4439.10
chengzhang zhu5153.91
Jianjing Guo640.38