Difference between revisions of "Publications/fabrizio.13.paa"

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#REDIRECT [[Publications/fabrizio.13.paa]]
{{Publication
 
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[[Category:PublicationRedirected]]
| published = true
 
| date = 2013-11-05
 
| authors = Jonathan Fabrizio, Beatriz Marcotegui, Matthieu Cord
 
| title = Text detection in street level image
 
| journal = Pattern Analysis and Applications
 
| volume = 16
 
| number = 4
 
| publisher = Springer
 
| pages = 519 to 533
 
| project = Image
 
| urllrde = fabrizio.13.paa
 
| abstract = Text detection system for natural images is a very challenging task in Computer Vision. Image acquisition introduces distortion in terms of perspective, blurringillumination, and characters which may have very different shape, size, and color. We introduce in this article a full text detection scheme. Our architecture is based on a new process to combine a hypothesis generation step to get potential boxes of text and a hypothesis validation step to filter false detections. The hypothesis generation process relies on a new efficient segmentation method based on a morphological operator. Regions are then filtered and classified using shape descriptors based on Fourier, Pseudo Zernike moments and an original polar descriptor, which is invariant to rotation. Classification process relies on three SVM classifiers combined in a late fusion scheme. Detected characters are finally grouped to generate our text box hypotheses. Validation step is based on a global SVM classification of the box content using dedicated descriptors adapted from the HOG approach. Results on the well-known ICDAR database are reported showing that our method is competitive. Evaluation protocol and metrics are deeply discussed and results on a very challenging street-level database are also proposed.
 
| lrdekeywords = Image
 
| lrdenewsdate = 2013-11-05
 
| type = article
 
| id = fabrizio.13.paa
 
| bibtex =
 
@Article<nowiki>{</nowiki> fabrizio.13.paa,
 
author = <nowiki>{</nowiki>Jonathan Fabrizio and Beatriz Marcotegui and Matthieu
 
Cord<nowiki>}</nowiki>,
 
title = <nowiki>{</nowiki>Text detection in street level image<nowiki>}</nowiki>,
 
journal = <nowiki>{</nowiki>Pattern Analysis and Applications<nowiki>}</nowiki>,
 
year = <nowiki>{</nowiki>2013<nowiki>}</nowiki>,
 
volume = <nowiki>{</nowiki>16<nowiki>}</nowiki>,
 
number = <nowiki>{</nowiki>4<nowiki>}</nowiki>,
 
month = nov,
 
publisher = <nowiki>{</nowiki>Springer<nowiki>}</nowiki>,
 
pages = <nowiki>{</nowiki>519--533<nowiki>}</nowiki>,
 
project = <nowiki>{</nowiki>Image<nowiki>}</nowiki>,
 
abstract = <nowiki>{</nowiki>Text detection system for natural images is a very
 
challenging task in Computer Vision. Image acquisition
 
introduces distortion in terms of perspective, blurring,
 
illumination, and characters which may have very different
 
shape, size, and color. We introduce in this article a full
 
text detection scheme. Our architecture is based on a new
 
process to combine a hypothesis generation step to get
 
potential boxes of text and a hypothesis validation step to
 
filter false detections. The hypothesis generation process
 
relies on a new efficient segmentation method based on a
 
morphological operator. Regions are then filtered and
 
classified using shape descriptors based on Fourier, Pseudo
 
Zernike moments and an original polar descriptor, which is
 
invariant to rotation. Classification process relies on
 
three SVM classifiers combined in a late fusion scheme.
 
Detected characters are finally grouped to generate our
 
text box hypotheses. Validation step is based on a global
 
SVM classification of the box content using dedicated
 
descriptors adapted from the HOG approach. Results on the
 
well-known ICDAR database are reported showing that our
 
method is competitive. Evaluation protocol and metrics are
 
deeply discussed and results on a very challenging
 
street-level database are also proposed.<nowiki>}</nowiki>
 
<nowiki>}</nowiki>
 
 
}}
 

Revision as of 12:40, 26 December 2013