Faculty of Information Technology, BUT

Publication Details

Convolutional Neural Networks for Direct Text Deblurring

HRADIŠ Michal, KOTERA Jan, ZEMČÍK Pavel and ŠROUBEK Filip. Convolutional Neural Networks for Direct Text Deblurring. In: Proceedings of BMVC 2015. Swansea: The British Machine Vision Association and Society for Pattern Recognition, 2015, pp. 1-13. ISBN 1-901725-53-7. Available from: http://www.bmva.org/bmvc/2015/papers/paper006/index.html
Czech title
Rekonstrukce rozmazaného textu pomocí konvolučních neuronových sítí
Type
conference paper
Language
english
Authors
Hradiš Michal, Ing., Ph.D. (DCGM FIT BUT)
Kotera Jan (UTIA CAS CR)
Zemčík Pavel, prof. Dr. Ing. (DCGM FIT BUT)
Šroubek Filip, Ing., Ph.D., DSc. (UTIA CAS CR)
URL
Keywords
convolutional neural networks, blind deconvolution, image restoration, deblurring, CNN, neural networks, deep learning
Abstract
In this work we address the problem of blind deconvolution and denoising. We focus on restoration of text documents and we show that this type of highly structured data can be successfully restored by a convolutional neural network. The networks are trained to reconstruct high-quality images directly from blurry inputs without assuming any specific blur and noise models. We demonstrate the performance of the convolutional networks on a large set of text documents and on a combination of realistic de-focus and camera shake blur kernels. On this artificial data, the convolutional networks significantly outperform existing blind deconvolution methods, including those optimized for text, in terms of image quality and OCR accuracy. In fact, the networks outperform even state-of-the-art non-blind methods for anything but the lowest noise levels. The approach is validated on real photos taken by various devices. 
Further information including test data and trained networks can be found on the [PROJECT PAGE].

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Published
2015
Pages
1-13
Proceedings
Proceedings of BMVC 2015
Conference
British Machine Vision Conference (BMVC) 2015, Swansea, GB
ISBN
1-901725-53-7
Publisher
The British Machine Vision Association and Society for Pattern Recognition
Place
Swansea, GB
DOI
BibTeX
@INPROCEEDINGS{FITPUB10922,
   author = "Michal Hradi\v{s} and Jan Kotera and Pavel Zem\v{c}\'{i}k and Filip \v{S}roubek",
   title = "Convolutional Neural Networks for Direct Text Deblurring",
   pages = "1--13",
   booktitle = "Proceedings of BMVC 2015",
   year = 2015,
   location = "Swansea, GB",
   publisher = "The British Machine Vision Association and Society for Pattern Recognition",
   ISBN = "1-901725-53-7",
   doi = "10.5244/C.29.6",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/10922"
}
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