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Detecting Text in Natural Image with Connectionist Text Proposal Network

Open access
Tian, Zhi, Huang, Weilin, He, Tong, He, Pan, Qiao, Yu·2016·Lecture Notes in Computer Science

Abstract

We propose a novel Connectionist Text Proposal Network (CTPN) that accurately localizes text lines in natural image. The CTPN detects a text line in a sequence of fine-scale text proposals directly in convolutional feature maps. We develop a vertical anchor mechanism that jointly predicts location and text/non-text score of each fixed-width proposal, considerably improving localization accuracy. The sequential proposals are naturally connected by a recurrent neural network, which is seamlessly incorporated into the convolutional network, resulting in an end-to-end trainable model. This allows the CTPN to explore rich context information of image, making it powerful to detect extremely ambiguous text. The CTPN works reliably on multi-scale and multi-language text without further post-processing, departing from previous bottom-up methods requiring multi-step post filtering. It achieves 0.88 and 0.61 F-measure on the ICDAR 2013 and 2015 benchmarks, surpassing recent results [8, 35] by a large margin. The CTPN is computationally efficient with 0.14 s/image, by using the very deep VGG16 model [27]. Online demo is available: http://textdet.com/.

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Metadata

Authors
Tian, Z., Huang, W., He, T., He, P., & Qiao, Y.
Venue
Lecture Notes in Computer Science
Published
2016
Pages
56-72
ISSN
  • 0302-9743 (ISSN-L)
  • 1611-3349
OpenAlex
W2519818067
Cited by
1,053
References
6
FWCI
37.83
Type
conference paper
Language
en
Open access
green

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Tian, Z., Huang, W., He, T., He, P., & Qiao, Y. (2016). Detecting Text in Natural Image with Connectionist Text Proposal Network. Lecture Notes in Computer Science. https://doi.org/10.1007/978-3-319-46484-8_4

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