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Olga Petrova

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Proceedings Article | 31 January 2020 Paper

Methods of weighted combination for text field recognition in a video stream

Olga Petrova, Konstantin Bulatov, Vladimir Arlazarov

Proceedings Volume 11433, 114332L (2020) https://doi.org/10.1117/12.2559378

KEYWORDS: Video, Image quality, Mobile devices, Optical character recognition, Object recognition, Systems modeling, Scientific research

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Due to a noticeable expansion of document recognition applicability, there is a high demand for recognition on mobile devices. A mobile camera, unlike a scanner, cannot always ensure the absence of various image distortions, therefore the task of improving the recognition precision is relevant. The advantage of mobile devices over scanners is the ability to use video stream input, which allows to get multiple images of a recognized document. Despite this, not enough attention is currently paid to the issue of combining recognition results obtained from different frames when using video stream input. In this paper we propose a weighted text string recognition results combination method and weighting criteria, and provide experimental data for verifying their validity and effectiveness. Based on the obtained results, it is concluded that the use of such weighted combination is appropriate for improving the quality of the video stream recognition result.

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