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Algorithm for choosing the best frame in a video stream in the task of identity document recognition
M.A. Aliev 1,4, I.A. Kunina 1,2,3, A.V. Kazbekov 1, V.L. Arlazarov 4

Smart Engines Service LLC, Moscow, Russia,

Institute for Information Transmission Problems (Kharkevich Institute) RAS, Moscow, Russia,

Moscow Institute of Physics and Technology (State University), Moscow, Russia,

Federal Research Center Computer Science and Control RAS, Moscow, Russia

 PDF, 3121 kB

DOI: 10.18287/2412-6179-CO-811

Страницы: 101-109.

Язык статьи: English

During the process of document recognition in a video stream using a mobile device camera, the image quality of the document varies greatly from frame to frame. Sometimes recognition system is required not only to recognize all the specified attributes of the document, but also to select final document image of the best quality. This is necessary, for example, for archiving or providing various services; in some countries it can be required by law. In this case, recognition system needs to assess the quality of frames in the video stream and choose the "best" frame. In this paper we considered the solution to such a problem where the "best" frame means the presence of all specified attributes in a readable form in the document image. The method was set up on a private dataset, and then tested on documents from the open MIDV-2019 dataset. A practically applicable result was obtained for use in recognition systems.

Ключевые слова:
human perception, quality assessment, document images, blur, sharpness, flares.

This work was partially supported by the Russian Foundation for Basic Research (projects ## 17-29-03161, 18-07-01387).

Aliev MA, Kunina IA, Kazbekov AV, Arlazarov VL. Algorithm for choosing the best frame in a video stream in the task of identity document recognition. Computer Optics 2021; 45(1): 101-109. DOI: 10.18287/2412-6179-CO-811.


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