Geodesic
Image quality assessment for video stream recognition systems
Informacionnye tehnologii i vyčislitelnye sistemy, no. 4 (2017), pp. 71-82.

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Recognition and machine vision systems have long been widely used in many disciplines to automate various processes of life and industry. Input images of optical recognition systems can be subjected to a large number of different distortions, especially in uncontrolled or natural shooting conditions, which leads to unpredictable results of recognition systems, making it impossible to assess their reliability. For this reason, it is necessary to perform quality control of the input data of recognition systems, which is facilitated by modern progress in the field of image quality evaluation. In this paper, we investigate the approach to designing optical recognition systems with built-in input image quality estimation modules and feedback, for which the necessary definitions are introduced and a model for describing such systems is constructed. The efficiency of the approach is illustrated by the example of solving the problem of selecting the best frames for recognition in a video stream. Experimental results are presented with the system of recognition of identity documents, showing a significant increase in the accuracy and speed of the system under simulated conditions of automatic camera focusing, leading to blurring of frames.
Keywords: recognition systems, image quality assessment, video stream, defocus, systems analysis.
Mots-clés : blur 
@article{ITVS_2017_4_a5,
     author = {T. S. Chernov and N. P. Razumnuy and A. S. Kozharinov and D. P. Nikolaev and V. V. Arlazarov},
     title = {Image quality assessment for video stream recognition systems},
     journal = {Informacionnye tehnologii i vy\v{c}islitelnye sistemy},
     pages = {71--82},
     publisher = {mathdoc},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ITVS_2017_4_a5/}
}
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T. S. Chernov; N. P. Razumnuy; A. S. Kozharinov; D. P. Nikolaev; V. V. Arlazarov. Image quality assessment for video stream recognition systems. Informacionnye tehnologii i vyčislitelnye sistemy, no. 4 (2017), pp. 71-82. http://geodesic.mathdoc.fr/item/ITVS_2017_4_a5/