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Barannik, N.
    Constructing the code description of the transformant DCT taking into account their structural features [Text] / Barannik N., Tverdokhlib V., Eliseev E., Zakomorna K., Vorontsova N., Shmakov V. // ATIT 2020 - Proceedings: 2020 2nd IEEE International Conference on Advanced Trends in Information Theory. - 2020. - Ст. № 9349255. - P. 34-37
   Перевод заглавия: Построение кодового описания трансформантов DCT с учетом их структурных особенностей

УДК

004

РУБ DOI: 10.1109/ATIT50783.2020.9349255

Аннотация: An approach to the construction of a code description of DCT transformants, taking into account the structural features of their binary representation, is presented. It is shown that the proposed model for constructing the code has the ability to reduce the initial number of bits, and also allows you to form a code description of the transformant by a set of independent code blocks. This makes it possible to use this coding method in a video bit rate control system.

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Havrylov, D. .
    Possible Ways of Video Processing at the Quantization Stage [Текст] / D. Havrylov, V. Yeroshenko, R. Onyshchenko, K. Zakomorna, M. Savchuk, O. Karaban // 2021 IEEE 4th International Conference on Advanced Information and Communication Technologies (AICT) : 21-25 Sept. 2021. - Lviv, 2021. - P. 51-55
   Перевод заглавия: Можливі способи обробки відео на етапі квантування

УДК

004

РУБ DOI: 10.1109/AICT52120.2021.9628893

Аннотация: The aim of the article is to build a method of video processing with the possibility of its protection at the stage of quantization with subsequent arithmetic coding. That will allow at preservation of structural - statistical regularity to provide a necessary level of availability, reliability and confidentiality at video data transmission. Providing the required level of availability involves reducing the video volume by 30% compared to the original volume. In this case, the provision of the required level of reliability is confirmed by estimating the peak signal-to-noise ratio for the authorized user, which is PSNRaBT 20 dB. Ensuring the required level of confidentiality is confirmed by estimating the peak signal-to-noise ratio for unauthorized access, which is PSNRHC 9 dB. The scientific novelty of the obtained results lies in the following: for the first time two methods of video image processing at the quantization stage are proposed. The method of using encryption tables has greater cryptographic stability, and the method of using the key matrix has greater speed. At the same time, the use of arithmetic coding will satisfy the need for availability by reducing the initial volume.

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