1. МЕТОД КОДУВАННЯ ФРАГМЕНТІВ-КОНТЕЙНЕРІВ В СПЕКТРАЛЬНО-ПАРАМЕТРИЧНОМУ ПРОСТОРІ.
- Author
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Юдін, О. К., Коляденко, Ю. Ю., Цімура, Ю. В., and Єрошенко, В. П.
- Subjects
CRISIS management ,DATA transmission systems ,TELECOMMUNICATION systems ,ORGANIZATION management ,VIDEO compression ,VIDEO coding - Abstract
It is shown that trends in the development of information technologies for processing, coding and data transmission relate to the growing attractiveness of wireless infocommunication systems and networks. In modern conditions, such technologies are used to organize information support using unmanned ground-based and air-based systems. The significance of the use of wireless telecommunication technologies for the organization of management processes in crisis conditions is substantiated. The article substantiates an approach for constructing a technology for compression of fragments-containers using a preliminary transformation, which is based on: the formation of two constituent arrays of spectral components (ASC), namely: the vector of gradations of spectral space and the scale of spectral intervals; coding of the low-frequency component of the transformant based on taking into account statistical dependencies in the differential space. It is stated that this allows: to adapt to the structure of ASC, taking into account the different concentration of high-frequency components in fragments of video sequences and the different level of the quantization factor; identify additional structural patterns in the ASC; localize statistical redundancy due to the presence of correlation between adjacent fragments in the spectral-parametric description; reduce redundancy caused by the presence of uneven distribution of low-frequency components; create conditions for the use of parallel coding technology. A technology for encoding the scale of spectral intervals of spectral-parametric description ASC is being created. It is based on breaking down the ASC into two components: the length of the first sequence of non-significant elements; A sub-vector that consists of elements on a scale of spectral intervals with the exception of the first and last sequence of nonsignificant elements. It is proved that this allows: to identify additional structural regularities; localize statistical redundancy, create conditions for concealing confidential information using steganographic methods. The stages of the method of monotonic coding of a significant subvector of the scale of spectral intervals are described. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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