Vol 14, No 2 (2023)
Improving quality of video stream from the unmanned aerial vehicle technical vision system
Abstract
The study contains the results of work on the software and hardware complex to improve the quality of video data obtained from unmanned aerial vehicles. Including the tasks of independent video-flow images deconvolution (motion blur removal) and stabilization of the video stream using machine learning and artificial intelligence methods. Analytical and practical results are presented that allowed to choose solutions for processing data from UAVs in real time.
Program Systems: Theory and Applications. 2023;14(2):3-26
3-26
Simulation the behavior of a two-level quantum system using scalable regular grids
Abstract
The paper demonstrates a method for constructing a grid with a changing scale for modeling the behavior of a two-level quantum system. The method was proposed and implemented in relation to the problem of reproducing the behavior of graphene in external electric fields using the quantum kinetic equation. A direct numerical solution of the kinetic equation makes it possible to accurately and completely reproduce the behavior of models of this type. But a large amount of computation is required for a good quality reproduction of the observed parameters. The complexity of the problem is directly proportional to the number of grid nodes in the two-dimensional space of states, in each of which a system of ordinary differential equations is solved to reproduce the evolution of the population of the upper energy level. The study of the behavior of the model made it possible to develop and implement an economical procedure for constructing a computational grid, which ensures the localization of the region of formation of excited states and exact reproduction of the observed process parameters.
Program Systems: Theory and Applications. 2023;14(2):27-47
27-47
June 2022 Top500 List Overview
Abstract
The article is devoted to the analysis of the current state of the supercomputer industry in the world and in Russia and the prospects for its development. In terms of methodological approach and tools, this article is a continuation of a series of similar analytical reviews by the authors. The novelty of this work is not only in updating the information, taking into account the latest editions of the Top500 list, but also in focusing on the following: the global supercomputer industry is undergoing a radical restructuring — the transition from the «petascale era» to the «exascale era». Russia will have to make the same transition with some delay. Therefore, it is important to understand technological trends and features of solutions for the most powerful systems in the world in recent years. This circumstance is given special attention in the work. And such an emphasis on trend analysis is one of the motivational goals of this work.
Program Systems: Theory and Applications. 2023;14(2):49-93
49-93