TECHNIKI ROZPOZNAWANIA TWARZY

The problem of face recognition is discussed. The main methods of recognition are considered. The calibrated stereo pair for the face and calculating the depth map by the correlation algorithm are used. As a result, a 3D mask of the face is obtained. Using three anthropomorphic points, then constructed a coordinate system that ensures a possibility of superposition of the tested mask.Omawiany jest problem rozpoznawania twarzy. Rozważane są główne metody rozpoznawania. Użyta zostaje skalibrowana para stereo dla twarzy oraz obliczanie mapy głębokości poprzez algorytm korelacji. W wyniku takiego, uzyskiwana jest maska twarzy w wymiarze 3D. Użycie trzech antropomorficznych punktów, a następnie skonstruowany systemu współrzędnych zapewnia możliwość nakładania się przetestowanej maski

Сжатие графической информации с использованием тематических текстур

To decorate surface of terrain thematic textures are used. It is supposed that observer is not often interested in the exact photographic information about the wide areas covered, for instance, by forest, water, etc., so that the benefits of photographic texture can be obtained by composing a number of patterns called "themes" to produce a final texture of the specific area. The goal of using thematic textures is to abolish the need of the global area texture, and additionally, animation features become available by simple means

Интерактивный пользовательский интерфейс для создания функционально заданных объектов

Разработан способ визуального представления свободных форм и аналитических возмущений для интерактивного предварительного моделирования. Создан интерактивный редактор сцен с возможностью сохранения результата, как в виде файла сцены, так и в виде растрового изображения

Influence of El Niño on parameters of the middle and upper atmosphere over Eastern Siberia according to reanalysis and model data in winter

One of the most important climate-forming phenomena in the ocean—atmosphere system is the El Niño Southern Oscillation (ENSO) events, which manifest themselves with varying intensity in almost all regions of the globe. The central regions of Eurasia are farthest from the tropics of the Pacific Ocean, the regions where ENSO originates. There are different points of view regarding the nature of the ENSO effect on these regions. In the presented work, the influence of ENSO on the upper atmosphere of the Northern Hemisphere and, in particular, on the upper atmosphere of Eastern Siberia is estimated using model calculations and reanalysis data. The results of the analysis show that the large-scale structures of the atmospheric response to the ENSO events in the Northern Hemisphere are similar according to modeling and reanalysis, yet the regions of Eastern Siberia are on the periphery of the main signal and there are significant differences in estimated effects from one case of El Niño and La Niña to another. In January, ENSO has the greatest impact on the middle atmosphere of the polar regions of the Northern Hemisphere. Over Eurasia and Eastern Siberia, the atmospheric response to the ENSO events turned out to be weak or absent

Research on saliva’s cation composition in people with gastrointestinal tract’s pathology

Розглянуто питання зв’язку між патологіями шлунково-кишкового тракту та змінами концентрацій мікроелементів у слині людини. Показано зменшення вмісту катіонів у слині при формуванні та розвитку патологічного процесу у шлунково-кишковому тракті. Розглянуто питання зв’язку між патологіями шлунково-кишкового тракту та змінами концентрацій мікроелементів у слині людини. Показано зменшення вмісту катіонів у слині при формуванні та розвитку патологічного процесу у шлунково-кишковому тракті. Connection between alimentary canal diseases and microelements’ concentrations in saliva is under consideration. It is shown, that the cations’ concentration in saliva decreases during development of the gastrointestinal tract pathology

Functional and morphological changes of the mucous membrane of the stomach after long application of proton pump inhibitors

Changes of mucous membrane of rats’ stomach after long term application of proton pump inhibition – Omeprazole. Increase of pepsin concentration, volume and рН in both fasting and basal gastric juice in comparison with the control was observed. It is established that the content of nitrates and nitrites in gastric juice and in the rats’ mixed saliva after the 12th day of introduction of proton pump inhibitors is 3:1

History of neurosurgery: from origins to present day

The article refers to the evolution of neurosurgery in different periods of history. The author reveals the problems of surgical methods for treating diseases of the nervous system from the primitive era to the present, considering the data of Indian tribes, the European continent, the Arabian Peninsula and Russia. The conclusion is made about the high potential for the development of neurosurgery as a science.В этой статье говорится о развитии нейрохирургии в разные периоды истории. Автор раскрывает проблемы хирургических методов лечения заболеваний нервной системы от первобытной эпохи до современности, рассматривая данные индейских племен, Европейского континента, Аравийского полуострова и России. Делается вывод о высоком потенциале развития нейрохирургии как науки

Comparative analysis of two-dimensional and three-dimensional modeling of heat transfer during operation of a gas infrared heater indoor

Relevance. It is proposed to heat local work areas with systems based on gas infrared heaters, capable of directing radiative heat flow to reduce heating costs in large premises. However, the widespread use of gas infrared heaters is hampered by the existing difficulties with the preliminary assessment of convective-radiative heat flows movement, on which the number and location of heating devices depends. The preliminary assessment is complicated by the need in some cases for 3D modeling of complex physical processes. It is necessary to evaluate the possibility of replacing labor-intensive 3D modeling with a method for calculating a heating system using gas infrared emitters based on a 2D approach to reduce the time spent on calculations. Aim. To prove that the use of a two-dimensional model of the processes under consideration makes it possible to obtain the main characteristics of the thermal regime of the premises, making it possible to replace spatial modeling. Objects. Heating system with a light-type gas infrared heater and an air exchange system. Methods. Two-dimensional and three-dimensional mathematical modeling of conjugate heat transfer processes using the finite element method. Mathematical modeling was carried out in the COMSOL Multiphysics software environment using the modules: “Heat Transfer Interface in Liquids”, “Radiation between Surfaces” and “Turbulent Flow, k-ε Interface”. Results. The article presents the results of mathematical modeling performed in three-dimensional and two-dimensional formulations. The distribution of temperatures in the air and enclosing structures, as well as the flow lines of heated air and air, which was heating, in the volume of the premise are presented. The results of two-dimensional and three-dimensional modeling were compared. Satisfactory similarity of the calculated average air temperatures in the local working area was established based on the results. The difference was less than 2℃ for different spatial modeling approaches

Shadows generation using geometry shaders

Algorithms for simulating shadows are considered. A shadow volume method using geometry shaders is proposed