Кафедра програмної інженерії (ПІ)

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https://openarchive.nure.ua/handle/document/58

Перегляд

Перегляд Кафедра програмної інженерії (ПІ) за автором "Bugriy, A."

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  • Зображення мініатюри
    Публікація
    Intelligent Data Processing in Global Monitoring for Environment and Security
    (ITHEA, 2011) Bilous, N.; Bondarenko, M.; Borisenko, V.; Bugriy, A.; Ostroushko, A.; Kobzar, G.; Makivsky, D.
    The chapter is devoted one of possible approaches to automation in the field of the risk management, based on data processing of remote space monitoring of the spatially-distributed natural and technogenic objects for timely detection maintenance, diagnostics and the development predicate of the dangerous phenomena and emergencies. For acquisition of a digital image set for Earth's surface it is offered to use shooting from space satellites and unmanned aerial vehicles. We propose to eliminate a disadvantage inherent in standard unmanned aerial vehicles management schemes which are associated with a limited range of management through the use of digital imaging systems included in the control loop. The visualization system synthesizes a three-dimensional image of cockpit-exterior space on the basis of the unmanned aerial vehicles position and terrain. The set of mathematical methods and stage-by-stage procedures of computer processing of the space images are offered, allowing to make a preliminary filtration, to estimate them information compatibility, to carry out qualitative recognition, fixing and tracing of artificial objects. The considered integrated automation means complex provides necessary reliability and quality of achieved results, and also differs high speed that allows to use it and for the analysis of situations in real time.
  • Зображення мініатюри
    Публікація
    Mathematical model of the cloud for ray tracing
    (ITHEA, 2010) Bilous, N.; Ostroushko, A.; Bugriy, A.; Chagovets, Ya.
    The three-dimensional computer graphics claimed today in many fields of the person activity: producing of computer games, TV, animation, advertise production, visualization systems of out-of-cockpit environment for transport simulators, CAD systems, scientific visualization, computer tomography etc. Especially high are requirements for realism of generated images. Realism rising leads to image detail increasing, necessity of shadows and light sources processing, the account of an environment transparency, generation of various special effects. Therefore in the field of a computer graphics researches are intensively conducted for the purpose of development of as much as possible effective models for three-dimensional scenes and fast methods of realistic image synthesis on their basis. One of the most promising methods is a ray tracing. The method provides possibility of synthesis of high realistic images; however it demands the large computational cost for the realization. The cloud synthesis model for a ray tracing is described. The model is directed to a real time graphics and allows raising realism of the synthesized image. Advantages of proposed model are the ability of working with cloud on different levels of detail, availability of bounding surfaces inside of cloud structure that allows to increase efficiency of an image synthesis algorithm, ease of cloud animation. Due to the great flexibility of a cloud model and high performance of its visualization algorithm these results can be used in real time visualization systems.