Software & Systems

Journal articles №3 2009

21. Universum technique of development of the management information system of enterprises [№3 за 2009 год]
Author: (vlad@email.kht.ru) - ;
Abstract: The article is about the universum technique witch based on the idea of ranging functions of enterprise sectors as to the quality of material and information streams. Such technique allows carrying out an integration of existing management information systems of an enterprise into unified system. It also creates a universal base for the development of new principles of designing and organizes work of various enterprises in common information space.
Keywords: common information space, automatized control system, automatized system integration, design automation, system architecture, framework of organization, information system, stratification, information stream, control information, universum
Visitors: 14231

22. Distributed allocated information space and portal of modern simulator [№3 за 2009 год]
Authors: Yanyushkin V.V. (vadim21185@rambler.ru) - The Center for Space Simulator Development and Personnel Training (Deputy General Manager), Ph.D;
Abstract: The author gives modern positions of data-processing centers and cloud computing in the appendix to designing architecture of complex simulators. Conceptual model of construction distributed information space and portal hierarchical structure gives as perspective development which have united advantage of this approaches.
Keywords: information interfaces, cloud computing, data-processing centre, portal, simulator
Visitors: 13046

23. Physically based model of light propagation in a fabric [№3 за 2009 год]
Authors: (voloboy@gin.keldysh.ru) - , Ph.D; A.G. Voloboy (voloboy@gin.keldysh.ru ) - Keldysh Institute of Applied Mathematics of RAS (Leading Researcher), Ph.D; (voloboy@gin.keldysh.ru) - , Ph.D;
Abstract: A new original approach to simulation of light propagation in a fabric is discussed in the paper. The approach is based on a confirmed assumption that cloth yarns are scattering media. The paper proposes a way to calculate the yarn’s Bi-directional Sub-Surface Scattering Reflectance Distribution Function (BSSRDF) via a Monte-Carlo ray tracing simulation of scattering and absorption of light within yarn’s volume. Then Bi-directional Reflectance Distribution Function (BRDF) of a yarn is obtained by integrating the yarn’s BSSRDF over the yarn’s surface which is approximated by a cylinder. The elaborated method produces visually plausible results and demonstrates qualitative agreement of light scattering by virtual model of cloth and real cloth sample. The light scattering of a real cloth is acquired via direct measurement performed with a proprietary measurement apparatus.
Keywords: BRDF measurement, volume scattering, surface reflection, BRDF, physically based lighting, cloth simulation
Visitors: 9242

24. Analysis of problems in design and implementation of information systems in high schools [№3 за 2009 год]
Authors: (alkena.aktaeva@gmail.com) - , ;
Abstract: In the publication the urgency of designing of information-technological systems and features of their introduction in educational process contains. Functions and structure of information-technological system in educational process are described. The information maintenance of administrative activity of the chief of school constructed on creation of information systems enables to lower difficulties and to expand sphere of information use.
Keywords: decision-making support system, informational streams, unified system of the documentation, information subsystem, information retrieval system, corporate information system
Visitors: 13825

25. Reconstruction of planar objects from microscopic images [№3 за 2009 год]
Authors: (vgaganov@graphics.cs.msu.ru) - , Ph.D; (ignatenko@graphics.cs.msu.ru) - , Ph.D;
Abstract: In this paper we propose a new method for 3D reconstruction of planar objects from a set of microscopic images. We present a novel unreliable depth estimates rejection procedure for shape from focus family of algorithms. Also we introduce a new method to determine if a plane can be reliably estimated from a number of points in 3D space. Results of experiments on real world data, demonstrating high precision and reliability of a proposed method, are presented.
Keywords: plane fitting, robust parameters estimation, shape from focus, 3D-reconstruction, computer vision
Visitors: 15171

26. Stars selection algorithm for celestial orientation [№3 за 2009 год]
Authors: (Krujeelov@mail.ru) - ; O.Yu. Shamayeva (shamayevaoy@mpei.ru) - National Research University “MPEI” (Associate Professor), Ph.D;
Abstract: In the following article it is adduced math formulation of stars selection problem in astronavigation. It is given general description of stars selection method, which uses as basis criterion the constancy of mutual digression between the particles. It is substantiated the use of line model for analysis of changing the distance between 2 focuses.
Keywords: velocity selection, star tracker, astronavigation
Visitors: 10386

27. System for models of the material reconstruction from images [№3 за 2009 год]
Authors: (ledokol4@mail.ru) - ; (ignatenko@graphics.cs.msu.ru) - , Ph.D;
Abstract: Polygonal models of the objects from the real world often are used in virtual reality scenes. A lot of methods for creation and reconstruction of polygonal models are available nowadays. The acquisition of complex realistic models of the reflectance properties of materials and their photorealistic interactive rendering are still important problems in the computer graphics. In this work we focus on the process of the acquisition of the complex realistic models of reflectance properties of the material of the real world objects from their photographs.
Keywords: clusterization, phong’s model, BRDF, material reconstruction, image-based rendering, render
Visitors: 14062

28. The morphological and typological analysis of structures transport knot [№3 за 2009 год]
Authors: Klavdiev A.A. (kss59@mail.ru) - National Mineral Resources University (University of Mines), Ph.D;
Abstract: In work the information-statistical approach of the morphological and typological analysis of structures transport is considered.
Keywords: an extreme principle, the information-statistical approach, the uncertainty factor, polycriteriational problem statement
Visitors: 8603

29. Method of an estimation of probability of acceptance of erroneous decisions at the discriminant analysis of transport knots [№3 за 2009 год]
Authors: (tmp@nwpi.ru) - , Ph.D;
Abstract: Using diskriminants models in transport nodes, it is sufficiently often bring about wrong decisions. So finding to probability such mistakes exceedingly it is important, to term of the tense motion and manoeuvre of the transport units particularly. The method finding happens in work to probability such mistake and their estimations.
Keywords: system, mistake (error), probability, mathematical model, transport
Visitors: 11343

30. Complex verification of results forecasting characteristics transport system [№3 за 2009 год]
Authors: Arefiev I.B. (i.arefyev@am.szczecin.pl) - Marine Academy, Ph.D; Klavdiev A.A. (kss59@mail.ru) - National Mineral Resources University (University of Mines), Ph.D; (kss59@mail.ru) - , Ph.D;
Abstract: In work authors offer the scientifically-methodical device of complex verification results the forecast characteristics transport system for the purpose of maintenance validity accepted decisions in the course of logistical management.
Keywords: criterion, uncertainty, verification, the forecast
Visitors: 13917

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