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This paper describes research, development and teaching applications in area of parallel, distributed and network computing systems for solving computational processes in the processing of graphics data and virtual reality with a primary focus on information systems, intelligent interfaces, including the development of network communication environments,(More)
Emotions are one of those phenomena which are rarely seen in connection with exact disciplines such as computer science or information technologies. However, with the widespread use of computer systems we see nowadays, the demand to include emotions to reasoning of artificial systems emerged and formalized emotional models have been created. In this paper(More)
At our department, students can study virtual reality technologies and their problematic (Department of computers and informatics, Faculty of Electrical Engineering and Informatics of Košice - DCI FEEI TU of Košice). Study of virtual reality technologies is divided into two parts. First part focus on theoretical knowledge and second part(More)
SUMMARY This paper describes the PNtool-a tool for a design, analysis and development of concurrent and time-critical systems based on the Petri nets (PN) formalism. The PNtool supports four Petri nets dialects, which are also described in the paper: Generalized Petri nets, Time-basic nets, Evaluative and Coloured Petri nets. The Generalized PN are the(More)
This paper deals with computer graphics, human body detection and application of computer graphics in avatar control. The main goal of this work is to design and create virtual training system including avatar using contactless sensors. Authors focus on the control of the humanoid avatar by applying transformations to his skeleton. To achieve this, proper(More)
This paper deals with a support tool for an automation of simulation of Coloured Petri nets and selected simulation experiments conducted with the aid of the tool. The tool is called CPN Assistant, it has been developed at the home institution of the authors and cooperates with the CPN Tools software. It allows to run and manage multiple customized(More)
This work represents a new solution for augmented reality systems for desktop computers with Windows OS and mobile devices specifically with Android OS. It describes and explains the basic aspects and principles of augmented reality, and at the same time it analyzes problems of the actual implementation of such systems. After this analysis, two separate(More)
The belief-desire-intention (BDI) model is one of the most prominent models for designing artificial intelligent agents. Being relatively simple the BDI model doesn't take into account several aspects of human reasoning, including the role of emotions. The work presented in this paper contributes to the recent effort to extend the BDI model and its(More)
This paper deals with the parallel raytracing part of virtual-reality system PROLAND, developed at the home institution of authors. It describes an actual implementation of the raytracing part and introduces a Coloured Petri Nets model of the implementation. The model is used for an evaluation of the implementation by means of simulation-based performance(More)