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Medellín, Colombia

Mateus S.P.,Polytechnic Colombiano JIC | Branco J.W.,National University of Colombia
Informacion Tecnologica | Year: 2012

In this paper, a character reference model, based on its perception and reasoning, with the objective of achieving visual realism in an Intelligent Virtual Environment (IVE) is proposed. The necessary steps for obtaining the model are: i) to identify the characteristics of the objects and of the virtual character of the IVE; ii) design of the IVE model; iii) specification of the Artificial Intelligence technique (AI); iv) defining the physical level and semantic system for the integration of the character with the environment; v) validation of the proposed model in a prototype; and vi) evaluation of the results. The proposed model allows generating an appropriate dynamics between the character en the elements of the virtual environment, which is required in several applications. Source

In the existing techniques of Artificial Intelligence, two Artificial Neural Networks (ANN) were selected and adapted to fit one of the elements that define a Non-Uniform Rational B-Spline (NURBS) and thus obtaining an appropriate modeling of the NURBS. The selected elements were the checkpoints. The ANN used were the Radial Basis Function and the Kohonen model or Self-Organizing Maps. Based on the analysis of the results and characterization of the ANN the Radial Basis Function had a more appropriate and optimum performance for a large number of data, which is a disadvantage of the Self-Organizing Maps. In this model, additional processes must be done to determine the winning neuron and the weights must be refitted. Source

This work shows the development of a Virtual Environment of the campus Poblado of the Colombian Polytechnic Jaime Isaza Cadavid, using virtual reality techniques. This with the aim of obtaining a model of the physical plant of the institution to project its image through a friendly graphical interface based on 3D technology. The work was developed following three main steps: i) characterization of the physical and virtual design of the model, for which 3DMax and Maya of Autodesk were selected among the several tools for 3D modeling and Unity as graphics engine; ii) creation of UV mapping; and iii) texturing process. The results of the proposed virtual environment allow the user to navigate around the institution and interact with the different spaces as done with a video-game. Source

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