Algoritmo de vergencia para o controle de atenção de humanos virtuais

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Common research problems treated in literature about Virtual Humans are most related with insertion and representation of these graphic agents in computers. With techological advance and new researches in Computer Graphics and Virtual Reality, new problems can have place, related to the funcionality of the virtual agents. Currently, one of the main challenges is associated to development of virtual humans with realistic virtual perception and a specific problem that appears, related to synthetic vision in these agents, is the proper control of attention. That is, to define and provide an efficient and natural manner for it to change attentional focus from a current position to another one in its virtual environrnent. Coordination of head movements by way of fixation of eyes in a desired object is not considered a trivial task, being related to depth perception. In this work, we propose an algorithm for vergence, used for attention control in virtual humans, where the depth parameter is obtained from Z-buffer. Control of virtual human head movements is preformed with simple geometric calculations and at the end of vergence process the eyes are correctly fixed in any interest region of the environment, previously given to the virtual agent

ASSUNTO(S)

synthetic vision computação grafica algoritmos visão - processamento de dados vergence algorithm realidade virtual virtual humans

ACESSO AO ARTIGO

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