Everton Francisco P. Dantas,  Claudio Kirner. 

Virtual reality and augmented reality are areasthat allow the development of interactive threedimensionalvisual applications working in real time. Virtual reality usesconventional and non-conventional devices to implementuser interaction, but augmented reality minimizes thesedevices. This paper presents an experience on theimplementation of the duck court application, using virtualreality with Vizard and augmented reality with ARToolKit.

http://www.lbd.dcc.ufmg.br/colecoes/wrva/2007/004.pdf

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