Silvio R. R. Sanches, Ildeberto A. Rodello, José Remo Ferreira Brega, Antonio Carlos Sementille.
Most Mixed Reality Systems based in existinglibraries do not allow that real elements obstruct virtualobjects when it is necessary. The present paper proposes theuse of the chromakey technique, implemented as anARToolkit library component, for real elements extractionand the OpenGL framebuffer manipulation to compose thescene coherently.
http://www.lbd.dcc.ufmg.br/colecoes/wrva/2007/002.pdf
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