ࡱ> q`bjbjqPqP; :: +&&&&&&&&)))8)*&z2*(Z*p*p*p*p*2**$ hr&*p*p***&&p*p*4,,,*&p*&p*ݞ,*,,.k`&&rp*&* 0e)b+n@ɞJ0z5oX,jrr8&s+**,*****l,X***z****&&&)&&&)&&&&&&&&& Resumo: O recente avano nas tecnologias e no mercado de Realidade Virtual vem abrindo novas oportunidades de interao e imerso. Juntamente com isto, tcnicas mais acuradas de viso computacional, inteligncia artificial e sensores de profundidade permitem realizar com mais preciso mapeamentos do mundo real, transpondo diversas informaes para o cenrio virtual. De fato, o conceito de realidade mista tem se tornado mais popular e inclusive substitudo a terminologia de realidade virtual ou realidade aumentada, em muitos casos. Neste trabalho observamos que a tradicional taxonomia de Milgram e Colquhoun no so capazes de abranger com exatido o potencial e as capacidades da realidade mista. Assim sendo, propomos inicialmente uma extenso de tal taxonomia e propomos o conceito de Realidade Virtual Pervasiva (RVP), sendo este um ambiente acrescido de elementos reais/fsicos, incorporados ao ambiente virtual como objetos e usando dispositivos sensveis ao contexto (por exemplo, sensores e tecnologia wearable). Alm disto, propomos um detalhamento de requisitos e caractersticas da RVP, capaz de descrever a engenharia deste tipo de sistemas. Propomos tambm uma arquitetura e uma implementao de um sistema que atende parcialmente estes conceitos. Como prova de conceito, apresentamos a incorporao deste sistema em um game engine comercial, bem como exemplificamos seu uso em uma implementao prtica. Palavras-chave:  FORMTEXT Realidade Mista, Virtualidade Pervasiva, Pervasividade, Cincia de Contexto  Abstract: Recent advances in virtual reality (VR) technologies have fostered a growing market with new opportunities for immersive and interactive applications. Additionally, robust techniques currently available for visual computing, artificial intelligence, and depth sensors enable accurate mapping of real objects to virtual and mixed reality environments. Indeed, mixed reality has become a popular concept in applications, surpassing virtual reality and augmented reality in some cases. In this work we argue that traditional mixed reality taxonomy (by Milgram and Colquhoun) is inaccurate to describe the potential opportunities of mixed realities. Hence, in this work we propose an extension to this traditional mixed reality taxonomy through Pervasive Virtuality (RVP), as a mixed reality environment coupled with real/physical objects and context-aware devices (e.g. sensors, wearable devices). We also propose a set of RVV requirements to design RVP-based systems, along with an architecture and a system that fulfills some of these requirements. As a proof of concept, we present a system implementation using commercial game engine. 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