Mario Nagamura

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In this paper we present our experience in using Virtual Reality Technologies to accurately reconstruct and further explore ancient and historic city buildings. Virtual reality techniques provide a powerful set of tools to explore and access the history of a city. In order to explore, visualize and hear such history, we divided the process in three phases:(More)
Hang-gliding is a very enjoyable sport, provided in many tourist places. But many people are still afraid to fly in such system or unable to travel to Rio de Janeiro. Using virtual reality we developed a virtual tour over Rio de Janeiro. In this system the user can see the city and its beautiful sights from a different perspective providing a safe and fun(More)
This work presents our experience in using Virtual Reality techniques to digitally reconstruct the downtown of São Paulo city in the year of 1911. Particularly, the reconstruction of old downtown São Paulo could bring relevant information regarding its culture, history and economy. In order to achieve an accurate 3D representation, the process was divided(More)
We present OrbeVR, a handheld concave spherical perspective-corrected display. OrbeVR displays combined images projected by multiple calibrated high-performance laser pico-projectors positioned inside a translucent sphere. Users position and OrbeVR are tracked, so the spherical display renders head-coupled perspectives with stereoscopic depth cues. OrbeVR(More)
In this work we present an interactive and collaborative 3D object manipulation system using off the shelf mobile devices coupled with Augmented Reality (AR) technology that allows multiple users to collaborate concurrently on a scene. Each user interested in participating in this collaboration uses both a mobile device running android and a desktop (or(More)
Inspired by principles for designing musical instruments we implemented a new 3D virtual instrument with a particular mapping of touchable virtual spheres to notes and chords of a given musical scale. The objects are metaphors for note keys organized in multiple lines, forming a playable spatial instrument where the player can perform certain sequences of(More)
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