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We propose a new interaction technique, called PseudoButton, which emulates a pressure-sensitive touch sensor by repurposing a built-in microphone on mobile devices. This simple and novel technique increases input expressivity of the device and expands its interaction area for users to alleviate the occlusion problem caused by touchscreens without adding(More)
It is difficult to navigate virtual environment as in real world and to interact with other participant in virtual environment, especially wearing Head-Mounted Display (HMD). We developed Virtual Office Environment System (VOES), and avatar is used to navigate and to interact with other participants. For easy and intuitive control of avatar motion in the(More)
We present an efficient multigrid algorithm that is adequate to solve a heavy linear system given in cloth simulation. Although multigrid has been successfully applied to the Poisson problems, it is hard to migrate to complicated cloth deformations due to its lack of physical meaning in level construction. We addresses this problem by developing a(More)
This paper proposes user-customizable passive control widgets, called MagGetz, which enable tangible interaction on and around mobile devices without requiring power or wireless connections. This is achieved by tracking and ana-lyzing the magnetic field generated by controllers attached on and around the device through a single magnetometer, which is(More)
This paper introduces <i>MagPen</i>, a magnetically driven pen interface that works both on and around mobile devices. The proposed device is accompanied by a new vocabulary of gestures and techniques that increase the expressiveness of the standard capacitive stylus. These techniques are: 1) detecting the orientation that the stylus is pointing to, 2)(More)