Yuuki Uranishi

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Tablet PCs and smartphones rapidly become popular nowadays. People can touch objects on the touch panel display of the tablet PC or smartphone, but only get sensation of touching the surface of the display. Recently, some systems capable of inserting themselves into the display by using retractable stylus have been proposed. <i>Beyond</i> [Lee and Ishii(More)
This paper proposes a three-dimensional measurement system with a simple structured system. The proposed system consists of a camera with a fish-eye lens and a cylinder whose inside is coated by a silver reflective layer. A target object is placed inside the cylinder and an image is captured by the camera from right above. The captured image includes sets(More)
This paper describes a novel game system which provides multiple players with a sense of touching fire with their own hands. Players in this game are divided into two teams in front of a wall-type flat display and try to score points by grounding a fireball on the other team's court like volleyball. The players can recognize their contacts with the fireball(More)
The animation of such granular material as sand and grain is difficult to render in computer graphics. There are no standard methods for modeling their motions, because their non-linear behavior, which is ruled by the loss of energy, occurs when the discrete particles collide. Therefore, methods for rendering granular materials have not been studied widely.(More)
This study proposes a method to estimate elastic deformation using silhouettes obtained from multiple endoscopic images. Our method can estimate the intraoperative deformation of organs using a volumetric mesh model reconstructed from preoperative CT data. We use this elastic body silhouette information of elastic bodies not to model the shape but to(More)
This paper proposes a new design of overlayable transmis-sive color marker. Each marker is transparent and the marker has different colors, and outside of the marker is a region for estimating order of the overlay. ID patterns are detected from overlaid markers by splitting an input image in red, green and blue channel image. The overlaid order is estimated(More)