圓﨑 祐貴

This paper proposes a new system architecture that includes human action. The system is composed of three parts; sensing, processing, and actuation. Based on the concept, a virtual museum with a spatial immersive display and a locomotion interface was developed. It provides a physical walking experience in the virtual exhibition space. We developed a digital twin of the Artizon Museum as the system’s content. The locomotion interface records the walking trajectory of the participant, which represents their action in the virtual exhibition space. The system was implemented and operated in public for four weeks.

This paper describes about project “Data Sensorium” launched at the Asia AI Institute of Musashino University. Data Sensoriumis a conceptual framework of systems providing physical experience of content stored in database. Spatial immersive display is a key technology of Data Sensorium. This paper introduces prototype implementation of the concept and its application to environmental and architectural dataset.

<p>The "Big Robot" has two legs with wheels, mounting the pilot at 5m height position. The robot goes forward according with the motion of the feet of the pilot. It is programed to make trajectory of head position of 5m giant. Thus, the pilot feels as if his/her body were extended to 5m giant. The biggest technical issue in large-scale robot is falling down to the ground. Thus, the base frame of BigRobot is made of steel and its linkages are made of CFRP. This structure enables low center of gravity and prevents from falling down. The Big Robot was exhibited at Ars Electronica Festival 2015, Tsukuba Media Art Festival 2015 and Emerging Technologies of SIGGRAPH 2016, that proved its effectiveness.</p>

<p>In this study, we developed a novel immersive display with the world's largest encapsulated space, the LargeSpace. The display consists of an immersive screen, 12 projectors, 10 computers, and 20 motion-capture cameras. To stitch projected images continuously, the screen has not only flat shape, but also toroidal and cylindrical surfaces. We optimized the position and attitude of the projectors for filling the screen with pixels and minimizing perceived occlusion. The motion capture system derives the position of user's eyes and the cluster computers generate user's perspective in the virtual world. We discussed today's best implementation of large immersive displays and mentioned about screen shapes, projection systems, optimum projector arrangement and position tracking systems. Additionally, we proposed a method to compare a front projection system with a rear projection system by the size of the effective area users can walk around without impairing a large display's field of view. Additionally, we mentioned the "Bird Song Diamond Project in Japan" (BSD). BSD uses the LargeSpace and motion base system to deliver an artistic experience.</p>

This paper presents a locomotion interface using torus-shaped treadmill. Traveling on foot is the most intuitive way for locomotion. An infinite surface driven by actuators is an ideal device for creation of sense of walking. The Torus Treadmill employs 14 sets of treadmills. These treadmills are connected side-by-side and driven in perpendicular direction. The effect of infinite surface is generated by the motion of the treadmills. The walker can go in any direction while his/her position remains localized in the real world. The device has modular structure that enables portability for exhibition. It was exhibited in Ars Electronica 2011 in Linz Austria

This paper presents a work carried out for a project to develop a new interactive technique that combines haptic sensation with computer graphics. The project has two goals. The first one is to provide users with a spatially continuous surface on which they can effectively touch an image using any part of their bare hand, including the palm. The second is to present visual and haptic sensation simultaneously by using a single device that doesn't oblige the users to wear any equipment. In order to achieve these goals, we have developed balloon array volumetric haptic display named Volflex. The Volflex, however, has small range of displayed volume. In this paper, we focus on expanding the ability to present varied shape of virtual object from flat surface to volumetric surface. We designed a new volumetric haptic display named Volflex+. It is composed of a group of air balloons controlled by air cylinders. Each air cylinder is attached to a linear actuator so that each balloon is able to move up/down. This configuration drastically expands presented volume..

Device art is a new concept of art that shows essence of technology. Works of device art are often created in bottom-up process. The Device Art Toolkit is a tool for creation of these works. It is intended to achieve usability as well as scalability. The toolkit has modular structure consisting of control modules, input modules, output modules and communication modules. It also has actuator modules. The structure enables easy try-and-error in creation process.