Design and implementation for a bimanual input system on virtual environments

Abstract

Recently, immersive projection technology (IPT) systems such as CAVE and CABIN have attracted great attention. InIPT systems, since we can experience virtual environments with whole body, these can provide high immersive virtual environments. To interact with virtual environments easily, IPT systems often adopt one-handed input systems. However, by using bimanual input systems, their operationality, e.g., walking-through and pointing, can be improved. Although there are several bimanual input systems for virtual environments, these have not been used for IPT systems. In this paper, we propose a bimanual input system for IPT systems. In our proposed system, users wear compact joysticks on both hands and their hands' positions are detected by magnetic sensors. By using the system, users can interact with the virtual environment in the IPT system. From our evaluations, we confirmed that our proposed system provides fast and easy operations in virtual environments.

Development of support system for estimation of earthquake fault plane with hypocenter data

“…Obtain the empirical semivariogram using the variogram cloud by specifying the number of division( Figure 6(c)). 4. Select the semivariogram model and estimate the parameters based on the empirical semivariogram.…”

“…In addition, the 2D GUI provided by the wearable computer simplifieds some operations which become complex when using 3D displaying. The complete list of supported operations and functions are described in reference [4]. For the suppot system for earthquake analysis, we used CAVERings for walk-through in the 3D space and for fine-tuning the estimating fault plane.…”

“…Earthquake experts can be immersed in a virtual space of hypocenter data distribution to understand the 3D structure more intuitively by using high presence 3D display system with IPT. In addition, we have developed a bimanual input based control interface for IPT systems [4] to enable an intuitive user interaction with 3D displayed data. Moreover, we focused on a support tool for estimating fault planes based on hypocenter data distribution.…”