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We developed SmartTool as a part of a study of augmented reality. In this paper, we introduce micro spidar. The design goal was to enable micro spidar to support micro operations at a millimeter-scale. We report a trial implementation showing the modality transformation of brightness information of the surface condition into a sensation of force feedback.
This paper shows the latest results of our artificial embryogeny model (Cussat-Blanc et al., 2007). In nature, cells are able to specialize their functions. This specialization allows the creation of cells groups that perform the same function, commonly named tissues. To perform a specific action, tissues are grouped in organs. The cell specialization happens at different stages in the organism's...
This paper describes a novel interface named the K-eXplorer that provides the user with a multiple access channel to information of the real-world objects by using a smart phone (K-tai in Japanese) that people carry at almost all times. The K-eXplorer system presents interfaces to obtain information of objects in the real-world by a smartphone so that an information space is overlaid and mixed to...
The use of virtual reality may provide a user with an extraordinary tool for appreciation and exploration of art museums. In case of time-spatial works-of-art, typical of contemporary art museums, the problem of functionalities representation is very demanding, and the use of virtual reality becomes very important for high-fidelity artwork reproduction. The goal of this paper is to contribute in assessing...
This paper presents a method for improving accuracy of marker-based tracking using a 2D marker for augmented reality. We focus on that tracking becomes unstable when the view direction of the camera is almost perpendicular to a marker plane. Especially, tracking of Z axis which is perpendicular to the marker plane (X-Y) becomes unstable. For improving tracking accuracy in this case, we search rotation...
This paper presents a supporting system for pool games by computer vision based augmented reality technology. Main purpose of this system is to present visual aids drawn on a pool table through LCD display of a camera mounted handheld device without any artificial marker. Since a pool table is rectangle, a pool ball is sphere and each has a specific color, these serve as a substitute for artificial...
A method of real-time recognition of body motion for virtual dance collaboration system is described. Fourteen feature values are extracted from motion captured body motion data, and the dimension of data is reduced by using principal component analysis (PCA). In the training phase, templates for motion recognition are constructed from training samples of several types of motion. In the recognition...
We proposed a first person shooter for both hands with multiple mouse devices, which are not used in existing games. Players control their movement and shooting separately using dual guns for both hands. For two-hand usage, we designed a display method for multiple mouse pointers. First, we loaded typical physical driver into the memory and registered our developed multiple mouse device driver instead...
In this paper, we propose the new technique that recovers camera parameters from images of orthogonal directions of a moving object, no metric information on the model plane requires. Our approach only requires four observations and each of them provides a vanishing point from its two parallel lines; such four vanishing points provide three independent constraints. Using these points and proposed...
It is known that peripheral vision strongly contributes to the sense of self-motion, and that users of visual displays with a narrow field of view often find it hard to experience such sensations fully. In this research, we propose a peripheral display that augments the feeling of self-motion. This consists of simple displays that stimulate the user's peripheral area of vision. By changing the stimulus...
This paper proposes a new virtual reality-based skill transfer and human resource development system for casting design, which is composed of the explicit and tacit knowledge transfer systems using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, whereby...
Because nowadays, it is difficult to cope with the daily working routine, private life or leisure activities without using the computer or the internet, our Expertise and Reference Center in Berlin and Bonn present possibilities of how people with disabilities can use Information and Communication Technologies (ICT) on an equal footing. The Project "barrierefrei kommunizieren!", i.e. Nationwide...
Present augmented reality systems are isolated islands with no or little capability to receive 3D information from the outside world. In this paper we describe how Google Earth can be used to transform the physical world into an AR mailbox. We demonstrate a system where a mobile phone AR environment can be defined and advertised by a portal, using a simple visual/tangible approach. The focus has been...
This article presents a support on the remote interaction for utilization in augmented reality systems based on ARToolkit. It utilizes the multicast communication in order to improve the scalability of distributed environment. This support may be utilized in production of specific applications pointed to distance education, training and entertainment. The validity of support happened with the implementation...
A classic problem in the development of mixed reality systems is the registration. The correct alignment between virtual objects and the real elements is extremely important for the coherent composition of the resultant scene. Considering this context, this paper describes an approach for the composition of scenes in mixed reality environments using the chromakey technique for the extraction of real...
The following topics are dealt with: artificial reality; telexistence; tracking; display; interaction; haptics; augmented reality; modeling; and rendering.
This paper discusses the potential of force perception technologies for realizing hand-held devices in the field of social systems. We introduce an interactive system based on force perception technology called "come over here, or catch you!", which is a force-sensation-based navigation system for waiters. It consists of our new hand-held haptic interface which can provide perceptually continuous...
In this paper, we firstly push or pull real and virtual rheology objects by the same displacement or force sequence. Then by minimizing the difference between shape or force sequences of real and virtual objects, we calibrate many parameters of rheology MSD (mass-spring-damper) model, pull-off force model and friction force model between a rigid object and its pushing or pulling rheology one. The...
In the field of computer aided surgery, augmented reality (AR) technology has been successfully used for enhancing accuracy of surgery and making surgeons convenient by visually assisting them in performing a number of complicated and time-consuming medical operations. However, there are still medical operations that do not receive the benefit of AR technology. As a representative one, surgeons still...
LUMAR is a hybrid system for spatial displays, allowing cell phones to be tracked in 2D and 3D through combined egocentric and exocentric techniques based on the LightSense and UMAR frameworks. LUMAR differs from most other spatial display systems based on mobile phones with its three-layered information space. The hybrid spatial display system consists of printed matter that is augmented with context-sensitive,...
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