Akira Sakuraba

An Input Method for High-Resolution Large 2D Desktop Environment Using Wireless Device with Joystick

Recent year, many high resolution and large representation environments are proposed and there are a lot of installations is around us. These solutions can be applied to general purpose, use case of display environments became diversified by users intention. High resolution and large desktop environment is one of them. However, interaction by generic mouse and keyboard is not intuitive method, this input method forces interaction burden for user. In this paper, we show an input method for such environment using a wireless device. In this method, user holds a wireless device instead of standard mouse during interaction. In ultra-high resolution display, such as tiled display environment, input system should consider input resolution. We designed to ensure two-different input resolution detection by device movement and joystick manipulation. Also we describe evaluation result of fundamental design of our work in this paper.

Proposal of High Realistic Sensation System Using the Large Scale Tiled Display Environment

In this paper, we propose high realistic sensation system that uses Large Scale Tiled Display Environment. We have constructed the presentation system that users can share space and various user interactions with remote users. In the previous research, we constructed the digital traditional crafting system that had used the Immersa Desk System and the Tiled Display System on 16 displays. In this paper, we propose the super-presence system in Large Scale Tiled Display Environment that pursues high immersive sensation, and, we propose the system configuration and the video avatar generation method over the ultrahigh-speed network. We think that it becomes possible to experience a new presentation space to integrate a real space and a virtual space by using this system. For instance, the application in various fields of the medical field, the welfare field, and the educational field is assumed.

A Unified Large Scale Disaster Information Presentation System Using Ultra GIS Based Tiled Display Environment

In this paper, as a result of the great damage suffered by the Great East Japan Earthquake, we propose the Integrated Disaster Management Support System that utilizing the Large Scale High-Definition Visualization Unit (Tiled Display Wall) in the disaster countermeasures headquarters established in each local government, when a large-scale disaster occurs. In this system, the various damage information and evacuation center information transmitted from various communications infrastructures and communication devices are included in the integrated disaster management support system on the large scale high-definition visualization unit installed in the disaster countermeasures headquarters. Therefore, we aim at the construction of a total management system that can be managed in a unified manner according to a category for information indispensable to disaster countermeasures headquarters, such as a evacuation center image, the number of evacuees, a collapsed houses condition and road damage condition.

Tiled Display Environment to Realize GIS Based Disaster Information System

Understanding of damage information in disaster situation is the most important role for emergency response headquarters in order to provide relief action. Although responder in actual large-scale disaster situation could not deal damage situation easily that is ascribable to difficulty for understanding of spatiotemporally damage information. This paper proposes a GIS based disaster situation displaying and sharing approach system for represent disaster damage information at emergency response headquarters in large-scale disaster, to provide association between geolocation and multimedia content which is taken into disaster affected area. Our approach presents images of damage situation upon digital map on a high resolution single and large sized display, allows helping of damage by detail of damage situation in specific area not only showing it. We designed system architecture, use case of system and human computer interaction under operation for damage situation collection on large scale tiled display system. This system can be connected multiple counter disaster sites each other with disaster controlling network in an effort to share digital pictures and/or videos of disaster situation. We also discuss task oriented intuitive input method for our disaster information GIS. We will use some tablet devices in each site to make considerations interaction of system with multiple users.

Proposal of Disaster Management Support System Using Tiled Display Wall Environment

In this paper, we used the Great East Japan Earthquake as a learning experience, propose the disaster management support system used in the disaster countermeasures headquarters. This system is based GIS (geographical information system) using high-resolution Tiled Display Wall. The all functions of this system cooperates with GIS displayed on the Tiled Display Wall, and provides users with various interactions. By using this system, it becomes possible to manage all information in a unified manner in the disaster countermeasures headquarters. By consolidated management of information, the prompt action to various situations is attained in the disaster countermeasures headquarters.

A GIS Based Disaster Status Sharing and Representation System Using Ultra Definition Display Environment

In case of large scale disaster has been broken out, a large number of disaster damage information are reported from over wide area to disaster countermeasure headquarters. Modern disaster management GISs have limitation of number of statuses at the same time, it suggests restriction of efficiency in case of catastrophic disaster. On the other hand, sharing of damage situation is performed asynchronously in actual disaster management operation, appropriate sharing of status might be a kind of difficult task in disaster management. This paper describes a proposal design of disaster information representation GIS based system on large scale and ultra definition display system. We designed proposal system intents to represent detailed disaster status and wide-areas one with compatibility as well as to provide multiple users disaster information, by using Tiled Display Wall environment. Proposal system provides tablet based intuitive interaction device for user who handles geolocation information, not just conventional interaction method. We consider this system is operated with dedicated network which provides persistent connectivity even though normal time broadband networking is disabled or exceedingly limited.

A Method for User-Location Estimation for Intuitive Input System on Very Large Display Space

Ultra high resolution display environments have highly efficiency for displaying high definition multimedia content. Tiled display wall (TDW) wall environment is a typical ultra high definition display environment, they use a traditional mouse in order to interact with user of application on display space, and this might to be caused of interaction burden for the user. We developed an intuitive input method considered display space scale independent design using video game input device until now, this system requires exact user-location in front of display space. In this paper, we consider a user-location estimation method in front of display space, applicable to our intuitive input interaction device system. This estimating method uses some depth sensors device in addition to infrared beacon illuminating device and beacon analyzing process in current input method.

Wireless Interface System for Large Space in Tiled Display System

Tiled display is very effective display device in visualization task. So far, many tiled display systems were proposed with different approaches. However those are not designed as human computer interactive devices for under such environment. The conventional mouse and keyboard devices force burden and confine of user interaction to the master node. In this paper, we propose a wireless input device system for desktop environment on the tiled display system. This system allows to provide instinctive mouse pointing function and hotkey input features and replace the ordinary input devices so as to reduce the burden of user interactions.

Experimental Evaluation on Transmission and Display of Ultra-Resolution Video on Tiled Display Wall in JGN-X Testbed

In order to realize high-realistic sensation telecommunication over Wide-Area Network, we consider that non-verbal communication play an important role, and displaying the existence of participant by ultra-quality video in real-time on large-scale screen system between each remote site is effective. However, displaying a video with realistic high-resolution in real-time is difficult, because there is a limit in the display resolution of video image captured by a single camera. In existing researches, we have constructed the telecommunication environment to display ultra-resolution video streaming by multi-transmitting each video which captured by multiple cameras with the tiled display wall which is a technology to display various high-quality visualization contents by configuring the large-scale display with two or more LCD panels. However, the adjustment of each camera position is necessary to display an ultra-resolution video by combination of boundary area between each captured video, we have studied on the effect of position setting of multiple cameras. Based on these studies, we have conducted an experimental evaluation on ultra-resolution video transmission and display on tiled display wall between remote sites in JGN-X testbed in this paper.

The Information Sharing System Using Web-GIS at the Time of Wide-Scale Disaster

Each local government dispatches the municipal employee to the disaster site in order to check on the damage at the time of wide-scale disaster. The municipal employee take damage images with a digital camera etc., and bring image data back to the disaster countermeasures headquarters. Then, the municipal employee project damage images on a projector and report damage situations. However, this method takes much time for the disaster countermeasures headquarters to grasp damage situations. This may be unable to take a prompt action to disaster sites. In this research, we built the system which reports damage situations to the disaster countermeasures headquarters quickly at the time of wide-scale disaster. In this system, the images and animations of the disaster are automatically mapped on Web-GIS in real time. Thereby, users become possible confirming damage situations at one view from Web-GIS.