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Comparative studies involving CAVE systems inevitably have some confounding factors. Except for the six-sided CAVE systems, the missing back wall(s) of a CAVE system can be a confounding factor when virtual and physical navigation interaction techniques are compared, regarding the viewpoint rotation. We introduce a virtual black wall as a way to avoid a possible confounding factor in comparative studies...
In this paper, we propose a novel interface called Joyman, designed for immersive locomotion in virtual environments. Whereas many previous interfaces preserve or stimulate the users proprioception, the Joyman aims at preserving equilibrioception in order to improve the feeling of immersion during virtual locomotion tasks. The proposed interface is based on the metaphor of a human-scale joystick....
Teleoperated rescue robots designed to explore disaster scenes and find victims face serious limitations due to the cluttered nature of the environments as well as the rescue operators becoming stressed and disoriented in these scenes. An alternative to using teleoperated control is to develop fully autonomous controllers for rescue robots. However, these robots are also not capable of traversing...
In this paper, the authors developed an intuitive navigator system with 3D platform which is web-camera based tool for people to navigate the 3D contents of computer. As many head-controlled devices, users need not control computer by directly getting in touch with any equipment to avoid diseases from other users by using this navigator system. Although there are many navigators for people to control...
This keynote paper discusses the problem of outdoor mobility of the visually impaired and reviews key assistive technologies aiding the blind in independent travel. Space perception abilities important for mobility of the visually impaired are discussed first and related definitions and basic concepts such as: cognitive mapping, wayfinding and navigation are explained. The main mobility barriers the...
Performing general human behavior by experts' navigation is expected to be realized as wearable and ubiquitous technologies and computing develop. For simple, ordinary behavior, a person does not need the assistance of an expert. However, if one is standing next to an injured/ill person, one needs the instruction on performing first aid treatment from an expert. The wearer of the wearable behavior...
Current applications of mobile robots in urban search and rescue (USAR) environments require a human operator in the loop to help guide the robot remotely. Although human operation can be effective, the unknown cluttered nature of the environments make robot navigation and victim identification highly challenging. Operators can become stressed and fatigued very quickly due to a loss of situational...
Clinicians usually intend to get overall health status as well as specific health care information from patient's electronic health record (EHR). However, the amount of EHR data can be incredibly large, which makes it a very tedious and inefficient work for clinicians to extract valuable information. This paper first investigates the clinical relevance of EHR data content. Then it presents a Level...
This study proposes a VR-based tool, named ldquovirtual city,rdquo to evaluate wayfinding abilities that are reported to decline with some cognition dysfunctions, such as dementia. This platform was designed according to cognition theories and took advantage of convenience of real-time recording by using VR techniques to make the evaluations less subjective and more accurate. Our previous study has...
The experiences of a human system interface will be presented to understand how immersive perception helps to improve efficiency and to reduce the stress level of operators, thus increasing the speed and quality of decision making.
Paper introduced the concept of human body skeleton model, and discussed two kinds of commonly used 3D human body format. One is BVH file, currently the basis human body format supported by Poser and 3DMax. The other is H-ANIM standard, which is tightly integrated with VRML. Then we introduced VRML avatar explorer mode. Finally gives out a practical avatar animation application example in our developed...
With increased use of robots as a resource in missions supporting countermine, improvised explosive devices (IEDs), and chemical, biological, radiological nuclear and conventional explosives (CBRNE), fully understanding the best means by which to complement the human operatorpsilas underlying perceptual and cognitive processes could not be more important. Consistent with control and display integration...
This paper proposes expressive information visualization (IV) taxonomy to support cognitive and perceptual needs for decision support environment. Four key dimensions have been identified, namely representation, organization, interaction and content. The effects of these expressive dimensions on user satisfaction were examined. Results suggest that these dimensions are important and affect their satisfaction...
Today, e-commerce has achieved great developments. Consumers need visual interfaces to recognize patterns and to iteratively and dynamically compare attributes to get a match on what they need. This paper firstly discusses the relationship between information visualization and e-commerce Websites, secondly puts forward a number of key points used in the visual design of e-commerce Websites, thirdly...
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