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TeleAdvisor is a novel solution designed to support remote assistance tasks in many real-world scenarios. It consists of a video camera and a small projector mounted at the end of a tele-operated robotic arm. This enables a remote helper to view and interact with the workers' workspace, while controlling the point of view. It also provides the worker with a(More)
In this paper, we explore the practice of using a whiteboard for multiple tasks, and specifically how users employ whiteboards to smoothly transition between related sets of tasks. Our study underscores several basic, but important affordances of whiteboards that support this practice, including visual persistence, flexibility of interaction primitives, and(More)
In this paper we describe the in-progress work of the Pathlight navigation system for groups and individuals. Pathlight provides indoor navigation support in the museum using a handheld projector. We describe some of the advantages the system provides, look at some background, briefly describe some system features, and posit some open questions for further(More)
With the advance in multispectral imaging, image fusion has emerged as a new and important research area. Many studies have examined human performance with specific fusion methods, over the individual input bands; yet few comparison studies have been conducted to examine which fusion method is preferable over another. This paper presents four different(More)
In this paper we investigate user performance and user behavior, related to the issue of who controls the point of view in a remote assistance scenario. We describe an experiment that examined users completing two different tasks with the aid of a remote gesturing device under two conditions: when control of the camera and gesturing point of view was in the(More)
In an ideal robotic telepresence system the visitor would perceive and be perceived as being fully present at a remote location. This can happen if the visitor has a first person experience of the destination location including full sensory stimulation, and if the people at the remote location would be able to naturally perceive and interact with the(More)
Hypertext allows users to navigate between related materials in digital libraries. The most fundamental automated hypertexts are those constructed on the basis of semantic similarity. Such hypertexts have been evaluated by a variety of means, but seldom by real users given simulated real-world tasks. We claim that while other methods exist, one of the best(More)
Cultural heritage (such as museums, archeological sites etc) is both an appealing and challenging research area for applying novel information technologies. It is appealing because it provides a wide range of research possibilities and involves users that are generally willing to experience novel technologies. It is challenging because it requires the(More)