6 research outputs found

    Tactile Displays for Pedestrian Navigation

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    Existing pedestrian navigation systems are mainly visual-based, sometimes with an addition of audio guidance. However, previous research has reported that visual-based navigation systems require a high level of cognitive efforts, contributing to errors and delays. Furthermore, in many situations a person’s visual and auditory channels may be compromised due to environmental factors or may be occupied by other important tasks. Some research has suggested that the tactile sense can effectively be used for interfaces to support navigation tasks. However, many fundamental design and usability issues with pedestrian tactile navigation displays are yet to be investigated. This dissertation investigates human-computer interaction aspects associated with the design of tactile pedestrian navigation systems. More specifically, it addresses the following questions: What may be appropriate forms of wearable devices? What types of spatial information should such systems provide to pedestrians? How do people use spatial information for different navigation purposes? How can we effectively represent such information via tactile stimuli? And how do tactile navigation systems perform? A series of empirical studies was carried out to (1) investigate the effects of tactile signal properties and manipulation on the human perception of spatial data, (2) find out the effective form of wearable displays for navigation tasks, and (3) explore a number of potential tactile representation techniques for spatial data, specifically representing directions and landmarks. Questionnaires and interviews were used to gather information on the use of landmarks amongst people navigating urban environments for different purposes. Analysis of the results of these studies provided implications for the design of tactile pedestrian navigation systems, which we incorporated in a prototype. Finally, field trials were carried out to evaluate the design and address usability issues and performance-related benefits and challenges. The thesis develops an understanding of how to represent spatial information via the tactile channel and provides suggestions for the design and implementation of tactile pedestrian navigation systems. In addition, the thesis classifies the use of various types of landmarks for different navigation purposes. These contributions are developed throughout the thesis building upon an integrated series of empirical studies.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

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               āļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļāļēāļĢāļŠāļ­āļ™āļ­āļ­āļ™āđ„āļĨāļ™āđŒāđāļšāļšāđ€āļ›āļīāļ”āđ€āļžāļ·āđˆāļ­āļĄāļŦāļēāļŠāļ™ (MOOC) āļ—āļģāđƒāļŦāđ‰āļœāļđāđ‰āđ€āļĢāļĩāļĒāļ™āļŠāļēāļĄāļēāļĢāļ–āđ€āļ‚āđ‰āļēāļ–āļķāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļ—āļĩāđˆāđ€āļ›āđ‡āļ™āļ›āļĢāļ°āđ‚āļĒāļŠāļ™āđŒāđ„āļ”āđ‰āđ‚āļ”āļĒāđ„āļĄāđˆāļ–āļđāļāļˆāļģāļāļąāļ”āļ”āđ‰āļ§āļĒāđ€āļ§āļĨāļēāđāļĨāļ°āļŠāļ–āļēāļ™āļ—āļĩāđˆ āđāļ•āđˆāļˆāļēāļāļœāļĨāļāļēāļĢāļĻāļķāļāļĐāļēāđ€āļĢāļ·āđˆāļ­āļ‡āļ­āļąāļ•āļĢāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļŠāļģāđ€āļĢāđ‡āļˆāļ‚āļ­āļ‡āļœāļđāđ‰āđ€āļĢāļĩāļĒāļ™āļĒāļąāļ‡āļ­āļĒāļđāđˆāđƒāļ™āļĢāļ°āļ”āļąāļšāļ•āđˆāļģāļĄāļēāļ āļ‹āļķāđˆāļ‡āļĄāļĩāļŠāļēāđ€āļŦāļ•āļļāļĄāļēāļˆāļēāļāļŦāļĨāļēāļĒāļ›āļąāļˆāļˆāļąāļĒ āļ”āļąāļ‡āļ™āļąāđ‰āļ™ āļ„āļ“āļ°āļœāļđāđ‰āļ§āļīāļˆāļąāļĒāļˆāļķāļ‡āļŠāļ™āđƒāļˆāļĻāļķāļāļĐāļēāļ›āļąāļˆāļˆāļąāļĒāļžāļ·āđ‰āļ™āļāļēāļ™āļ”āđ‰āļēāļ™āđ‚āļ„āļĢāļ‡āļŠāļĢāđ‰āļēāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļĢāļđāđ‰ (Structuring Learning Content) āļ—āļĩāđˆāļĄāļĩāļœāļĨāļ•āđˆāļ­āļāļēāļĢāļĒāļ­āļĄāļĢāļąāļšāļāļēāļĢāđƒāļŠāđ‰āđ€āļ—āļ„āđ‚āļ™āđ‚āļĨāļĒāļĩāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļāļēāļĢāļŠāļ­āļ™āļ­āļ­āļ™āđ„āļĨāļ™āđŒāđāļšāļšāđ€āļ›āļīāļ”āđ€āļžāļ·āđˆāļ­āļĄāļŦāļēāļŠāļ™ āļ‹āļķāđˆāļ‡āļ­āļēāļˆāļŠāđˆāļ§āļĒāđƒāļŦāđ‰āđ€āļ‚āđ‰āļēāđƒāļˆāļ›āļąāļˆāļˆāļąāļĒāļ—āļĩāđˆāļŠāđˆāļ‡āļœāļĨāļ•āđˆāļ­āļ„āļ§āļēāļĄāļŠāļģāđ€āļĢāđ‡āļˆāļ‚āļ­āļ‡āļœāļđāđ‰āđ€āļĢāļĩāļĒāļ™ āđ‚āļ”āļĒāļ‡āļēāļ™āļ§āļīāļˆāļąāļĒāļ™āļĩāđ‰āļĄāļĩāļ§āļąāļ•āļ–āļļāļ›āļĢāļ°āļŠāļ‡āļ„āđŒ (1) āđ€āļžāļ·āđˆāļ­āļĻāļķāļāļĐāļēāļœāļĨāļāļĢāļ°āļ—āļšāļ‚āļ­āļ‡āļ›āļąāļˆāļˆāļąāļĒāļ”āđ‰āļēāļ™āđ‚āļ„āļĢāļ‡āļŠāļĢāđ‰āļēāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļĢāļđāđ‰ āļ—āļĩāđˆāļĄāļĩāļœāļĨāļ•āđˆāļ­āļāļēāļĢāļĒāļ­āļĄāļĢāļąāļšāđ€āļ—āļ„āđ‚āļ™āđ‚āļĨāļĒāļĩāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļāļēāļĢāļŠāļ­āļ™āļ­āļ­āļ™āđ„āļĨāļ™āđŒāđāļšāļšāđ€āļ›āļīāļ”āđ€āļžāļ·āđˆāļ­āļĄāļŦāļēāļŠāļ™ (2) āđ€āļžāļ·āđˆāļ­āļŠāļĢāđ‰āļēāļ‡āđāļšāļšāļˆāļģāļĨāļ­āļ‡āļœāļĨāļāļĢāļ°āļ—āļšāļ‚āļ­āļ‡āļ›āļąāļˆāļˆāļąāļĒāļ”āđ‰āļēāļ™āđ‚āļ„āļĢāļ‡āļŠāļĢāđ‰āļēāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļĢāļđāđ‰āļ—āļĩāđˆāļĄāļĩāļœāļĨāļ•āđˆāļ­āļāļēāļĢāļĒāļ­āļĄāļĢāļąāļšāļāļēāļĢāđƒāļŠāđ‰āđ€āļ—āļ„āđ‚āļ™āđ‚āļĨāļĒāļĩāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļāļēāļĢāļŠāļ­āļ™āļ­āļ­āļ™āđ„āļĨāļ™āđŒāđāļšāļšāđ€āļ›āļīāļ”āđ€āļžāļ·āđˆāļ­āļĄāļŦāļēāļŠāļ™ āļ„āļ“āļ°āļœāļđāđ‰āļ§āļīāļˆāļąāļĒāđ€āļĨāļ·āļ­āļāļāļĨāļļāđˆāļĄāļ•āļąāļ§āļ­āļĒāđˆāļēāļ‡āđāļšāļšāļŠāļļāđˆāļĄāļˆāļģāļ™āļ§āļ™ 30 āļ„āļ™ āđāļĨāļ°āđƒāļŦāđ‰āđ€āļ‚āđ‰āļēāđ€āļĢāļĩāļĒāļ™āļŦāļĨāļąāļāļŠāļđāļ•āļĢāđƒāļ™āļĢāļ°āļšāļš MOOC āļˆāļēāļāļ™āļąāđ‰āļ™āđƒāļŦāđ‰āļ•āļ­āļšāđāļšāļšāļŠāļ­āļšāļ–āļēāļĄāđāļšāļšāļĄāļēāļ•āļĢāļēāļŠāđˆāļ§āļ™ 5 āļĢāļ°āļ”āļąāļš āđāļĨāđ‰āļ§āļ™āļģāļœāļĨāđ„āļ›āļ§āļīāđ€āļ„āļĢāļēāļ°āļŦāđŒāđ‚āļ”āļĒāđƒāļŠāđ‰āļŠāļ–āļīāļ•āļīāđ€āļŠāļīāļ‡āļžāļĢāļĢāļ“āļ™āļē āļœāļĨāļāļēāļĢāļ§āļīāļˆāļąāļĒāļžāļšāļ§āđˆāļēāļ›āļąāļˆāļˆāļąāļĒāļ”āđ‰āļēāļ™āđ‚āļ„āļĢāļ‡āļŠāļĢāđ‰āļēāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļĢāļđāđ‰āļĄāļĩāļœāļĨāļ•āđˆāļ­āļāļēāļĢāļĒāļ­āļĄāļĢāļąāļšāđ€āļ—āļ„āđ‚āļ™āđ‚āļĨāļĒāļĩ MOOC āđāļĨāļ°āļŠāļēāļĄāļēāļĢāļ–āļŠāļĢāđ‰āļēāļ‡āđāļšāļšāļˆāļģāļĨāļ­āļ‡āļœāļĨāļāļĢāļ°āļ—āļšāļ‚āļ­āļ‡āļ›āļąāļˆāļˆāļąāļĒāļ”āđ‰āļēāļ™āđ‚āļ„āļĢāļ‡āļŠāļĢāđ‰āļēāļ‡āđ€āļ™āļ·āđ‰āļ­āļŦāļēāļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļĢāļđāđ‰āļ—āļĩāđˆāļĄāļĩāļœāļĨāļ•āđˆāļ­āļāļēāļĢāļĒāļ­āļĄāļĢāļąāļšāļāļēāļĢāđƒāļŠāđ‰āđ€āļ—āļ„āđ‚āļ™āđ‚āļĨāļĒāļĩ MOOC āļŠāļģāļŦāļĢāļąāļšāđƒāļ™āļ­āļ™āļēāļ„āļ• āļ„āļ“āļ°āļœāļđāđ‰āļ§āļīāļˆāļąāļĒāļŠāļ™āđƒāļˆāļĻāļķāļāļĐāļēāļ›āļąāļˆāļˆāļąāļĒāļ­āļ·āđˆāļ™āđ† āļ—āļĩāđˆāļĄāļĩāļ­āļīāļ—āļ˜āļīāļžāļĨāļ•āđˆāļ­āļœāļĨāļŠāļąāļĄāļĪāļ—āļ˜āļīāđŒāļ—āļēāļ‡āļāļēāļĢāđ€āļĢāļĩāļĒāļ™āļāļēāļĢāļŠāļ­āļ™āļ­āļ­āļ™āđ„āļĨāļ™

    Wearable tactile display of directions for pedestrian navigation:comparative lab and field evaluations

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    A Direct Experimental Comparison of Back Array and Waist-Belt Tactile Interfaces for Indicating Direction

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    ABSTRACT Research has shown that two popular types of wearable tactile displays, a back array and a waist belt, have successfully aided pedestrian navigation. Each type has its proponents and each has been reported as successful in experimental trials. However, it is not clear which of the two is more effective for tactile-based navigation. In this short paper, we summarise the results from a direct experimental comparison of the back array and waist belt approaches. Results indicated that the tactile belt allowed participants to perform significantly faster and more accurately than the tactile back array
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