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Variable-Resolution Displays: A Theoretical, Practical, and Behavioral EvaluationThe Johns Hopkins University, Baltimore, Maryland
The Johns Hopkins University, Baltimore, Maryland Variable-resolution display techniques present visual information in a display using more than one resolution. For example, gaze-contingent variable-resolution displays allocate computational resources for image generation preferentially to the area around the center of gaze, where visual sensitivity to detail is the greatest. Using such displays reduces the amount of computational resources required as compared with traditional uniform-resolution displays. The theoretical benefits, imple-mentational issues, and behavioral consequences of variable-resolution displays are reviewed. A mathematical analysis of computational efficiency for a two-region variable-resolution display is conducted. The results are discussed in relation to applications that are limited by computational resources, such as virtual reality, and applications that are limited by bandwidth, such as internet image transmission. The potential for variable-resolution display techniques as a viable future technology is discussed.
Human Factors: The Journal of the Human Factors and Ergonomics Society, Vol. 44, No. 4,
611-629 (2002) This article has been cited by other articles:
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