The project is concerned with: (1) mathematically isolating optical flow and texture variables as candidates for visual information useful is guiding flight maneuvers; and (2) assessing the functional utility of these variables in judgment experiments and in fully interactive simulation environments. The major contribution of the reported year's effort was the development of a technique for holding optical variables invariant throughout self-motion events. The method was used to factorially study fractional rates of change as information for acceleration, deceleration, and loss in altitude. Assessment of individual differences in sensitivity to these optical variables was initiated, and the constraints on degrees of freedom in choosing variables for factorial experimental designs were determined. Optical analysis of 256 Boeing 747 simulator landings has begun to explore the applicability of our approach to flight situations. Studies of this kind will be used to guide future judgment and interactive experiments. Implications of optical analysis for aviation safety are also reported. Lastly, a review of performance measurement in research on visual control of flight is presented. The review will guide our development of optical variables and invariants as measures of performance, under the assumption that pilots make control adjustments in order to control what they perceive. (Author)


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    Title :

    Optical Flow and Texture Variables Useful in Simulating Self Motion


    Contributors:
    D. H. Owen (author)

    Publication date :

    1982


    Size :

    225 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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