Education and demonstration – Vehicle operator instruction or testing – Flight vehicle
Patent
1990-08-02
1992-02-25
Coven, Edward M.
Education and demonstration
Vehicle operator instruction or testing
Flight vehicle
273437, 358183, 340725, G09B 900, H04N 522
Patent
active
050909096
ABSTRACT:
Sources of video signals representing an object (e.g. an aircraft), optionally movable, and a scene provide data stored in frame stores (b 1,5). Distance (optionally variable) from the observer of the object and near and far distances at transitions between features in the scene are stored respectively in frame store (4) and (7a, 7b). Within the boundaries of the object and in the neighborhood of the lines of transition, between features of the scene, quantities stored in object and scene stencil frame stores (3, 6) vary from 0 to 1. All frame stores are read simultaneously, driven by a microprocessor (2), the picture point scanning element sequentially. A comparator (11) compares distances, and the results of the comparison, together with the values stored in the stencil frame stores, determine the tone displayed at each element. Near features obscure distant ones, and sharp transitions are softened.
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Cawley Robin A.
Keller Paul R. N.
Stapleton Alan L.
Coven Edward M.
Harrison Jessica J.
Quantel Limited
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