Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1977-02-25
1978-08-15
Hum, Vance Y.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
35 12N, 358104, G09B 902
Patent
active
041062183
ABSTRACT:
A servo controlled target replica, and a surface bearing a computer generated line drawing of an object are individually viewed by separate television cameras allowing a two-dimensional composite of the target replica and the object to be displayed on a monitor simulating what an observer would see through a window in a spacecraft. The target replica is coded along one self coordinate axis in such a way that the distance of an elemental area on the target along the axis is capable of being remotely readout by a television camera. A third television camera responsive to the code reads out this information by which the Z-coordinate, relative to the observer, can be calculated, on-line with the scan, for the contents of each picture element of the scene televised by the target camera. The computer calculates the X, Y, Z-coordinates relative to the observer for the contents of each picture element of the scene televised by the object camera; and a comparator compares the Z-coordinates for corresponding picture elements of both scenes in order to determine which camera is to be blanked from the monitor so as to create the illusion that either the target or the object is closer to the observer. The range and aspect of the object is directly controlled by manual inputs to the computer in order to create the illusion of movement of the object relative to the observer and to the target. Realism is further enhanced by creating, on the target, the shadow cast by the object.
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Elson, B. M.; "Color T.V. Generated by Computer to Evaluate Space Borne Systems", Aviation Week & Space Technology, Oct. 30, 1967, pp. 78-82.
Lockwood, L. W., "Visual Simulators for Moon Men", Optical Spectra, Oct. 1971, pp. 32-35.
Hum Vance Y.
Manning John R.
Porter George J.
The United States of America as represented by the Administrator
Wofford, Jr. L. D.
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