G - Physics – 09 – B
Patent
G - Physics
09
B
354/4
G09B 9/36 (2006.01) G09B 9/30 (2006.01) G06T 15/50 (2006.01)
Patent
CA 1079855
ABSTRACT OF THE DISCLOSURE A night visual aircraft system receives flight data from an aircraft simulator, and terrain data from the gaming area data base. A computer within the night visual system organizes this image data by frame in a buffer memory according to a particular format of addresses, sequences, and bit places. The following types of image data are uniquely positioned in the format: A position vector (Vp), defining the changing posi- tion of the aircraft with respect to the terrain data origin. Rotational matrix data defining the changing attitude of the aircraft with respect to the axes of the terrain coordin- ate system. Initialization vectors (Vi), defining the position of certain landmark terrain lights with respect to the origin of the terrain data. Delta data, defining the position of other lights with respect to the landmark lights. String data, defining the spacing, color, intensity, and number of lights in a string of lights having equal spacing and intensity. CIF data, defining the color, intensity, and defocus of individual lights. Transfer data which is coded to identify the type of the subsequent data. An image processor receives the formatted image data and translates delta data into a light source vector (Vls) defining the position relationship between each light source and the air- craft; rotates the Vls into channel vectors (Vc) according to the window orientation and the attitude (pitch, yaw and roll) of the aircraft; and projects each three-dimensional Vc into a two- dimension display vector (Vd). An image generator receives the Vd and other image data to provide analog inputs to a CRT device which provides a window display in the simulated aircraft.
244623
Chen Wei L.
Marsh David R.
Osofsky Raymond C.
Na
Singer Company (the)
LandOfFree
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