Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-11-07
1991-07-23
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358107, 358109, H04N 718
Patent
active
050348124
ABSTRACT:
Apparatus for processing the image seen by a television camera viewing the surroundings of an aircraft has a store of topographical mapping information and object data stores which contain information about the appearance, location and size of objects in the area to be viewed. The apparatus derives information as to the location of an object in the field of view and determines where the line of sight of the object from the camera intercepts the stored topographical mapping. The range of the object is determined trigonometrically from its location relative to a corresponding part of the stored topographical mapping and the position of the aircraft. New objects are indicated when they are not present in the object data stores. The angle subtended by an identified object is compared with the known size of the object to provide another indication of range. An indication of the size of the object can be provided from knowledge of its range and the angle subtended.
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Kostak Victor R.
Smiths Industries Public Limited Company
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