Automatic focusing control of a video camera for industrial and military purposes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 14, 1991
Grant Date -
N/A
app pub date -
Jul 17, 1989
filing date -
Jul 28, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video camera is used for controlling the adjustment of a manipulator unit. An object is imaged by the video camera which is optimumly focused with respect to the object as a function of the mean brightness of a predetermined image from containing the image of the object. The focusing operation is carried out on the basis of obtaining an optimum value for the mean brightness of the image elements within the predetermined image frame enclosing the object image. The manipulator unit may contain an industrial robot for selectively adjusting either one of a workpiece or a tool acting upon a workpiece. Furthermore, the manipulator unit may contain a target tracking platform for tracking a target constituting the object imaged by the video camera.
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Cited Art Landscape
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