automatic control of the focusing of a video camera for industrial and military purposes.

摘要

The invention relates to a device and a method for optimising the focusing of a video image (62) of an object (7), the video camera (1) being used for controlling a manipulating device (2). The video camera (1) is focused on the basis of an optimisation of the mean brightness (13) of the picture elements (64) within a frame (63) enclosing the object image (62) in the focus control unit (5). The mean brightness (13) of the brightness distribution (11) of the object image (62) assumes an extreme value with good focusing and is easily distinguishable from the brightness distribution (12) of the background. The manipulating device (2) can be an industrial robot (21) by means of which a workpiece (71) or tool (72) can be treated. As a further possibility, the manipulating device (2) can be used in the form of a platform (22) for tracking a target (73). …IMAGE… …IMAGE…