Patent ID: 7365771

Claim:
Camera apparatus comprising a digital camera arrangement arranged to provide a first image signal corresponding to an infra-red field of view and a second image signal corresponding to a visible field of view, wherein said visible and infra-red fields of view overlap or share a common field of view, and said apparatus includes a signal combiner for combining the second image signal with information from the first image signal and a signal analyser for analysing said first signal for detecting and determining the location of an infra-red target within the field of view of the camera apparatus, the signal analyzer being arranged to derive a target location signal indicative of the location of the infrared target included in the first image signal, and further including circuitry connected to be responsive to information in the first image signal for deriving a picture control signal, the signal combiner being arranged to be responsive to (a) the target location signal, (b) the picture control signal, and (c) the second image signal for deriving at least one desired parameter for a detector arrangement for the visible field of view of the camera.