Appeal No. 1996-2047
Application No. 08/274,141
The invention relates to a method and apparatus for
correcting faults in the image produced by a detector in a
detector camera. When a scene is observed using a camera with
series, parallel or series-parallel scanning, the image formed
by the detector signal contains faults. To correct these
faults, it has been proposed to subtract a memorized image,
obtained by filming a uniform background, from the image of
the scene formed by the detector signals. The result obtained
by this type of process is not always satisfactory.
Appellants’ invention aims to avoid this drawback.
Appellants disclose on pages 2 and 3 of the specification that
the Appellants’ invention does not use a uniform grey
background which is placed in front of the camera to generate
signals to correct the image output by the camera. Instead,
Appellants’ invention operates to destructure the image of a
scene, for a given lapse of time, by making inconsistent
changes to the camera settings including modifying the focus
of the camera and modifying a direction of the camera line of
sight.
Independent claim 1 is reproduced as follows:
1. A method of correcting, in a camera with a detector
and opto-mechanical scanning, faults in the digital image of
2
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