Arrangement and method for correcting different transfer characteristic curves for segmented image sensors (CCDs)
AssigneeThomson Licensing
InventorWolfgang Steinebach
Life of this patent
Estimating the term…
Loading patent…
AssigneeThomson Licensing
InventorWolfgang Steinebach
Estimating the term…
The invention provides an arrangement and a method for generating electrical image signals from an image original. The arrangement is, for example, a film scanner which illuminates or transilluminates a photographic image on a film using an illumination device. Optical signals generated hereby are converted into electrical signals by a CCD sensor subdivided into segments. The segments of the CCD sensor are connected via mutually independent readout channels to a signal processing stage, where the electrical signals of the readout channels are combined with one another in such a way that these represent a total image. Furthermore, an adjustment unit is provided which adjusts the transfer functions of the different segments of the sensor with respect to one another in such a way that visible image disturbances are avoided.
Arrangement for generating electrical image signals from an image original, having an illumination device for illuminating or transilluminating an image and having a light-sensitive element in order to convert optical signals into electrical signals, the light-sensitive element being subdivided into a plurality of segments which are read out via mutually independent readout channels, and, in a signal processing stage, the electrical signals of the readout channels being combined in such a way that these represent a total image, characterised in that an adjustment unit is provided which adjusts the electrical signals of adjacent pixels at the segment border with respect to one another in order to avoid visible image disturbances.
Method for scanning images, the method comprising the following steps:
Dependencies are inferred from the claim text.