Method and device for the FPN correction of image signals

Details Method and device for the FPN correction of image signals Method and device for the FPN correction of image signals

2003-09-30

2008-09-02

Hannett, James M. (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S255000

Reexamination Certificate

active

07420599

ABSTRACT:
A device for the FPN correction of image signals which are generated by image cells of an image sensor comprises a discriminator for determining in which value range out of at least two value ranges a value of an image signal of an image cell is located at a predetermined instant of time. The result determined by the discriminator is feed to a correction device. The correction device selects correction coefficients from a plurality of sets of correction coefficients as a function of the result determined by the discriminator, and a transformation unit calculates the corrected value for the image signal by using the selected correction coefficients.

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