A method and apparatus for performing a shading correction of image signals picked up by an optical detector array in which the period of x image signals can be prolonged by sampling of the image signal after reading reference signals and the speed of line memories can be reduced when carrying out an...http://www.google.fr/patents/US4806780?utm_source=gb-gplus-shareBrevet US4806780 - Image correction method and apparatus with partial detector array sampling
Image correction method and apparatus with partial detector array sampling