Patent ID: 6885397

Claim:
A process for correcting noise level in an image detector, the image detector comprising: a matrix of photosensitive points arranged in at least one row and at least one column, a first number of the photosensitive points forming detector groups configured to be exposed to a luminous cue and to provide first measurement values of an intensity of the luminous cue and a second number of the photosensitive points forming corrector groups configured not to be exposed to the luminous cue and to provide second measurement values corresponding to a dark value to correct the first measurement values; and an acquisition and processing circuit configured to accept the first and second measurement values and to perform correction of the first measurement values based on the second measurement values, the process comprising: distributing on at least one row at least two detector groups and at least two corrector groups; and correcting the first measurement values with the second measurement values for each of the at least two detector groups.