Method for Correcting the Space Noise of an Image Sensor by Luminescence Limitation

A method of processing signals obtained from the pixels of a matrix image sensor, this method comprising the following steps:

• the signal obtained from each pixel during a large number of successive images is collected;
• for each pixel, an approximate value of an average of the signal obtained from the pixel during this large number of images is determined;
• the signal obtained from each pixel is instantaneously corrected according to the determined approximate average value and a reference average value common to all the pixels,
• a corrected signal is transmitted from the circuit associated with the pixel,
• wherein the approximate average is obtained by determining high and low limit values taken by the signal obtained from the pixel during the large number of images, and by calculating a median between these high and low limit values.