METHOD FOR READING A TWO-DIMENSIONAL PIXEL MATRIX AND DEVICE FOR IMPLEMENTING SUCH A METHOD

摘要

The invention relates to a method for reading a two-dimensional matrix (12) of pixels of a detector, said matrix being organized in blocks of pixels (16) forming macropixels, each macropixel being read in a high resolution mode and / or a low resolution mode.According to the invention, this method comprises the steps of: ▪ when selecting (in 50) the high resolution reading mode for a macropixel, read (in 58) and store (in 60 ) the pixel values of the latter, so as to define a reference macropixel ▪ at the following high-resolution playback cycles of this macropixel (at 62), form (at 66) the difference between the read values of the pixels of it and the corresponding pixel values of the reference macropixel.