Ulis | Date: 2012-03-09
An infrared radiation detection device comprising: a substrate; a matrix of at least one line of elements for detecting said radiation, each comprising a resistive imaging bolometer, said matrix being formed above the substrate; means for reading the bolometers of the matrix, means for measuring the temperature in at least one point of the substrate; and means for correcting the signal formed from each bolometer as a function of the temperature measured in at least one point of the substrate. The correcting means are capable of correcting the signal formed from the imaging bolometer by means of a predetermined physical model of the temperature behaviour of said signal.
Ulis and French Atomic Energy Commission | Date: 2013-12-13
Ulis | Date: 2015-04-24
The invention concerns a method of image processing involving: receiving, by a processing device, an input image (IB) captured by a pixel array sensitive to infrared radiation; determining, based on the input image and on a column component vector (VCOL), a first scale factor () by estimating a level of the column spread present in the input image; generating column offset values (.VCOL(y)) based on the product of the first scale factor with the values of the vector; determining, based on the input image and on a 2D dispersion matrix (IDISP), a second scale factor () by estimating a level of the 2D dispersion present in the input image; generating pixel offset values (.IDISP(x,y)) based on the product of the second scale factor with the values of the matrix; and generating a corrected image (IC) by applying the column and pixel offset values.
Ulis | Date: 2013-02-20
A method corrects a gain table by a correction of the response dispersion of resistive bolometers of a bolometric detector of a bolometer retina. The method includes: where:
Ulis and French Atomic Energy Commission | Date: 2011-04-11
An electromagnetic radiation detection device including multiple elementary detectors (