The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2012
Filed:
Mar. 26, 2008
Gilles Chamming's, Grenoble, FR;
Gilles Chamming's, Grenoble, FR;
Comissariat A l'Energie Atomique, Paris, FR;
Abstract
The invention relates to matrix image sensors, and it relates more particularly to a method for correcting the spatial noise generated by the dispersion of the physical properties of the different individual sensitive dots, or pixels, of the matrix. For each pixel, in an individual electronic circuit associated with the pixel, a recursively digital method is used to determine an approximate value (M) of an average of the signal Sobtained from the pixel during this large number of images; the signal obtained from each pixel is corrected according to the determined approximate average value and according to a reference average value (M0), and a corrected signal S*is transmitted from the circuit associated with the pixel.