METHOD OF COMPENSATING FOR SIGNAL IRREGULARITY OF PHOTOSENSITIVE ELEMENTS OF MULTIELEMENT PHOTODETECTOR Russian patent published in 2012 - IPC H04N5/33 G02B23/12 

FIELD: information technology.

SUBSTANCE: method includes receive of radiation flux and processing the signal from photodetector by formula where S_i,j is aligned image array; T_iny - output array of image incoming from multielement photodetector and formed as result of recorded radiation effect; Tfon_i,j - array of compensated constant components of signals from photosensitive elements, resulting from defocusing; k_i,j - array of correction factors of multielement photodetector elements sensitivity; i - number of pixel in image array row; j - number of image array row. Tfon_i,j is obtained due to insertion of defocusing element in optical path of optical system which element shifts image plane to cold diaphragm plane or to intermediate plane between cold diaphragm plane and photosensitive elements plane. To obtain Tin _i,j the defocusing element is drawn from optical path.

EFFECT: lower hardware costs, higher processability, flexibility and reliability of compensation of elements signal constant component irregularity, achieving its quality independence from range of changing of external background radiation and incoming flux dynamics, higher image quality.

3 cl, 3 dwg