FIELD: television technology.
SUBSTANCE: invention relates to television technology and can mainly be used in systems for analyzing interferograms, in which digital matrix photodetectors made using the technology of complementary metal-oxide-semiconductor (CMOS) structures are used as video signal sensors. The result is achieved by forcibly implementing in the photodetector the accumulation of information charges and the formation in adjacent frames of image signals of different levels with the magnitude of the video signal span, respectively, "maximum" and "reduced", weighted summation of direct and delayed video signals is performed using the method for recursive filtering of the video signal, and the quality adjustable parameter of the degree of recursive filtering in the television camera use the gain of the CMOS photodetector video signal, the value of which varies from zero to Km, where Km is a typical maximum allowable value.
EFFECT: improving the accuracy of recursive filtering.
1 cl, 4 dwg, 1 tbl
