FIELD: surveillance systems.
SUBSTANCE: invention relates to panoramic television surveillance, which is performed by a computer system using a television camera that provides a circular view in a spherical region of space occupying two oppositely located spherical layers. At the same time, for each of these spherical layers, real-time television monitoring of the situation is carried out in a spatial angle of 360 degrees in azimuth and tens of degrees in the elevation angle. The expected result is achieved by the fact that the television camera has two sensor blocks: “annular” and “rectangular” (matrix), each of which contains two photodetectors made using the technology of complementary structures “metal-oxide-semiconductor” (CMOS), and a combined image is reproduced on the computer monitor screen, which, in relation to the initially presented image, consists of an a priori selected area with the necessary magnification (scaling) and the rest of it with an unchanged scale. If the size of the photosensitive area of active pixel (Δ1) of the first row for the first and second “annular” photodetector less than area (Δ) in the first and second matrix photodetector, the alignment sensitivity of the “annular” and matrix channels in the TV camera gain Km of the active pixel for each of the current “annular” lines of each “annular” photodetector needs to be increased Δ/Δ1 times, if the value of the index Δ1 in the “annular” photodetectors more than Δ in the matrix photodetectors, then, in order to align the sensitivities of the “annular” and matrix channels, the value of the gain coefficient Km of the active pixel of each of the matrix photodetectors should be increased Δ1/Δ times, provided that the value of the Km coefficient for each of the “annular” photodetectors is preserved.
EFFECT: expansion of the nomenclature of the equipment used as part of the television camera system by using “annular” and matrix photodetectors that differ in the area of photosensitive pixels as sensors.
1 cl, 9 dwg, 2 tbl
