FIELD: surveillance.
SUBSTANCE: invention relates to panoramic television surveillance executed by a computer system using an all-round television camera in a near-hemispheric area, i.e., in a spatial angle of 360 degrees by azimuth and tens of degrees by the angle of elevation The result is achieved by the television camera including a panoramic objective, a beam splitter, an "annular" photodetector made in the form of a circular ring, a "rectangular" (matrix) photodetector installed on the guidance unit of the television camera and providing smooth spatial movement thereof within a circle. If the value of the photosensitive area of the active pixel (Δ1) of the first row of the "annular" photodetector herein is less than the characteristic of area (Δ) in the matrix photodetector, in order to align the sensitivities of the "annular" and matrix channels in the television camera, the gain coefficient Km of the active pixel for each current "annular" row of the "annular" photodetector should be multiplied by Δ/Δ1, and amounts to:
and if the value of the characteristic Δ1 in the "annular" photodetector is greater than the characteristic Δ in the matrix photodetector, in order to align the sensitivities of the "annular" and matrix channels, the value gain Km of the active pixel of the matrix photodetector should be multiplied by Δ1/Δ times, on the conditions that the value of the coefficient Km for the "annular" photodetector is maintained.
EFFECT: expanded nomenclature of the applied components of the television camera of the system due to the use of "annular" and matrix photodetectors differing in the area of photosensitive pixels (Δ1) and (Δ) as sensors.
4 cl, 9 dwg, 2 tbl
