METHOD OF FORMING A VIDEO SIGNAL IN A “RING”; PHOTOSENSOR FOR COMPUTER SYSTEM OF PANORAMIC TELEVISION OBSERVATION UNDER CONDITIONS OF COMPLEX LIGHTING AND / OR COMPLEX BRIGHTNESS OF OBJECTS

摘要

FIELD: video surveillance.;SUBSTANCE: invention relates to television and computer technology and is oriented to the use in television camera of panoramic observation, which are made on the basis of "ring" television sensors based on technology of charge coupled devices (CCD) and are intended to work in conditions when control objects differ significantly from each other in terms of illumination and / or brightness. Cameras carry out simultaneously all-round view of situation in region close to hemisphere, i.e. in a space angle of 360 degrees in azimuth and tens of degrees in elevation angle, while computer (server) operator evaluates the "sensitivity" of image of received k "rectangular" frames, and, according to this evaluation, sends a command to the television camera to form a new reference value of control voltage for ARVN and AGC in relation to selected corresponding section of "ring" target with low illumination (brightness), providing increased accumulation time of photodetector and an increased gain constant of video path of television camera for a new "ring" image frame.;EFFECT: increase in sensitivity of these separate "rectangular" frames recorded with low illumination (brightness) of the corresponding fragments of the panoramic image, by increasing the accumulation time of the photodetector and television camera video path gain factor for them.;1 cl, 8 dwg, 1 tbl