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Aberration aberration. The term of the fiber, refers to all effects that influence the fidelity images on the original scene.
AC Alternating current.
Activity detection is active. Available in some videomultipleksorah function of detecting motion in a field of view cameras connected to increase the speed of updating records.
AC / DC AC / DC.
A / D A / D - Usually refers to the analog-digital conversion.
AES Automatic electronic shutter. Automatically adjusts exposure, with a bright flash or rapid motion, thus ensuring high-quality image.
AGC - Automatic gain control Automatic gain control
Alarm Login to connect to the TV equipment elements Signaling
ALC - Automatic light control Automatic illumination
Aliasing Overlay spectra
Amplitude Amplitude - The maximum value of the signal.
Anti-aliasing smoothing - the protection of an overlay of spectra.
Aperture Aperture - aperture lens controlling the amount of light reaching the surface of a photodetector.
Artifacts Artifacts - Undesirable elements or defects in the video.
ASCII American standard code-sharing information
Aspect ratio Ratio - The ratio of the width of the TV and kinoizobrazheniya to its heights.
Aspherical lens Aspherical lens - lens with an aspherical surface.
Astigmatism Astigmatism - Blur the image on the front and rear.
Asynchronous asynchrony - The lack of synchronization. Video nesinhronizirovan if its duration is different from the length of the reference alarm system, external video nesinhronizirovan until it does not undergo processing of video frame synchronizers.
ATM. Asynchronous transfer mode Asynchronous Transfer Mode. The method of transmission and switching signal, in which information is nontorsion with respect to certain reference signal.
Attenuator Attenuator - The scheme, which provides a decrease of amplitude of electric signal without significant phase or frequency distortion.
Attenuation Attenuation - The decrease of amplitude signal as it is passing in the environment or electrical system. Measured in decibels (dB).
Auto Iris automatic method of changing the aperture diaphragm in response to changes in scene illumination.
AVI. Audio Video Interleaved file format for storing multimedia audio and video data in a format RIFF, developed by Microsoft.
