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Definitions (49)
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auto balance
A system for detecting errors in color balance in white and black areas of the picture and automatically adjusting the white and black levels of both the red and blue signals as needed for correction.
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Sales@Spyville.com Call 866-779-8455Home| Private Investigators| Mail-In Orders| About Us| Customer Service| Help| Contact Us Spy CamerasPhone RecorderBug DetectorsNew! Home - Glossary Of Spy ,Security and CCTV Cameras Terms and DefinitionsGlossary Of Spy ,Security and CCTV Cameras Terms and Definitions
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aperture
The aperture of a lens controls the amount of light which can reach the pickup device (image sensor when relating to video). The size is controlled by the iris adjustment. By increasing the F-number (F1.2, F1.8, etc), less light will be permitted into the sensor.
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auto iris
Automatic method of varying the size of the lens aperture in response to changes in light. This is a function of the lens or the camera
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automatic gain control
A process by which gain is automatically adjusted as a function of input or other specified parameter.
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bnc
Bayonet Nut Connection. Also known as several other names. A connector for coaxial cable that is used in video connections and RG58 connections. The connector has a bayonet-type shell with two small knobs on the female connector which lock into spiral slots in the male connector when twisted on. BNC connections are easily adapted to [..]
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bandwidth
The number of cycles per second (Hertz) expressing the difference between the lower and upper limiting frequencies of a frequency band; also, the width of a band of frequencies.
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blooming
The defocusing of regions of the picture where the brightness is at an excessive level, due to enlargement of spot size and halation of the fluorescent screen of the cathode-ray picture tube. In a camera, sensor element saturation and excess which causes widening of the spatial representation of a spot light source.
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burned-in-image
Also called burn. An image which persists in a fixed position in the output signal of a camera tube after the camera has been turned to a different scene or, on a monitor screen.
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ccd format
The active imaging area of a CCD sensor, measured corner to corner.
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