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Glossary of common
Digital Video Surveillance Terms.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
H
Halogen lamp:
is a type of incandescent lamp with a good spectral response. It is used in flood lighting of sport stadias.

Hertz:
is a unit of measuring frequency. 1 Hertz = 1 cycle per second.

Homing sequential switcher:
is a type of switcher used for small systems. It has only one output.

Horizontal resolution:
is the number of vertical lines which can be resolved in a picture. It depends upon the number of pixels in a chip.

Horizontal shift register:
is a part of the CCD chip to which the charge from the pixels is transferred line by line. This charge is then converted into an analogue video signal.

 

  

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