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en | Glossary of CCTV Terms
AutoDome Modular Camera System
F01U073308 | 3.0 | 2007.09
VG4-200, VG4-300, VG4-500i Series User’s Manual
Bosch Security Systems, Inc.
NEMA Rating
Specification standards in reference to the operating environment for a variety of electrical
devices.
NightSense
A method of boosting the sensitivity of high-resolution Bosch color cameras by 9db (a factor
of 3) by combining the signal of the color image in a single monochrome picture.
NPT
See National Pipe Thread.
O
On-screen Display
Menus are shown on the display monitor.
OSD
See On-screen Display.
P
Pan
Camera movement in the horizontal direction.
Pixel
The smallest addressable unit on a display screen or bitmapped image.
Pre-Position
A pre-selected and stored combination of pan, tilt and zoom positions that allow a set view to
be recalled. Also known as Preset Shot.
Preset Tour
A sequence of preset shots combined to provide a pre-programmed tour of the area covered
by an AutoDome camera.
Pressurized Dry Nitrogen Housing
A housing for outdoor applications that protects against smog, humidity, dirt and dust.
Privacy Masking
The ability to mask out a specific area to prevent it being viewed.
R
Region of Interest
The defining of a specific area within a field of view to be used by the motion detection
algorithm to only look for motion within this region.
Resolution
The measure of the fine detail that can be seen in an image. For analog systems this is
typically measured in Television Lines or TVL. The higher the TVL rating, the higher the
resolution.
RS232/485
A communication interface for third party control and firmware upgrades to the AutoDome
products.
Rule
AutoDome’s alarm management subsystem that uses “if this, do that” rules to perform
specific actions when an event occurs.
S
Sector Blanking
The ability to blank out video in any of the 16 pan sectors.
Sensitivity
A measure of the amount of light required to provide a standard video signal. Sensitivity
values are stated in lux or foot-candles.
SensUp
Increases camera sensitivity by increasing the integration time on the CCD. This is
accomplished by integrating the signal from a number of consecutive video frames to reduce
signal noise.
