So would you like to play "Spot the CCTV Camera?". Eagle eyed visitors may recognise the profusion of street furniture, surrounding a single heritage dome camera keeping watch over part  of Londons' prestigious Oxford Street shopping area.

Welcome to the
"Glossary"
section of
Doktor Jons

Guide to Closed Circuit TV (CCTV)

A detailed explanation
of common Technical Terms


A brief Index of Technical Terms and Concepts
( Under Development )

CAMERA

Auto Gain Control
Auto White Balance
Backlight Compensation
Black Level
Blooming
CCD
CCIR
Chrominance
CID
CMOS
Colour Temperature
Comet Trailing
Composite Video
Day / Night
Dome Cameras
Dynamic Range
EIAJ
Electronic Iris
Exposure Control
External Sync.
Exwave (Exview)
Fields
Frames
Frame Integration
Gamma
Genlock
HAD
Imager
Interlaced
Internal Sync.
IP Camera
IR Filter
IR Sensitivity
IRE
Lag
Line Powered
Line Lock
Luminance
Lux
Mirror Function
MOS
Noise
NTSC
PAL
PCB Cameras
Power Supply
Pixels
Resolution
Reverse function
Scanning System
SECAM
Sensitivity
Shutter Speed
Signal Output
Smearing
S/N Signal to Noise
Spectral Response
Test Chart
Thermionic Valve
Vidicon
Wide Dynamic

LENSES

Aperture
Aspherical Lens
Auto Iris
Back Focus
Barrel Distortion
Barrel lens
Catadioptric lens
C or CS mount
C Mount Adaptor
Circles of Confusion
Depth of Field
Direct Drive
Definition
Distortions
Dummy Lens
ED glass
Elements
Exposure Control
Extension Tube
Field of View
Filters
Focal Length
Focus
Groups
IR Corrected
Iris control
Lens Format
Lens Mount
Lens Selection
Low Dispersion
Magnification
Manual Iris
Maximum Aperture
ND Spot Filter
Perspective
Pincushion Distortion
Pinhole Lens
Presets
Principle Plane
Range Extender
Resolution
Standard Lens
Telephoto
Varifocal
Video Amplifier
Wide Angle
Zoom Lens
Zoom Ratio

MONITORS

Brightness
'Burn in'
Contrast
CRT
Flatscreen
LCD
LCoS
Linearity
Looping Inputs
Mirror
Multi Standard
Plasma screen
Termination
TFT
Underscan

 

SWITCHERS

Alarm Input
Auto
Dwell Time
Looping Inputs
Manual
Matrix
Programmable
Sequential

PAN & TILT

Autopan
IP Rating
Over the Top (OTT)
Pan
Platform
Preset Positioning
Side mount (SM)
Syncronous Motors
Tilt
Variable Speed

HOUSINGS

Circulating Fan
Corner Mount
Deep Base
Dustproof
Heater
IP Rating
Vandal Resistant
Wash Bottle
Weatherproof
Wiper Unit

SIGNALS

Attenuation
Balanced TX
Baluns
Cat 5
CCIR
Co-Axial Cable
Composite
Earth loop hum
EIAJ
External sync.
Fields
Frames
Genlock
Hum
Laser TX
Licence exempt
Microwave
Multimode
Network TX
NTSC
Optical Fibre
PAL
Radio TX
RF output
RS 232 / 485
SECAM
Single Mode
Syncronisation
Telemetry
Twisted Pair
Unbalanced TX
Vertical Interval
Y/C

 

INFRA RED

Bulb
Dichroic
Dyed in the Mass

Filter
Frequency
IR Diodes
Light Sensor
Nanometres (nM)
PSU
Tungsten Halogen
Soft Start
W/A Adaptor

RECORDING

Cassette
Compression
CD / DVD
Dew Warning
Disc Capacity
Duplex
DVR
Flash Card (Compact)
HDD
H-264
Jog / Shuttle
Mobile
M-JPEG
MPEG-2
MPEG-4

Multiplexer
Network
RAID
Real Time
Repeat Record
Simplex
Time Lapse
Triplex
VCR
VHS - S/VHS
Video Printer
Wavelet
 

GENERAL

Analogue
CCTV
Codec
Control Room
Co-veillance
Crime Audit
Digital
Displacement
DSP
Ethernet
Fast Scan
Fibre Optic
Mobile CCTV
Motion Detection
Network CCTV
Network Switch
OCTV
OCRA
Risk Assessment
Router
Slow Scan
Specification
System Design
System Profile
Telemetry
Town Centre CCTV
Video Loss Alarm
Video Server

The unique "TRUSTED" National CCTV Improvement Campaign

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without the express written consent of doktorjon.co.uk

All the detailed information on this site is provided in good faith; and as such, Doktor Jon
does not accept responsibility for any consequential loss, injury or disadvantage
resulting from any individual or organisation acting on the details contained herein.

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