Friday, November 8, 2013

Breakdown of Common Abbreviations in CCTV Security Digital slr cameras With OSD (on Liquid crystal display Displays)


NIGHT EFFORT FEATURES

AGC: Automatic Gain Control

This provides CCTV camera to enhance the video image quality in shady conditions. This provides the effect and brighter image quality in poor light or nighttime conditions.

DSS: Digital Slow Shutter

This perform the CCTV camera shows the shutter speed to be slowed up. This slows down the frame interest rates the camera, giving it more time to locate the light from objects. This gives much better lighting images throughout the night even for conditions inside low illumination to 0. 003 lux!

TDN: True Day/Night

An Infra Inexperienced Filter is applied automatically to generate the best images in daytime and night and provides the cameras to see Home light.

IR: Infrared night vision

These are usually LED bulbs fitted among the camera, and switch on automatically in badly lit conditions and allow the camera to see during the nighttime in black and pink images. There are now 2 distinct kinds of IR LEDS, the older style lights (many little bulbs) are cheap and provide good images however, the IR light are frequently too focused in the centre of the screen. The best IR LEDs called WIDE, (the single large LED bulbs) produce more rounder night vision view linked with an IR rays dispersed over a better range. Often the images in array LED degree of complexity better and focused precisely.

DAY LIGHT FEATURES

DNR: Digital Noise Reduction

Reduces the digital pixel noise in low-level light viewing, giving an sharper image, and reducing as large as the video for your special dvr as wasted pixels may be eliminated. Hence saving environment.

WDR: Wide Dynamic Range

Compensates included in pictures or video which has been multiple sources of gorgeous spots or different a higher standard bright sports or badly lit spots. Provides a more balanced picture and better clarity.

EE: Edge Enhancement

Sharpens the edges of objects or people around the cameras view giving an extra sharper image and descriptive video.

AWB: Auto White balance

Allows for adjustments in a colour or temperature stretch of lighting, such as white light or dim white lights. The camera compensates to target different mixes of colour in the event light providing a more even and natural image as opposed to harsh lighting and very unnatural images expressing, as the camera sensor is unable to distinguish different levels of light compared to human attention.

AI: Auto Iris

Allows the camera to control the lens iris to modify for varying light difficulty. Can be DC meaning that the camera controls the iris. Or Video which means the camera only supplies incredible the lens and the lens itself via a sensor controls unique iris.

BLC: Backlight compensation

Simplifies and brightens the actual so dark objects are visible in strong lighting conditions. Used when the device is facing door when the outside bright light will allow it to become dim, and indoor lighting objects is actually dark blobs.

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