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The Three Primary Technologies for Night-time Video Surveillance
- Master these and you'll never be in the dark
There are lots of challenges in performing video
surveillance at night. The optimal solution for a particular
application will depend on the requirements for the specific
application. For example, is daytime operation required? Does
the system need to be covert (so that no visible illumination
is used so that it is either undetectable or limits light pollution)?
What is the size and shape of the area to be monitored? Is
the goal of the surveillance to detect, recognize or identify
subjects in the field of view?
The "best" system design for a specific
video surveillance system that includes imaging at night will
utilize one of the three primary night vision technologies:
low-light imaging, thermal imaging and near-infrared illumination.
In this article, these three technologies are explained and
the advantages of each reviewed.
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Guidelines for Evaluating Digital Camcorders
for Surveillance
This paper’s objective is to help you
simplify your understanding of how image quality is determined.
Covered are three topics that directly influence thermal image
quality: pixel resolution, thermal sensitivity, and non-uniformity
correction. A number of related topics are discussed as well.
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Tips on Creating Awesome Night Vision Digital
SLR Photos
Even the best digital SLR cameras simply do
not have sufficient sensitivity to capture adequate, low-light,
usable images. Night vision modules are the ideal accessory.
This article provides important guidelines for producing awesome
night-time photos when using a night vision module-enabled
digital SLR camera. Follow these guidelines to assure the best
possible image quality.
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Understanding Infrared Camera Thermal Image
Quality
This paper’s objective is to help you
simplify your understanding of how image quality is determined.
Covered are three topics that directly influence thermal image
quality: pixel resolution, thermal sensitivity, and non-uniformity
correction. A number of related topics are discussed as well.
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Application Analysis of Near-Infrared Illuminators
Using Diode Laser Light Sources
Many applications require the collection of radiometric
data of targets with large temperature differences within the
scene or of experiments during which dynamic temperature changes
occur over a short period of time. This paper introduces new
proprietary techniques that enable the collection of radiometric
data under dynamic conditions.
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