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HDTV and megapixel network cameras
HDTV and megapixel network cameras have an important role to play in video surveillance
applications. They can provide images that are more useful, with more image detail and with
wider scene coverage than standard resolution cameras. Depending on your requirements,
Axis network cameras can bring the advantages of HDTV, megapixel and network technology
to your surveillance application.
What do you need to see?
General overview
In a shopping mall, for instance, the primary goal of a
camera installation may be to watch for the presence
of people and view their movements — not the identi-
cation of individuals. For this kind of overview appli-
cation, sucient resolution and coverage of a scene
may be achieved with either a number of non-mega-
pixel network cameras or a single HDTV or megapixel
network camera.
High detail
These are the really demanding situations where you
need to be able to identify persons or objects in a
scene. This could be point-of-sales monitoring where it
is necessary to clearly see every item a customer is
purchasing. Using an HDTV or a megapixel network
camera will provide higher resolution images with
more details than a non-megapixel network camera.
This higher resolution enables the operator to choose
either to zoom in or to maintain a wider eld of view
without compromising the ability to see and discover
ne details in the image. Furthermore, the full frame
rate provided by an HDTV network camera creates a
rich viewing experience also when following moving
objects or capturing activity in a scene.
The variation of requirements within video surveillance is enormous. The most fundamental question, however, is
generally a choice between two dierent priorities:
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