User Guide

427-0075-01-12 Revision 140 October 2019 32
This document does not contain any export-controlled information.
Basic Operation and Configuration
For enhanced security, RTSP authentication can be
enabled.
There are some challenges with streaming video over an
IP network, when compared to applications which are less
time-critical, such as email and web browsing. There are
requirements which must be fulfilled to ensure satisfactory
video quality in professional security environments. There are many parameters and factors related
to network infrastructure, protocols, codecs, and so on that can affect the quality and bit rate of a
video stream when it is established between the camera and a client.
RTSP is originated and received on even port numbers and the associated RTCP communication
uses the next higher odd port number; the default RTSP Port is 554.
IR > AGC ROI
The IR camera adjustments to the region of interest (ROI) determine what portion of the image is
used by the Automatic Gain Control (AGC) algorithm. By default all of the pixels in the image are
considered; in some cases it may provide an improved image if a portion of the image is excluded.
For example, the sky is generally very cold, so if the ROI excludes the sky it may add more contrast
to the rest of the image. A pull-down list offers some convenient options.
When Custom is selected, a handle is
shown in the center of the screen.
Drag the handle to set
the size of the ROI box.
Drag the ROI box over
the portion of the scene
that will control the AGC.