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VG4 Modular Camera System Configuring the IP AutoDome | en 79
Bosch Security Systems, Inc. User’s Manual F.01U.133.268 | 6.0 | 2010.03
Profile name
You can enter a new name for the profile. The name is then displayed in the Default profile
list field on the Encoder Streams page in the lists of selectable profiles.
Target data rate
You can limit the data rate for the IP AutoDome to optimize utilization of the bandwidth in
your network. The target data rate should be set according to the desired picture quality for
typical scenes with no excessive motion.
For complex images or frequent changes of image content due to frequent movements, this
limit can be temporarily exceeded up to the value you enter in the Maximum data rate field.
Maximum data rate
This maximum data rate is not exceeded under any circumstances. Depending on the video
quality settings for the I and P-frames, this fact can result in individual images being skipped.
The value entered here must be at least 10% higher than the value entered in the Target data
rate field. If the value entered here is too low, it will automatically be adjusted.
Encoding interval
The setting selected here determines the interval at which images are encoded and
transmitted. The image rate in ips (images per second) is displayed next to the text field.
Video resolution
Here you can select the desired resolution for the video image. The following resolutions are
available:
– CIF
352 × 288/240 pixels
– 4CIF/D1
704 × 576/480 pixels
Expert Settings
You can use the expert settings to adapt the I-frame quality and the P-frame quality to specific
requirements, if necessary. The setting is based on the H.264 quantization parameter (QP).
I-frame quality
This setting allows you to adjust the image quality of the I-frames. The basic setting Auto
automatically adjusts the quality to the settings for the P-frame video quality. Alternatively,
you can use the slide control to set a value between 9 and 51. The value 9 represents the best
image quality with, if necessary, a lower frame refresh rate depending on the settings for the
maximum data rate. A value of 51 results in a very high refresh rate and lower image quality.
CAUTION!
Change the profiles only once you are fully familiar with all the configuration options.
In the default setting, Stream 1 is transmitted for alarm connections and automatic
connections. Bear this fact in mind when assigning the profile.
NOTICE!
All parameters combine to make up a profile and are dependent on one another. If you enter a
setting that is outside the permitted range for a particular parameter, the nearest permitted
value will be substituted when the settings are saved.