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en | Configuration
FLEXIDOME indoor 5100i (IR) | FLEXIDOME
outdoor 5100i (IR)
11-2022 | V02 | F.01U.394.427
User manual
Bosch Security Systems B.V.
Target bit rate
To optimize use of the bandwidth in the network, limit the data rate for the device. 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 temporarily be exceeded up to the value entered in the
Maximum bit rate
field.
The target bitrate will be the average bitrate over the averaging period.
Advanced settings
If necessary, use the advanced settings to adapt the I-frame quality and the P-frame quality to
specific requirements. The setting is based on the H.264 quantization parameter (QP).
GOP structure
Select the required structure for the group of pictures, depending on whether you place
greater priority on having the lowest possible delay or using as little bandwidth as possible.
I-frame distance
Use the slider to set the distance between I-frames to
Auto
or to between
3
and
255
. An entry
of 3 means that every third image is an I-frame. The lower the number, the more I-frames are
generated.
Min. P-frame QP
The Quantization Parameter (QP) specifies the degree of compression and thus the image
quality for every frame. The lower the QP value, the higher the encoding quality. A higher
quality produces a higher data load. Typical QP values are between 18 and 30. Define the
lower limit for the quantization of the P-frames here, and thus the maximum achievable quality
of the P-frames.
I/P-frame delta QP
This parameter sets the ratio of the I-frame QP to the P-frame QP. For example, you can set a
lower value for I-frames by moving the slide control to a negative value. Thus, the quality of the
I-frames relative to the P-frames is improved. The total data load will increase, but only by the
portion of I-frames.
To obtain the highest quality at the lowest bandwidth, even in the case of increased
movement in the picture, configure the quality settings as follows:
1.
Observe the coverage area during normal movement in the preview images.
2.
Set the value for
Min. P-frame QP
to the highest value at which the image quality still
meets your needs.
3.
Set the value for
I/P-frame delta QP
to the lowest possible value. This is how to save
bandwidth and memory in normal scenes. The image quality is retained even in the case
of increased movement since the bandwidth is then filled up to the value that is entered
under
Maximum bit rate
.
Click
Default
to return the profile to the factory default values.
Click
Set
to apply the changes.
4.4.11
Encoder Statistics
This section gives the user information about the bit rate of the device. For each scene, it is
possible to determine the best target/max bit rate through the graphic shown.
Stream
Identifies the current stream.
Zoom
Identifies the current zoom factor of the camera (1x, 2x, 4x, or 8x).
