Bosch AUTODOME IP starlight 5100i, Руководство пользователя

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38 en | Camera AUTODOME IP starlight 5100i
2020-11 | draft 0.9 |
User Manual
Bosch Security Systems
frame (QP value), the higher the encoding quality (and thus the best image quality) and the
lower the frame refresh rate depending on the settings for the maximum data rate under
network settings. A higher quantization value results in low image quality and lower network
load. Typical QP values are between 18 and 30.
The basic setting Auto automatically adjusts the quality to the settings for the P-frame video
quality.
I/P-frame delta QP
This parameter sets the ratio of the I-frame quantization (QP) to the P-frame quantization
(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. The basic setting Auto
automatically adjusts to the optimum combination of movement and image definition (focus).
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 .
Background delta QP
Select the appropriate encoding quality level for a background region defined in Encoder
Regions. The lower the QP value, the higher the encoding quality.
Object delta QP
Select the appropriate encoding quality level for an object region defined in Encoder Regions.
The lower the QP value, the higher the encoding quality.
Default
Click Default to return the profile to the factory default values.
7.4 Encoder Streams
Note: If you access this menu while the camera is recording, the following message appears at
the top of the page:
Recording is currently active. Therefore, for ‘Current profile’ the respective stream profile
selected for recording is displayed for information.
For each stream, select the appropriate options in the fields that follow.
Property
Select one of the resolutions from the drop-down menu for each stream.
For
Stream 1 , the options are 2560x1440 (3.7 MP) and 1536x864 (1.3 MP) .
If you selected 2560x1440 (3.7 MP) , the options for Stream 2 are:
– Copy Stream 1
– 1080p (2 MP)
– 1536x864 (1.3 MP)
– 720p (1 MP)
– SD
– D1 4:3 (cropped)
– 640x480
If you selected 1536x864 (1.3 MP) , the option for Stream 2 is 1536x864 (1.3 MP) .