Bosch AutoDome Junior HD VJR Series, Руководство по эксплуатации

Страница: 72 / 114

– CIF 352 × 288/240 pixels
– 4CIF/D1 704 × 576/480 pixels
– QVGA 320×240 pixels
– VGA 640 x 480 pixels
– 720p 1280×720 pixels
– 1080p 1920×1080 pixels
Encoding Interval
The figure 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.
Use the slide bar to select a frame rate from 30.00 ips to 1 ips.
Expert Settings
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).
GOP Structure
Select the structure you require for the Group of Pictures here. Depending on whether you
place greater priority on having the lowest possible delay (IP frames only) or using as little
bandwidth possible, you can choose between IP, IBP, and IBBP.
I-frame Distance
This parameter allows you to set the intervals in which the I-frames will be coded. 0 means
auto mode, whereby the video server inserts I-frames as necessary. An entry of 1 indicates
that I-frames are continuously generated. An entry of 2 indicates that only every second image
is an I-frame, and 3 only every third image etc.; the frames in between are coded as P-frames.
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 9and51. 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.
P-frame Quality
This setting allows you to adjust the maximum image quality of the P-frames. The basic setting
Auto automatically adjusts to the optimum combination of movement and image definition
(focus). Alternatively, you can use the slide control to set a value between 9and51. 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.
Default
Click Default to return the profile to the factory default values.
Encoder Streams
Select the property and default profile for each H.264 stream and set the parameters for the
M-JPEG stream.
The choices for Stream 1 depend on the resolution setting in the Installer Menu page (Installer
Menu, page 70).
For the first H.264 stream you can select from these options:
HD stream options:
–
H.264 MP 720p25/30 Fixed
– H.264 MP 720p30/60 Fixed
– H.264 MP 1080p Fixed
SD stream options (use these options if a second H.264 stream is allowed):
12.20
72 en | Configuring the AutoDome Junior HD AutoDome Junior HD Series
2014.11 | 6.1 | F.01U.275.803 Operation Manual Bosch Security Systems, Inc.