D-Link DCS-6220, Руководство пользователя

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DCS-660 User’s Manual
D-Link Systems, Inc.
Using the DCS-660 with an Internet Browser
Configuration > Advanced > Video
(continued)
Key frame interval:
Video quality control:
Vertically rotate the video.
A large “ Key frame interval ” value can reduce the bit rate, but if there
is a packet loss during transmission, it will cause image corruption. “ Fix
bit rate ” and “ Key frame interval ” are only available in “ MPEG4 ” mode.
The video quality may be poor due to the sending of maximal frame rate
within the limited bandwidth, which is when images are moving rapidly.
Consequently, to ensure detailed video quality (quantization rate) regardless
of the network, it will utilize more bandwidth to send the maximal frames
when images change drastically.
To fix the bandwidth utilization regardless of the video quality, choose
Fix bit rate and select the desired bandwidth. The video quality may
be reduced in order to send maximum frames with limited bandwidth,
especially when images change drastically. For higher video detail
regardless of the bandwidth selection, select Fix quality and select a
video quality level. This setting will utilize more bandwidth to send the
maximum frames when images change drastically.
Horizontally rotate the video. Check options both if the Network Camera
is installed upside down.
Click Apply to make
changes effective
Flip:
Mirror:
Improve efficiancy
in the multi-user
environment :
Check this option to improve efficiency in the multi-user environment
when running in the low bandwidth environment.