40
Installation
Appendix
Introduction
How to Use
Defi
nitions in
Confi
guration
Video Settings
Video title
The text string can be displayed on video.
Color
Selects either color or monochrome video display.
Power line frequency
Fluorescent lights flash according to the power line
frequency. Change the frequency setting to eliminate uncomfortable fl ash images
when the light source is only fl uorescent lighting.
Video orientation
・ Flip:
Vertically rotate the video.
・ Mirror:
Horizontally rotate the video.
Note:
Check both options if the Network Camera is installed upside down.
Maximum Exposure Time
Adjust the maximum exposure time in different
environment.
・ Overlay title and time stamp on video and snapshot:
Check if the title is to
be shown on video.
There are diff erent video quality settings for stream1 and stream2.
・ Mode:
If MPEG-4 is selected, streaming is in RTSP protocol. If JPEG is
selected, streaming is in server push mode.
・ Frame size:
In either the MPEG-4 mode or the JPEG mode, the three options
are
"176x144"
,
"320x240"
and
"640x480"
.
MPEG-4 mode has three dependent parameters for video performance adjustment.
Maximum frame rate
Limits the maximum refresh frame rate which can be
combined with the
Video quality
to optimize bandwidth utilization and video
quality.
Intra frame period
The interval of intra frame.
Video quality
settings are:
Constant bit rate
Fixes the bandwidth utilization regardless of the video quality.
Fixed quality
Select the desired video quality.
Note:
The video quality may be poor due to the sending of the maximum frame
rate within the limited bandwidth 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 maximum frames when images change
drastically.
JPEG mode is limited to two parameters
Maximum frame rate
and
Video
quality
to adjust the video performance.
Audio and Video (Cont.)
