49
Using the DCS-5300G with an Internet
browser (continued)
Recording settings for clear identification for each image
To have the best video quality, you should set
Fix quality
to
detailed
or
excellent
and tune the
Maximum frame rate
to suit
your network bandwidth. If you get
some broken pictures in a slow network, you can set
TCP protocol
in
Connection type
for a more accurate transmission but the received images
may have a lag. Note that any slow connection with multiple users will impair
performance.
Recommendations for setting video for the best
performance:
“Best performance” means the image refresh rate should be the fastest possible
and the video quality should be the best possible at the lowest network bandwidth
possible. Three factors,
Maximum frame rate
,
Fix bit rate
, and
Fix quality
in
the
Video Configuration
page, are related to performance.
Recording settings for real-time motion images
To achieve a real-time visual effect, the network bandwidth should be large
enough to transmit 20 image frames per second (fps) or more. If you are on a
broadband network over 1Mbps, you can set
Fix bit Rate
to 1000Kbps or
1200Kbps, or set
Fix quality
to achieve the maximum frames. The maximum
frame rate is 25 in 50Hz system and 30 in 60Hz system. If your network
bandwidth is more than 384Kbps, you can adjust
Fix bit rate
according to
your bandwidth and set the maximum frame rate of 25 to 30.
If the images vary dramatically in your environment, you may slow down the
maximum frame rate to 20 to decrease the transmitted data for better video
quality. Since the human eye could not easily differentiate between 20 and 25
or 30 frames per second, the slower frame rate will not be noticed. If your
network bandwidth is below 384 Kbps, you should adjust the bit rate according
to your bandwidth and experiment to allow for the best frame rate that can be
achieved. The faster frame rate in a slow network will blur the images. You
may also try to choose
352x240
in size option for better images or
704x480
for
larger image size. Because the network has burst constraints and everyone’s
environment is not the same, any poor connection will impair normal
performance.
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