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The bit rate can be set as Variable Bit Rate (VBR) or Constant Bit Rate (CBR). VBR
adjusts the bit rate according to the image complexity, using up bandwidth for increased
activity in the image, and less for lower activity in the monitored area.
CBR allows you to set a fixed target bitrate that consumes a predictable amount of
bandwidth. As the bit rate would usually need to increase for increased image activity,
but in this case cannot, the frame rate and image quality are affected negatively. To
partly compensate for this, it is possible to prioritize either the frame rate or the image
quality whenever the bit rate needs to be increased. Not setting a priority means the
frame rate and image quality are equally affected.
-. Compression
When it is necessary to adjust a smooth transmission status according to network
situations, users can increase the compressibility to carry out the network transmission
stably. On the other hand, when it is necessary to maintain a detailed monitoring screen
by enhancing the image quality, users can do so by decreasing the compressibility. In
ease case, please adjust this function according to the network status and monitoring
purposes. The default is 2000(Kbps).
-. Frame rate
Upon the real-time play, users should select a frame refresh rate per second. If the rate is
high, the image will become smooth. On the other hand, if the rate is low, the image will
not be natural but it can reduce a network load.
-. GOP size
Select the GOP(Group of Picture) size. If users want to have a high quality of fast image
one by one, please decrease the value. For the purpose of general monitoring, please do
not change a basic value. Such act may cause a problem to the system performance. For
the details of GOP setting, please contact the service center.
• Image Setting
Sometimes the image size is large due to low light or complex scenery. Adjusting the
frame rate and quality helps to control the bandwidth and storage used by the Motion
JPEG video stream in these situations. Limiting the frame rate and quality optimizes
bandwidth and storage usage, but may give poor image quality. To prevent increased
bandwidth and storage usage, the Resolution, Frame rate, and Frame Quality should be
set to an optimal value.
-. JPEG resolution
Same as the video settings.
-. JPEG frame rate
Same as the video settings.