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the bit rate to a defined value prevents excessive bandwidth usage, but images are lost when the
limit is exceeded.
Note that the maximum bit rate can be used for both variable and constant bit rates.
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.
- JPEG quality: Select the picture quality. 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.
When satisfied with the settings, click Save , or click Reset to revert to previously saved settings.
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