VITEK VTC-TNB2LPR
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Drag “ ” icons to set the time of day and night. Blue means daytime and blank means night. If
the current mode of camera parameters is set to schedule, the image configuration mode will
automatically switch between day and night according to the schedule.
4.2.2
Video / Audio Configuration
Go to Image
à
Video / Audio interface as shown below. In this interface, set the resolution, frame
rate, bitrate type, video quality and so on subject to the actual network condition.
Click the “Audio” tab to go to the interface as shown below.
Three video streams can be adjustable.
Resolution
: The size of image.
Frame rate
: With a higher the frame rate the video is smoother.
Bitrate type
: CBR and VBR are optional. Bitrate is related to image quality. CBR means that no
matter how much change is seen in the video scene, the compression bitrate will be kept constant.
VBR means that the compression bitrate will be adjusted according to scene changes. For example,
for scenes that do not have much movement, the bitrate will be kept at a lower value. This can
help optimize the network bandwidth usage.
Bitrate
: Can be adjusted when the mode is set to CBR. The higher the bitrate, the better the
image quality will be.
Video Quality
: It can be adjusted when the mode is set to VBR. The higher the image quality, the
more bitrate will be required.
I Frame interval
: It determines how many frames are allowed between a “group of pictures”.
When a new scene begins in a video, until that scene ends, the entire group of frames (or
pictures) can be considered as a group of pictures. If there is not much movement in the scene,
