Vivotek 4712123678542, Руководство пользователя

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VIVOTEK
User's Manual - 69
Media > Video
This Network Camera supports multiple streams with frame sizes ranging from 480 x 272 to 3840 x
2160 pixels
The definition of multiple streams:
■ Stream 1: Users can define the "Region of Interest" (viewing region) and the "Output Frame Size"
(size of the live view window).
■ Stream 2: The default frame size for Stream 2 is set to the 640 x 360.
■ Stream 3: The default frame size for Stream 3 is set to the 3840 x 2160.
Click
Viewing Window
to open the viewing region settings page. On this page, you can configure
the
Region of Interest
and the
Output Frame Size
for a video stream. For example, you can crop
only a portion of the image that is of your interest, and thus save the bandwidth needed to transmit
the video stream. As the picture shown below, the area of your interest in a parking lot should be
the vehicles. The blue sky is of little value for the surveillance purpose.
Mode
If the 4K Ultra HD display mode is selected, the maximum frame rate is 30 fps. By default, WDR
is enabled in this mode. When resolution is reduced to 1080P, the maximum frame rate can reach
120.