Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 250)

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250 - User's Manual
Fisheye Display Modes: below are conceptual drawings for different display modes.
1O View (Original View)
180° Hemispheric
1R View (Single Regional View)
Zoom in/out
&
all-direction
navigation control
Zoom In Zoom Out
An Original oval view covers the hemisphere taken by the fisheye lens.
A Regional view crops a portion of the hemisphere as a region of interest. You can zoom in or out or
move the view area elsewhere from on the regional view.
A Regional view is dewarped, by correcting images from the distorted oval view to a rectangular and
visually proportional image.
1O (Single Original) Display mode:
1R (Single Regional) Display mode: