Operation Manual
VIVOTEK
28 - User's Manual
1R (Single Regional) Display mode: 
The 1R mode provides  access to one image  section within the hemisphere. You can zoom in  or out 
(using the mouse wheel or PTZ panel) or travel through to other areas within the hemisphere using 
simple mouse clicks and drags. A single click on a particular object can bring the object to the center 
of your  view window. Click  and hold  down the  left mouse  button, and  you  can  swipe  the  view  both 
horizontally and vertically. 
1R View (Single Regional View)
Zoom in/out
&
all-directional
navigation control
Zoom In
Zoom Out
2P (Dual Panoramic View) Display mode:
Similar to 1P, the 2P display mode provides simultaneous access to both the front and rear sections of 
a hemisphere. Both panoramic views are corrected into a more viewable dewarped image. Viewers can 
use a mouse click and drag to quickly scroll horizontally through the surveillance area. 
2P View (Panoramic View)
Front hemi
Rear hemi
Extended to rectilinear view (Dewarp)










