User manual

3.7.5. Pan Tilt Zoom
This menu provided settings to zoom and shrink the image, as well as panning within the image.
Pan Tilt Zoom (PTZ) can be switched ON or OFF.
Note :- When switched ON the latency of the system is increased by one frame. Thus, there is a
difference of a PTZ setting OFF or ON even if no adjustments are applied.
Note :- PTZ settings can be saved ‘per mode’ or ‘globally’, . if set to global the same PTZ settings are
applied to all input channels or if set to per mode the PTZ setting will only be applied to the input you
have selected.
The Zoom slider allows to zoom into the image or shrink it.
When Aspect Lock is set to ON the separate slider for zooming vertically is greyed out and the
horizontal zoom or shrink factor is used as vertical factor as well. The aspect ratio is preserved.
When Aspect Lock is OFF horizontal and vertical scaling factors can be chosen separately.
With the Pan and Tilt sliders panning within the image in horizontal and vertical direction is possible. Off
raster panning is allowed so the image can be shifted outside the active area of the display.
For convenience the PTZ settings can be reset with one button.
3.7.6. Warp
Submenu for warping the image and defining projection condition. The projection condition can be Front
Table top, Front Ceiling, Rear Table top or Rear Ceiling. The corresponding image flip is applied on top
of the following warp applications.
The warp applications are Keystone, 4-Corner, Rotation, and PC. Special portrait warp applications for
clockwise (90°) and counter-clockwise (270°) rotation with scaling are provided as well.
Under the Keystone application the image can be adjusted to match a horizontally and vertically tilted
screen. Also, Pin and Barrel distortion of the lens or screen can be adjusted simultaneously.
Under the 4-Corner application all corners can be moved and the image is calculated to fit into the given
trapezoid.
The Rotation application let you rotate the image from -180 to 180 degree (one full circle). At the same
time Pin and Barrel distortion of the lens or screen can be adjusted again.
Predefined warp maps for portrait mode applications are provided. A 9:16 input image area is rotated
and scaled such that is fills a 16:9 screen.
With PC application activated the VP-793 communicates with the PC tool Warp Generator. Warp
Generator allows you to define an arbitrary screen in live operation by projecting a grid on the surface
and move the grid points to get a rectangular output. This grid information can then be downloaded in
one of eight slots used for real-time processing of image data which make the image appear rectangular
on a curved screen
The warp generator software allows rotation, scaling and warping simultaneously..
For convenience all settings can be reset with one button provided in the submenus.