Operating instructions

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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. When switching on the latency of the system is

increased by one frame. Thus, there is a difference of a PTZ setting off or on with no zoom. PTZ

settings can be saved per mode or globally, i.e. the same PTZ settings are applied when switching input

channels or changing the input mode.

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, i,e, 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

Tabletop, Front Ceiling, Rear Tabletop 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/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/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 HQView-325 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.

For convenience all settings can be reset with one button provided in the submenus.