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5.4
Virtual Background Editing
In Virtual Background editing, each mix effect (M/E) behaves like a real camera. In other words,
selection of an M/E is like selecting a camera in a multi-camera environment. Each phase
corresponds to a virutal camera position. The user can switch between phases by clicking on
phase windows, which is similar to the "cut transition" effect on a switcher.
In the Virtual Background Editing area, the user is provided with multiple mix effects to perform
advanced editing of up to a maximum of four virtual studios (M/E1 – M/E4). In each of the M/E
editing, there are three phases available, allowing the user to zoom in to the talent with each
phase corresponding to a user-defined zoom distance. Please refer to the diagram below for
diagrammatic illustration.
The virtual studio configuration panel is located at the bottom left-hand corner of the screen.
Two rows of buttons located below the three phase windows serve the purpose of allowing the
user to select talent material source and plasma TV material source. As depicted in the diagram
above, row A is for talent material source selection and row B is for plasma TV material source
selection. The sources can be live show from HDMI Camera, AUX Card Output, Media 1 or 2, Still
1 or 2, or even Black if necessary. The selected source button is illuminated in amber.
Usually Row A is the talent image from the CAM source. The keying filter is overlaid on this
source. The keying filter overlay removes the single-colour background on which the talent is
shot (e.g. green). The other signal source, Row B, may be a video or a still image. It is usually
displayed on a virtual screen, which is designed as part of the studio set. However, it all depends
on the studio design. Signals can be used differently in every studio. Because of this, signals are
denoted in a universal way, as A and B, in the studio configuration panel.
After selecting the talent and plasma TV material sources, the next step is to customize your
program. There are three features that give the user the ability to customize their program:
import, placement and auto play. Import allows the user to select their preferred virtual
background. Placement gives the user the flexibility of positioning the selected virtual
background. Auto Play generates the animated PTZ transition effect.
Cut: Instantaneous switching between
Preview and Program screens
Fade: Gradual switching between
Preview and Program; fade time will
be based on Time and Frame presets
in seconds.
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