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Extractor Help
This is a help screen for background
extraction.
 What does Extractor do?
The Extraction
component is used to create the blue-screened videos, or also known as
background extraction. The Extractor engine searches for the background and
removes it isolating the athlete’s motion.
What videos are required for an Extractor?
Like
the Freezer engine, two videos are required: a background and subject
video. See the page on removing backgrounds for details on configurations.
Where is the Extractor stored and how do you start
it?
In version 1.0 to 1.2 the Extracter engine is stored
in the "Engines" area of the Control Panel. In Version 1.2.5 and
above, the exrtactor engine is located in the "Tools" area.
To start this component click on the (version
1.0/1.2) "Xtraction", (1.2.5) "Motion Extractor" ICON.
How does
the Extractor user interface work?
1. Use the
gallery component to find the background video (video without subject). When
located, drag and drop this video on to the window panel called
"BACKGROUND"
2. Again, use the gallery
to find the video with the subject. When located, drag and drop this video on
the window panel called "GOLFER"
3. The button on this
component will become active when both videos are loaded. Click on this
button, and the component will create a new video in the current gallery
position and begin processing the videos. A progress bar will indicate the
progress of the operation.
After complete, the Extractor can
be reused to process the same
two videos or two different video clips.
Can you choose start a
stop point?
Yes. Like the
play component the green and red dots on the timeline can be moved to choose
the start and stop points. As in the example picture, above you will see,
the green and red dots are only on a piece of the video.
It is suggested you minimize
the model videos to smallest possible because these videos are large.
This extra size is caused by no compression of the video frames.
Note the position selector of
the subject video can be used to browse through the video looking for the
best start/stop positions.
Can your choose what frame to use as the background?
Yes. The
little position selection arrow above the background can be moved to find the
best frame for the background. See in the example above the background
position pointer is moved one quarter of the distance from the beginning.
How are the result videos named?
Resulting videos
from the extraction are given the same name as the subject video, but
prefixed with the word "Extract_". The directory where these
videos will be stored depends on the gallery configuration for new files. See gallery help .
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