Virtual multiway scaler compensation
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United States of America Patent
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Mar 20, 2012
Grant Date -
Jan 15, 2009
app pub date -
Jul 11, 2008
filing date -
Jul 13, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
In various embodiments, a multipoint control unit (MCU) may arrange incoming video images into a composite video image and define their respective coordinate information including the size of the original composite video image. The MCU may subsequently scale the composite video image. The coordinate information for the scaled composite video image may be reformatted for the resized video images. When the endpoint receives the scaled composite video image, the endpoint may detect the actual size of the scaled composite video image and may determine the new coordinates of the video images in the scaled composite video image using a ratio of the size of the original composite video image to the actual size detected by the endpoint. These new coordinates may then be used to separate the images in the scaled composite video image to use in compositing a new composite video image.
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