Projector, multi-screen system, projector control method, computer program product, and information storage medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 7, 2011
Grant Date -
Aug 13, 2009
app pub date -
Feb 12, 2009
filing date -
Feb 13, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A image pickup unit picks up an image of a video projected by a projection unit and outputs the picked-up image. A control unit determines whether the picked-up image includes a projection video other than the video projected by the projection unit or not. If the control unit determines that the picked-up image includes a projection video other than the video projected by the projection unit, the control unit instructs a keystone correction unit to carry out keystone correction of the video signal in accordance with the picked-up image. The keystone correction unit carries out keystone correction of the input video signal or the output video signal so that an edge of the video projected by the projection unit contacts an edge of the projection video other than the video projected by the projection unit.
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