Camera pose correction
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United States of America Patent
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Jun 10, 2014
Grant Date -
Oct 13, 2011
app pub date -
Apr 8, 2011
filing date -
Apr 12, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The invention concerns correcting an error in an estimated pose of a moveable camera. The camera is at least a part of a camera system that generates an output image on the basis of the camera pose. Incremental pose measurements for the camera are taken over time and a pose of the camera using the incremental pose measurements is estimated, the estimated camera pose having an error. A pose correction is determined on the basis of the difference between an absolute pose measurement for the camera and the estimated camera pose. A rate of change in the camera image caused by a change in the camera is monitored. A parameter of the camera system is periodically adjusted based on the incremental pose measurements. The adjustment is further set in order to effect the pose correction so as to correct for the estimated camera pose error and the pose correction is effected at a rate based on the monitored rate of change in the camera image.
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