Visual target tracking using model fitting and exemplar
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United States of America Patent
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Jul 5, 2011
Grant Date -
Mar 10, 2011
app pub date -
Nov 23, 2010
filing date -
Jan 30, 2009
priority date (Note) -
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Abstract
A method of tracking a target includes receiving an observed depth image of the target from a source and analyzing the observed depth image with a prior-trained collection of known poses to find an exemplar pose that represents an observed pose of the target. The method further includes rasterizing a model of the target into a synthesized depth image having a rasterized pose and adjusting the rasterized pose of the model into a model-fitting pose based, at least in part, on differences between the observed depth image and the synthesized depth image. Either the exemplar pose or the model-fitting pose is then selected to represent the target.
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