Separating directional lighting variability in statistical face modelling based on texture space decomposition
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United States of America Patent
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Aug 13, 2013
Grant Date -
Aug 28, 2008
app pub date -
Feb 27, 2008
filing date -
Feb 28, 2007
priority date (Note) -
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Abstract
A technique for determining a characteristic of a face or certain other object within a scene captured in a digital image including acquiring an image and applying a linear texture model that is constructed based on a training data set and that includes a class of objects including a first subset of model components that exhibit a dependency on directional lighting variations and a second subset of model components which are independent of directional lighting variations. A fit of the model to the face or certain other object is obtained including adjusting one or more individual values of one or more of the model components of the linear texture model. Based on the obtained fit of the model to the face or certain other object in the scene, a characteristic of the face or certain other object is determined.
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Family
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Cited Art Landscape
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