Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2005-08-30
2005-08-30
Chang, Jon (Department: 2623)
Image analysis
Applications
Target tracking or detecting
C382S118000
Reexamination Certificate
active
06937745
ABSTRACT:
The present invention includes in a system and method for estimating and tracking an orientation of a user's face by combining head tracking and face detection techniques. The orientation of the face, or facial pose, can be expressed in terms of pitch, roll and yaw of the user's head. Facial pose information can be used, for example, to ascertain in which direction the user is looking. In general, the facial pose estimation method obtains a position of the head and a position of the face and compares the two to obtain the facial pose. In particular, a camera is used to obtain an image containing a user's head. Any movement of the user's head is tracked and the head position is determined. A face then is detected on the head and the face position is determined. The head and face positions then are compared.
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Chang Jon
Fischer Craig S.
Lyon & Harr L.L.P.
Microsoft Corporation
Upreti A.
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