Head pose tracking system
First Claim
Patent Images
1. A method, comprising:
- receiving initial video images representative of a conferee'"'"'s head;
evaluating the initial video images to form an initial reference model having initial features to monitor a head position of the conferee;
tracking the head position of the conferee using updates to the initial features as subsequent video images are received; and
activating an auto-recovery tracking process using the initial reference model that does not included the updates when tracking of the conferee'"'"'s head is temporarily interrupted.
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Abstract
Video images representative of a conferee'"'"'s head are received and evaluated with respect to a reference model to monitor a head position of the conferee. A personalized face model of the conferee is captured to track head position of the conferee. In a stereo implementation, first and second video images representative of a first conferee taken from different views are concurrently captured. A head position of the first conferee is tracked from the first and second video images. The tracking of head-position through a personalized model-based approach can be used in a number of applications such as human-computer interaction and eye-gaze correction for video conferencing.
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Citations
16 Claims
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1. A method, comprising:
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receiving initial video images representative of a conferee'"'"'s head; evaluating the initial video images to form an initial reference model having initial features to monitor a head position of the conferee; tracking the head position of the conferee using updates to the initial features as subsequent video images are received; and activating an auto-recovery tracking process using the initial reference model that does not included the updates when tracking of the conferee'"'"'s head is temporarily interrupted. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system, comprising:
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means for receiving initial video images representative of a conferee'"'"'s head; means for evaluating the initial video images to form an initial reference model having initial features to monitor a head position of the conferee; means for tracking the head position of the conferee using updates to the initial features as subsequent video images are received; and means for activating an auto-recovery tracking process using the initial reference model that does not included the updates when tracking of the conferee'"'"'s head is temporarily interrupted. - View Dependent Claims (8, 9, 10, 11)
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12. One or more computer-readable media having stored thereon computer executable instructions that, when executed by one or more processors, causes the one or more processors of a computer system to:
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store a personalized face model of a conferee; receive initial video images representative of the conferee'"'"'s face; evaluate the initial video images to form an initial reference model having initial features to monitor a head position of the conferee; track the head position of the conferee using updates to the initial features as subsequent video images are received; and activate an auto-recovery tracking process using the initial reference model that does not included the updates, if the tracking of the conferee'"'"'s head is temporarily interrupted. - View Dependent Claims (13, 14, 15, 16)
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Specification