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US 9,754,154 B2Granted
Identification using depth-based head-detection data
AssigneeMicrosoft Technology Licensing, LLC
InventorsRobert M. Craig, Vladimir Tankovich, Craig Peeper, Ketan Dalal, Bhaven Dedhia, Casey Meekhof
Life of this patent
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Abstract
A candidate human head is found in depth video using a head detector. A head region of light intensity video is spatially resolved with a three-dimensional location of the candidate human head in the depth video. Facial recognition is performed on the head region of the light intensity video using a face recognizer.
Claims20
On a computing system, a method comprising:
- receiving a depth video;
- receiving a light intensity video at least partially spatially-registered to the depth video;
- finding a candidate human head in the depth video using a head detector;
- spatially resolving a head region of the light intensity video with a three-dimensional location of the candidate human head in the depth video, the head region defining a limited portion of the light intensity video;
- and
- performing facial recognition on only the head region of the light intensity video using a face recognizer.
3 more elements
A computing system, comprising:
- a logic machine;
- and
- a storage machine holding instruction executable by the logic machine to:
- receive a depth video;
- receive an infrared video at least partially spatially-registered to the depth video;
- find a candidate human head in the depth video using a previously-trained, machine-learning head detector;
- spatially resolve a head region of the infrared video with a three-dimensional location of the candidate human head in the depth video, the head region defining a limited portion of the infrared video;
- perform facial recognition on only the head region of the infrared video using a previously-trained, machine-learning face recognizer;
- and
- perform skeletal modeling on a body region of the depth video using a previously-trained, machine-learning body tracker to produce a skeletal model, the body region being spatially contiguous with the three-dimensional location of the candidate human head, and the body region defining a limited portion of the depth video.
7 more elements
A computing system, comprising:
- a logic machine;
- and
- a storage machine holding instruction executable by the logic machine to:
- receive a depth video;
- receive an infrared video at least partially spatially-registered to the depth video;
- find a candidate human head in the depth video using a previously-trained, machine-learning head detector;
- spatially resolve a head region of the infrared video with a three-dimensional location of the candidate human head in the depth video, the head region defining a limited portion of the infrared video;
- perform facial recognition on only the head region of the infrared video using a previously-trained, machine-learning face recognizer;
- perform skeletal modeling on a body region of the depth video using a previously-trained, machine-learning body tracker to produce a skeletal model, the previously-trained, machine-learning body tracker being configured to constrain a head joint of the skeletal model to the three-dimensional location of the candidate human head as identified by the previously-trained, machine-learning head detector, the body region being spatially contiguous with the three-dimensional location of the candidate human head, and the body region defining a limited portion of the depth video.
6 more elements
Dependencies are inferred from the claim text.