Patent ID: 11861927
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A system for tracking subjects in three-dimensional space comprising:
a processing system receiving a plurality of synchronized sequences of images captured by cameras with fields of view in the three-dimensional space, wherein the processing system is programmed with one or more sets of instructions that, when executed, cause the processing system to at least:
process images in a first set of sequences of the plurality of synchronized sequences captured during a first period of time to generate at least a first set of joint data corresponding to a first subject, wherein the first set of joint data maps first locations of a plurality of joints of the first subject to positions in three-dimensional space at a first time;
process images in a second set of sequences of the plurality of synchronized sequences captured during a second period of time to identify candidate joints having second locations represented by positions in three-dimensional space at a second time; and
track movement of at least the first subject by matching at least some of the candidate joints having the second locations with joints having the first locations in the first set of joint data; and
update the positions of the plurality of joints of the first subject in three-dimensional space at the second time based at least in part on the second locations at the second time.