Human tracking system
First Claim
Patent Images
1. A method for tracking a user, the method comprising:
- receiving a depth image;
generating a first voxel of a plurality of voxels based on at least one pixel of the depth image that corresponds to a background independent of at least one pixel that corresponds to a human target, the first voxel overlapping another voxel in the plurality of voxels;
removing the first voxel from the plurality of voxels to isolate one or more voxels associated with the human target;
determining a location or position of one or more extremities of the human target based on the one or more voxels associated with the human target; and
adjusting a model based on the location or position of the one or more extremities.
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Abstract
An image such as a depth image of a scene may be received, observed, or captured by a device. A grid of voxels may then be generated based on the depth image such that the depth image may be downsampled. A background included in the grid of voxels may also be removed to isolate one or more voxels associated with a foreground object such as a human target. A location or position of one or more extremities of the isolated human target may be determined and a model may be adjusted based on the location or position of the one or more extremities.
286 Citations
20 Claims
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1. A method for tracking a user, the method comprising:
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receiving a depth image; generating a first voxel of a plurality of voxels based on at least one pixel of the depth image that corresponds to a background independent of at least one pixel that corresponds to a human target, the first voxel overlapping another voxel in the plurality of voxels; removing the first voxel from the plurality of voxels to isolate one or more voxels associated with the human target; determining a location or position of one or more extremities of the human target based on the one or more voxels associated with the human target; and adjusting a model based on the location or position of the one or more extremities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-readable storage device bearing computer-readable instructions that, when executed on a computer, cause the computer to perform operations comprising:
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receiving a depth image; generating a first voxel of a plurality of voxels based on at least one pixel of the depth image that corresponds to a background independent of at least one pixel that corresponds to a human target, the first voxel overlapping another voxel in the plurality of voxels; removing the first voxel from the plurality of voxels to isolate one or more voxels associated with the human target; determining a location or position of one or more extremities of the human target based on the one or more voxels associated with the human target; and adjusting a model based on the location or position of the one or more extremities. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system for tracking a model associated with a user, the system comprising:
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a capture device that receives a depth image of a scene; and a memory bearing instructions that, upon execution by a processor, cause the system at least to; receive the depth image from the capture device; generate a first voxel of a plurality of voxels based on at least one pixel of the depth image that corresponds to a background independent of at least one pixel that corresponds to a human target, the first voxel overlapping another voxel in the plurality of voxels; remove the first voxel from the plurality of voxels to isolate one or more voxels associated with the human target; determine a location or position of one or more extremities of the human target based on the one or more voxels associated with the human target; and adjust a model based on the location or position of the one or more extremities. - View Dependent Claims (17, 18, 19, 20)
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Specification