Systems and methods for removing a background of an image
First Claim
Patent Images
1. A computer-readable storage device having stored thereon computer executable instructions for processing depth information of a scene, the computer executable instructions comprising instructions for:
- receiving a depth image of the scene, wherein the depth image comprises one or more objects;
determining that at least one object of the one or more objects in the depth image is moving, wherein determining that the at least one object of the one or more objects in the depth image is moving comprises;
comparing a value associated with each voxel in the one or more objects with a corresponding value of a reference voxel included in a reference plate;
identifying each voxel in the one or more objects as moving when a difference between the value and the corresponding value exceeds a motion threshold;
calculating a foreground score based on a percentage of moving voxels associated with the at least one object; and
identifying the at least one object as moving when the foreground score exceeds a score threshold;
isolating the at least one object that is moving; and
processing the at least one isolated object.
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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 then be discarded to isolate one or more voxels associated with a foreground object such as a human target and the isolated voxels associated with the foreground object may be processed.
298 Citations
14 Claims
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1. A computer-readable storage device having stored thereon computer executable instructions for processing depth information of a scene, the computer executable instructions comprising instructions for:
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receiving a depth image of the scene, wherein the depth image comprises one or more objects; determining that at least one object of the one or more objects in the depth image is moving, wherein determining that the at least one object of the one or more objects in the depth image is moving comprises; comparing a value associated with each voxel in the one or more objects with a corresponding value of a reference voxel included in a reference plate; identifying each voxel in the one or more objects as moving when a difference between the value and the corresponding value exceeds a motion threshold; calculating a foreground score based on a percentage of moving voxels associated with the at least one object; and identifying the at least one object as moving when the foreground score exceeds a score threshold; isolating the at least one object that is moving; and processing the at least one isolated object. - View Dependent Claims (2, 3, 4, 5)
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6. A system for processing depth information of a scene, the system comprising:
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a capture device, wherein the capture device comprises a camera configured to capture a depth image of the scene; and a computing device communicatively coupled to the capture device, wherein the computing device comprises a processor and memory storing thereon computer-readable instructions that, when executed by the processor, cause the computing device to perform operations comprising; generating a downsampled depth image comprising one or more objects based on one or more pixels in the depth image received from the capture device; determining that at least one object of the one or more objects in the downsampled depth image is moving, wherein determining that the at least one object of the one or more objects in the downsampled depth image is moving comprises; comparing a value associated with each voxel in the one or more objects with a corresponding value of a reference voxel included in a reference plate; identifying each voxel in the one or more objects as moving when a difference between the value and the corresponding value exceeds a motion threshold; calculating a foreground score based on a percentage of moving voxels associated with the at least one object; and identifying the at least one object as moving when the foreground score exceeds a score threshold; isolating the at least one object that is moving; and processing the at least one isolated object. - View Dependent Claims (7, 8, 9)
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10. A method for processing depth information of a scene, the method comprising:
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receiving a depth image of the scene, wherein the depth image comprises one or more objects; determining that at least one object of the one or more objects in the depth image is moving;
wherein determining that the at least one object of the one or more objects in the depth image is moving comprises;comparing a value associated with each voxel in the one or more objects with a corresponding value of a reference voxel included in a reference plate; identifying each voxel in the one or more objects as moving when a difference between the value and the corresponding value exceeds a motion threshold; calculating a foreground score based on a percentage of moving voxels associated with the at least one object; and identifying the at least one object as moving when the foreground score exceeds a score threshold; isolating the at least one object that is moving; and processing the at least one isolated object. - View Dependent Claims (11, 12, 13, 14)
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Specification