ANONYMIZED VIDEO ANALYSIS METHODS AND SYSTEMS
First Claim
1. A method comprising:
- accessing a first silhouette image of a person in a living unit, the first silhouette image based on a first video signal recorded by a first video camera;
accessing a second silhouette image of the person in the living unit, the second silhouette image being of a different view of the person than the first silhouette image, the second silhouette image based on a second video signal recorded by a second video camera, the second video camera being a different video camera than the first video camera, the first video camera and the second video camera being positioned to record an area of the living unit from a different position in the living unit; and
generating a three-dimensional model of the person in voxel space based on the first silhouette image, the second silhouette image, and viewing conditions of the first video camera and the second video camera.
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Abstract
Methods and systems for anonymized video analysis are described. In one embodiment, a first silhouette image of a person in a living unit may be accessed. The first silhouette image may be based on a first video signal recorded by a first video camera. A second silhouette image of the person in the living unit may be accessed. The second silhouette image may be of a different view of the person than the first silhouette image. The second silhouette image may be based on a second video signal recorded by a second video camera. A three-dimensional model of the person in voxel space may be generated based on the first silhouette image, the second silhouette image, and viewing conditions of the first video camera and the second video camera. In some embodiments, information on falls, gait parameters, and other movements of the person living unit are determined. Additional methods and systems are disclosed.
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Citations
29 Claims
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1. A method comprising:
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accessing a first silhouette image of a person in a living unit, the first silhouette image based on a first video signal recorded by a first video camera; accessing a second silhouette image of the person in the living unit, the second silhouette image being of a different view of the person than the first silhouette image, the second silhouette image based on a second video signal recorded by a second video camera, the second video camera being a different video camera than the first video camera, the first video camera and the second video camera being positioned to record an area of the living unit from a different position in the living unit; and generating a three-dimensional model of the person in voxel space based on the first silhouette image, the second silhouette image, and viewing conditions of the first video camera and the second video camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method comprising:
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generating a plurality of three-dimensional models of a person in voxel space, the plurality of three-dimensional models associated with a time period, a particular three dimensional model based on a first silhouette image of a person in a living unit, the first silhouette image based on a first video signal recorded by a first video camera, a second silhouette image of the person in the living unit, and viewing conditions of the first video camera and the second video camera, the second silhouette image based on a second video signal recorded by a second video camera, the second video camera being a different video camera than the first video camera, the first video camera and the second video camera being positioned to record an area of the living unit from a different position in the living unit; analyzing the plurality of three-dimensional models to identify a first state and a second state of the person during the time period; selecting a description based on analysis of the plurality of three-dimensional models; and generating a display including the description. - View Dependent Claims (25, 26, 27)
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28. A non-transitory machine-readable medium comprising instructions, which when executed by one or more processors, cause the one or more processors to perform the following operations:
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access a first silhouette image of a person in a living unit, the first silhouette image based on a first video signal recorded by a first video camera; access a second silhouette image of the person in the living unit, the second silhouette image being of a different view of the person than the first silhouette image, the second silhouette image based on a second video signal recorded by a second video camera, the second video camera being a different video camera than the first video camera, the first video camera and the second video camera being positioned to record an area of the living unit from a different position in the living unit; and generate a three-dimensional model of the person in voxel space based on the first silhouette image, the second silhouette image, and viewing conditions of the first video camera and the second video camera.
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29. A system comprising:
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a processor and a memory coupled to the processor; a silhouette image access module to access a first silhouette image of a person in a living unit, the first silhouette image based on a first video signal recorded by a first video camera, and access a second silhouette image of the person in the living unit, the second silhouette image being of a different view of the person than the first silhouette image, the second silhouette image based on a second video signal recorded by a second video camera, the second video camera being a different video camera than the first video camera, the first video camera and the second video camera being positioned to record an area of the living unit from a different position in the living unit; and a voxel person generation module to generate a three-dimensional model of the person in voxel space based on the first silhouette image, the second silhouette image, and viewing conditions of the first video camera and the second video camera.
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Specification