Measurement of vital signs based on images recorded by an egocentric camera
AssigneeGoogle Inc.
InventorsDongeek Shin, Shwetak N. Patel
Life of this patent
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Abstract
A method for determining one or more vital signs of a person includes recording video images of a scene with an egocentric camera coupled to the person's body, detecting and magnifying image frame-to-image frame movements in the video images of the scene, representing the magnified image frame-to-image frame movements in the video images of the scene by a one-dimensional (1D) amplitude-versus-time series, and transforming the 1D amplitude-versus-time series representation into a frequency spectrum. The method further includes identifying one or more local frequency maxima in the frequency spectrum as corresponding to one or more vital signs of the person.
Claims20
A computer program product, the computer program product being tangibly embodied on a non-transitory computer-readable storage medium and comprising instructions that, when executed by at least one computing device coupled to an egocentric camera disposed on a person, are configured to cause the at least one computing device to:
- record video images of a scene using the egocentric camera;
- detect and magnify image frame-to-image frame movements in the video images of the scene;
- represent the magnified image frame-to-image frame movements in the video images of the scene by a one-dimensional (1D) amplitude-versus-time series;
- transform the 1D amplitude-versus-time series representation into a frequency spectrum;
- and
- identify one or more local frequency maxima in the frequency spectrum as corresponding to one or more vital signs of the person.
A method comprising:
- recording video images of a scene with an egocentric camera coupled to a person's body;
- detecting and magnifying image frame-to-image frame movements in the video images of the scene;
- representing the magnified image frame-to-image frame movements in the video images of the scene by a one-dimensional (1D) amplitude-versus-time series;
- transforming the 1D amplitude-versus-time series representation into a frequency spectrum;
- and
- identifying one or more local frequency maxima in the frequency spectrum as corresponding to one or more vital signs of the person.
A computing device comprising:
- a processor;
- and
- a storage medium storing instructions;
- wherein the instructions, when executed by the processor, cause the computing device to:
- record video images of a scene using an egocentric camera coupled to a person's body;
- detect and magnify image frame-to-image frame movements in the video images of the scene;
- represent the magnified image frame-to-image frame movements in the video images of the scene by a one-dimensional (1D) amplitude-versus-time series;
- transform the 1D amplitude-versus-time series representation into a frequency spectrum;
- and
- identify one or more local frequency maxima in the frequency spectrum as corresponding to one or more vital signs of the person.
Dependencies are inferred from the claim text.