Method and system for processing a signal including at least a component representative of a periodic phenomenon in a living being
First Claim
1. Method of processing a signal including at least a component representative of a periodic phenomenon in a living being, including:
- receiving a sequence of images showing the living being;
extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being from the sequence of images using remote plethysmography;
obtaining separate data representative of at least a periodic component of motion of the living being by carrying out motion analysis of the sequence of images; and
using the data at least to suppress a component of the first signal corresponding to the periodic component of motion of the living being, wherein the method is unobtrusive to the living being, and wherein the living being can be in motion.
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Abstract
A method of processing a signal including at least a component representative of a periodic phenomenon in a living being includes obtaining a sequence of images showing the living being, extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being from the sequence of images using remote plethysmography. Separate data representative of at least a periodic component of motion of the living being are obtained by carrying out motion analysis of the sequence of images. The data are used at least to suppress a component of the first signal corresponding to the periodic component of motion of the living being. The method is unobtrusive to the living being, and the living being can be in motion.
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Citations
18 Claims
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1. Method of processing a signal including at least a component representative of a periodic phenomenon in a living being, including:
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receiving a sequence of images showing the living being; extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being from the sequence of images using remote plethysmography; obtaining separate data representative of at least a periodic component of motion of the living being by carrying out motion analysis of the sequence of images; and using the data at least to suppress a component of the first signal corresponding to the periodic component of motion of the living being, wherein the method is unobtrusive to the living being, and wherein the living being can be in motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. System for processing a signal including at least a component representative of a periodic phenomenon in a living being, including:
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an interface for receiving a sequence of images showing the living being in an unobtrusive manner, a processing system for extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being from the sequence of images using remote plethysmography;
for obtaining separate data representative of at least a periodic component of motion of the living being;
for carrying out motion analysis of the sequence of images; and
for using the data to at least suppress a component of the first signal corresponding to the periodic component of motion of the living being, wherein the living being can be in motion.
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14. A non-transitory computer readable storage medium storing a program which, when executed by a computer, causes the computer to perform a method of processing a signal including at least a component representative of a periodic phenomenon in a living being, said method comprising:
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receiving a sequence of images showing the living being; extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being from the sequence of images using remote plethysmography; obtaining separate data representative of at least a periodic component of motion of the living being by carrying out motion analysis of the sequence of images; and using the data at least to suppress a component of the first signal corresponding to the periodic component of motion of the living being, wherein the method is unobtrusive to the living being, and wherein the living being can be in motion.
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15. Method of processing a signal including at least a component representative of a periodic phenomenon in a living being, including:
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extracting at least one first signal having at least a component representative of a periodic phenomenon in a living being; obtaining separate data representative of at least a periodic component of motion of the living being, by obtaining a sequence of images showing the living being, synchronized with the at least one first signal, and carrying out motion analysis of the sequence of images; using the data at least to suppress a component of the first signal corresponding to the periodic component of motion of the living being; calculating at least one motion vector for at least one subject represented in the images; filtering said at least one motion vector; and subtracting the filtered motion vector from said first signal to suppress a component of the first signal corresponding to the periodic component of motion of the living being and to obtain a disturbance reduced first signal. - View Dependent Claims (16, 17, 18)
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Specification