REAL-TIME PHYSIOLOGICAL CHARACTERISTIC DETECTION BASED ON REFLECTED COMPONENTS OF LIGHT
First Claim
1. A method comprising:
- receiving from an image capture device color channel signals including data representing one or more images;
forming a linear combination of the color channel signals as a combined color channel signal;
transforming continuously at a processor the combined color channel signal to establish local maxima associated with multiple scale parameters;
identifying portions of time associated with the local maxima;
deriving a physiological characteristic based on the portions of time; and
generating a data signal representing the physiological characteristic.
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Accused Products
Abstract
Embodiments relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and wearable/mobile computing devices configured to facilitate health and wellness monitoring and maintenance. More specifically, disclosed are systems, components and methods to detect physiological characteristics, such as heart rate, of an organism in real-time based on components of light. In various embodiments, a method can include receiving color channel signals including imagery data generated by, for example, an image capture device. A linear combination of the color channel signals can form a combined color channel signal. The method also can include transforming continuously the combined color channel signal to establish local maxima associated with multiple scales. Further, portions of time associated with the local maxima can be identified and data signal representing a physiological characteristic can be generated. A local maximum can indicate the presence of enhanced blood volume adjacent a tissue surface.
17 Citations
19 Claims
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1. A method comprising:
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receiving from an image capture device color channel signals including data representing one or more images; forming a linear combination of the color channel signals as a combined color channel signal; transforming continuously at a processor the combined color channel signal to establish local maxima associated with multiple scale parameters; identifying portions of time associated with the local maxima; deriving a physiological characteristic based on the portions of time; and generating a data signal representing the physiological characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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a processor configured to execute instructions; and a memory including modules of executable instructions, the modules comprising; executable instructions to implement a continuous wavelet transformer module configured to transform continuously a combined color channel signal to establish local maxima associated with multiple scale parameters; executable instructions to implement a maxima detector module configured to identifying portions of time associated with the local maxima for the combined color channel signal, the local maxima specifying a range of frequencies of light associated with a presence of an amount of blood adjacent a tissue surface from which the light in the combined color channel signal originates; and executable instructions to implement a multi-scale physiological estimator configured to estimate heart beats per unit time in real-time based on the rate at which the portions of time occur over at least a subset of the multiple scale parameters. - View Dependent Claims (16, 17, 18, 19)
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Specification