System and method for removing artifacts from waveforms
First Claim
1. A method for processing a physiological signal, the method comprising the acts of:
- identifying one or more artifacts in a physiological signal;
performing one or more multi-resolution decompositions on the physiological signal to generate two or more decomposition products; and
compensating for the one or more artifacts in the two or more decomposition products to generate modified decomposition products.
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Accused Products
Abstract
A technique is provided for processing a physiological signal to compensate for artifacts. The technique includes identifying artifacts within the physiological signal. The technique also includes performing one or more multi-resolution decompositions, such as wavelet transformations, on the physiological signal and compensating for the identified artifacts in some or all of the respective decomposition components. The modified decomposition components may be reconstructed to generate an artifact-compensated signal which may be provided to a monitor or other device which is otherwise not configured to compensate for signal artifacts.
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Citations
53 Claims
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1. A method for processing a physiological signal, the method comprising the acts of:
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identifying one or more artifacts in a physiological signal;
performing one or more multi-resolution decompositions on the physiological signal to generate two or more decomposition products; and
compensating for the one or more artifacts in the two or more decomposition products to generate modified decomposition products. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more machine-readable media, comprising:
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a routine configured to identify one or more artifacts in a physiological signal;
a routine configured to perform one or more multi-resolution decompositions on the physiological signal to generate two or more decomposition products; and
a routine configured to compensate for the one or more artifacts in the two or more decomposition products to generate modified decomposition products. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A physiological monitoring system, comprising:
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a sensor configured to generate a physiological signal; and
a monitor configured to receive an artifact-compensated signal derived from the physiological signal, wherein the artifact-compensated signal is generated by identifying one or more artifacts in the physiological signal, by performing one or more multi-resolution decompositions on the physiological signal to generate two or more decomposition products;
by compensating for the one or more artifacts in the two or more decomposition products to generate modified decomposition products, and by reconstructing the modified decomposition products to generate the artifact-compensated signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A physiological sensor, comprising:
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an emitter configured to emit light;
a detector configured to generate a signal in response to the emitted light; and
one or more processing components configured to process the signal to generate an artifact-compensated signal. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A cable, comprising:
one or more processing components configured to process an initial signal to generate an artifact-compensated signal. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An electronic device, comprising:
one or more processing components configured to receive a signal generated by a physiological sensor, to process the signal to generate an artifact-compensated signal, and to transmit the artifact-compensated signal to a monitor which is not configured to perform artifact compensation. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53)
Specification