Systems and methods for determining signal quality of a physiological signal using a wavelet transform and an identified noise floor
First Claim
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1. A method comprising:
- using a processor for;
receiving a physiological signal;
transforming the physiological signal based at least in part on a wavelet transform;
generating scalogram data based at least in part on the transformed signal;
identifying a band in the scalogram data;
identifying a characteristic of the band;
identifying a noise floor of the scalogram data; and
determining signal quality of the physiological signal based at least in part on the characteristic of the band and the noise floor.
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Abstract
A method and system are provided for evaluating in patient monitoring whether a signal is sensed optimally by receiving a signal, transforming the signal using a wavelet transform, generating a scalogram based at least in part on the transformed signal, identifying a pulse band in the scalogram, identifying a characteristic of the pulse band, determining, based on the characteristic of the pulse band, whether the signal is sensed optimally; and triggering an event. The characteristics of the pulse band and scalogram may be used to provide an indication of monitoring conditions.
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Citations
20 Claims
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1. A method comprising:
using a processor for; receiving a physiological signal; transforming the physiological signal based at least in part on a wavelet transform; generating scalogram data based at least in part on the transformed signal; identifying a band in the scalogram data; identifying a characteristic of the band; identifying a noise floor of the scalogram data; and determining signal quality of the physiological signal based at least in part on the characteristic of the band and the noise floor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a processor capable of; receiving a physiological signal; transforming the physiological signal based at least in part on a wavelet transform; generating scalogram data based at least in part on the transformed signal; identifying a band in the scalogram data; identifying a characteristic of the band; identifying a noise floor of the scalogram data; and determining signal quality of the physiological signal based at least in part on the characteristic of the band and the noise floor; and a display for displaying information based at least in part on the physiological signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification