Processing and detecting baseline changes in signals
First Claim
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1. A method of detecting the occurrence of events from a signal, comprising:
- receiving the signal;
transforming, using a processor, the signal to generate a transformed signal;
generating, using the processor, a scalogram based at least in part on the transformed signal;
detecting an artifact within the scalogram, wherein the artifact is a high-energy broad-scale cone shaped region of the scalogram;
calculating characteristics of the detected artifact; and
analyzing, using the processor, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event.
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Abstract
According to embodiments, systems and methods for detecting the occurrence of events from a signal are provided. A signal processing system may analyze baseline changes and changes in signal characteristics to detect events from a signal. The system may also detect events by analyzing energy parameters and artifacts in a scalogram of the signal. Further, the system may detect events by analyzing both the signal and its corresponding scalogram.
263 Citations
22 Claims
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1. A method of detecting the occurrence of events from a signal, comprising:
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receiving the signal; transforming, using a processor, the signal to generate a transformed signal; generating, using the processor, a scalogram based at least in part on the transformed signal; detecting an artifact within the scalogram, wherein the artifact is a high-energy broad-scale cone shaped region of the scalogram; calculating characteristics of the detected artifact; and analyzing, using the processor, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for detecting the occurrence of events from a signal, comprising:
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a signal generator capable of generating the signal; and a processor capable of; transforming the signal to generate a transformed signal; generating a scalogram based at least in part on the transformed signal; detecting an artifact within the scalogram, wherein the artifact is a high-energy broad-scale cone shaped region of the scalogram; calculating characteristics of the detected artifact; and analyzing, using the processor, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A non-transitory computer-readable medium for use in detecting the occurrence of events from a signal, the computer-readable medium having computer program instructions recorded thereon for:
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receiving the signal; transforming the signal to generate a transformed signal; generating a scalogram based at least in part on the transformed signal; detecting an artifact within the scalogram, wherein the artifact is a high-energy broad-scale cone shaped region of the scalogram; calculating characteristics of the detected artifact; and analyzing, using the processor, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event.
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Specification