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Systems and methods for ridge selection in scalograms of signals
专利权人:
Nellcor Puritan Bennett Ireland
发明人:
Watson, James Nicholas,Addison, Paul Stanley,Clifton, David
申请号:
AU2009265269
公开号:
AU2009265269B2
申请日:
2009.06.29
申请国别(地区):
AU
年份:
2013
代理人:
摘要:
According to embodiments, systems, devices, and methods for ridge selection in scalograms are disclosed. Ridges or ridge components are features within a scalogram which may be computed from a signal such as a physiological (e.g., photoplethysmographic) signal. Ridges may be identified from one or more scalograms of the signal. Parameters characterizing these ridges may be determined.. Based at least in part on these parameters, a ridge density distribution function is determined. A ridge is selected from analyzing this ridge density distribution function. In some embodiments, the selected ridge is used to determine a physiological parameter such as respiration rate.
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