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US 2026/0294269 A1Published application
Estimating respiration rate using a dimensionality reduction algorithm
AssigneeKoninklijke Philips N.V.
InventorCHRISTOPH FLORIAN FRANCK
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AssigneeKoninklijke Philips N.V.
InventorCHRISTOPH FLORIAN FRANCK
Estimating the term…
Proposed concepts thus aim to provide methods and systems pertaining to estimating respiration rate of a subject. This can be achieved by processing a plurality of input signals indicative of detected thorax movement of a subject detected at different non-overlapping time periods with a dimensionality reduction algorithm. Proposed concepts thus aim to process multiple different input signals, each indicative of detected thorax movement of the subject detected at different non-overlapping time periods, with a dimensionality reduction algorithm, thereby generating multiple output channels, wherein each output channels represents a respective component of the plurality of input signals. For example, it is likely that one of the output channels comprises a component corresponding to the respiration rate of the subject, and the remaining output channels contain noise or other irrelevant components such as interference artefacts.
A method (100) for estimating respiration rate of a subject, the method comprising:
The method of any prior claim, wherein obtaining the plurality of input signals (110) comprises using at least one pair of electrodes to apply at least one excitation signal frequency to the subject.
The method of any prior claim, wherein the plurality of input signals (110) represents thorax movement of the subject detected simultaneously.
The method of any prior claim, wherein obtaining the plurality of input signals (110) comprises using at least one pair of electrodes to simultaneously apply at least two different excitation signal frequencies to the subject (310, 320), and to detect thoracic impedance signals for each of the different excitation signal frequencies respectively.
The method of any prior claim, wherein the dimensionality reduction algorithm comprises at least one of a principal component analysis algorithm and an independent component analysis algorithm.
The method of any prior claim, wherein estimating a respiration rate (130) of the subject based on at least one of the plurality of output channels comprises:
The method of any prior claim, wherein obtaining the plurality of input signals (110) comprises using at least one of:
A system (500) for estimating respiration rate of a subject, the system comprising:
Dependencies are inferred from the claim text.