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US 12,343,175 B2Granted
Method and system for evaluating the quality of a physiological signal
AssigneeBiosency
InventorsGurvan Priem, Quentin Bodinier
Life of this patent
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Abstract
A method, intended for the evaluation of the quality of at least one periodic or quasi-periodic physiological signal, which includes the steps of: segmenting the physiological signal temporally into a plurality of signal segments; for each given signal segment, determining a distance representative of a shape difference between the given signal segment and at least one signal segment temporally offset relative to the given signal segment; and determining a quality index of the given signal segment according to the distance determined for the given signal segment.
Claims15
A method comprising:
- segmenting a physiological signal temporally into a plurality of signal segments, each signal segment having an identical temporal length selected to be higher than or equal to a predefined longest period of the physiological signal;
- for each signal segment, continuously determining a distance representative of a shape difference between each signal segment and at least one signal segment temporally offset relative to each signal segment;
- determining a quality index of each signal segment according to the distance determined for each signal segment;
- and
- comparing the quality index of each signal segment to a threshold based upon quality criteria;
- and
- excluding each signal segment having a quality index less than the threshold.
4 more elements
A system comprising:
- an acquisition module configured to acquire a physiological signal,
- a processing module configured to:
- segment the physiological signal temporally into a plurality of signal segments, each signal segment having an identical temporal length selected to be higher than or equal to a longest period of the physiological signal,
- for each signal segment, determine continuously a distance representative of a shape difference between each signal segment and at least one signal segment temporally offset relative to each signal segment,
- determine a quality index of each signal segment according to the distance determined for each signal segment
- compare the quality index of each segment to a threshold based upon quality criteria;
- and
- exclude each segment having a quality index less than the threshold.
5 more elements
Dependencies are inferred from the claim text.