Method and system for evaluating the quality of a physiological signal
AssigneeBiosency
InventorsGurvan PRIEM, Quentin BODINIER
Life of this patent
Estimating the term…
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.
Claims16
-12. (canceled)
A method for evaluating the quality of at least one periodic or quasi-periodic physiological signal, said method comprising:
- segmenting the physiological signal temporally into a plurality of signal segments, said signal segments having all the same temporal length selected to be higher than or equal to the predefined longest period of the physiological signal,
- 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.
A system for evaluating the quality of at least one periodic or quasi-periodic physiological signal, in particular a signal which is representative of a heart rate of a subject or modulated by a heart rate of a subject, said system comprising:
- an acquisition module configured to acquire the physiological signal,
- a processing module for evaluating the quality of the physiological signal configured to implement:
- segmenting the physiological signal temporally into a plurality of signal segments, said signal segments having all the same temporal length selected to be higher than or equal to the longest period of the physiological signal,
- 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,
- determining a quality index of the given signal segment according to the distance determined for the given signal segment.
Dependencies are inferred from the claim text.