Pulse wave processing method, time domain feature extraction method, device, equipment and medium

Abstract

The invention belongs to the technical field of physiological signal processing, and discloses a pulse wave processing method, a time domain feature extraction method, a device, equipment and a medium. The pulse wave processing method is used for processing pulse waves and comprises the following steps that obtaining original pulse waves; segmenting the original pulse waves into a plurality of periodic waveforms; calculating a similarity distance between any two periodic waveforms, and rejecting abnormal fluctuation periodic waveforms in the plurality of periodic waveforms according to a calculation result; averaging the at least two reserved periodic waveforms to obtain a periodic average waveform; according to the method and the device, the abnormal fluctuation period waveform in the pulse wave can be eliminated, the interference of the abnormal fluctuation period waveform on subsequent analysis is avoided, and thus the accuracy of pulse wave analysis is improved.

Description

technical field [0001] The present application relates to the technical field of physiological signal processing, in particular, to a pulse wave processing method, time-domain feature extraction method, device, equipment and medium. Background technique [0002] Pulse diagnosis is a method of palpation by touching the pulse of different parts of the human body to observe the changes in pulse conditions. In traditional Chinese medicine, pulse diagnosis is a doctor who senses the pulse at the pulse opening of the patient's wrist through his fingers, and then diagnoses the disease based on experience. However, Due to the different experience of each doctor and the difference in the pulse of each person during the pulse diagnosis process, there is a problem of subjective judgment of pulse condition in traditional Chinese medicine pulse diagnosis. [0003] In the prior art, the pulse wave is acquired by various sensors, and then the pulse wave is processed to obtain and analyze t...

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Problems solved by technology

[0002] Pulse diagnosis is a method of palpation by touching the pulse of different parts of the human body to observe the changes in pulse conditions. In traditional Chinese medicine, pulse diagnosis is a doctor who senses the pulse at the pulse opening of the patient's wrist through his fingers, and then diagnoses the disease based on experience. However, Due to the different experience of each doctor and the difference in the pulse of each person during the pulse diagnosis process, there is a problem of subjective judgment of pulse condition in traditional Chinese medicine pulse diagnosis

[0003] In the prior art, the pulse wave is acquired by various sensors, and then the pulse wave is processed to obtain and analyze the characteristic information of the pulse wave that can reflect the physiology and pathology of the human body, so as to realize the objectification of pulse diagnosis and solve the problem of pulse diagnosis in traditional Chinese medicine. The subjective problem of pulse condition judgment, the existing way of processing the pulse wave mainly adopts the filtering method, the filtering method includes wavelet transform, high-pass / band-pass filter, etc., but the filtering method can only filter out the glitch interference in the pulse wave, so that Pulse wave smoothing does not remove abnormal periods in the pulse wave, such as figure 1 and figure 2 As shown, the abnormal cycle will interfere with the subsequent analysis, resulting in inaccurate analysis

[0004] For the above problems, there is no effective technical solution

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