A fourth derivative based tool for pulse signal special point identification

Zhiqiang Pan; Changlong Tao; Qingfeng Tang

doi:10.1117/12.2623173

16 February 2022 A fourth derivative based tool for pulse signal special point identification

Zhiqiang Pan, Changlong Tao, Qingfeng Tang

Proceedings Volume 12083, Thirteenth International Conference on Graphics and Image Processing (ICGIP 2021); 120832R (2022) https://doi.org/10.1117/12.2623173
Event: Thirteenth International Conference on Graphics and Image Processing (ICGIP 2021), 2021, Kunming, China

Abstract

The special points of the pulse signal, especially the position of the second peak tidal wave, are sometimes not easy to identify. For this reason, this paper designs and develops a tool for identifying the special points of the pulse signal based on the fourth derivative. We use MATLAB to develop a gadget to calculate higher derivatives of each pulse signal. In this process, the S-G filter is taken to smooth the pulse signal and its derivative. With the gadget, we can manually adjust the S-G filter parameters to get the final results. The positions of the first three peaks of each cycle of the fourth derivative are used as estimates of the locations of the special points of the original pulse signal. We use artificial method and the developed tool to find the special points of pulse signal respectively, and compare the difference of the two methods by analysis of variance (ANOVA). The experimental results show that there is no significant difference between the two methods (P<0.05). The tool developed in this paper is able to accurately locate the special points of the pulse signal, which provides support for extracting time domain characteristics of the pulse signal.

Citation Download Citation

Zhiqiang Pan, Changlong Tao, and Qingfeng Tang "A fourth derivative based tool for pulse signal special point identification", Proc. SPIE 12083, Thirteenth International Conference on Graphics and Image Processing (ICGIP 2021), 120832R (16 February 2022); https://doi.org/10.1117/12.2623173

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available