Pain assessment method combining heart rate variation features and facial expression features

A heart rate variability and facial expression technology, applied in the field of intelligent medical care, can solve problems such as inaccurate judgment, and achieve the effect of improving accuracy and robustness

Inactive Publication Date: 2019-10-18
嘉兴深拓科技有限公司
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a pain assessment method that combines heart rate variability features and facial expression features to solve the inaccurate judgment problem in the prior art caused by judging the pain level of a patient based only on facial expression features , to eliminat

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  • Pain assessment method combining heart rate variation features and facial expression features

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[0044] For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are descriptions of exemplary embodiments of the application only, and are not intended to limit the scope of the application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0045] It should also be understood that the terms "comprising", "including", "having", "comprising", "comprising", when used in this specification, mean that there are described features, integers, steps, operations, elements and / or or components, but does not exclude the presence or addition of one or more other features, integers, steps, steps, operations, elements, components and / or combinations thereof. Furthermore, expressions such as "...at least one", when preceding a list of listed features, modify the entire listed feature r...

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Abstract

The invention provides a pain assessment method combining heart rate variation features and facial expression features. According to the invention, the expression feature information and the heart rate variation feature information are merged into a pain fusion feature set, and input into a SVR regression classifier for training and learning, a facial expression image sequence and the heart rate data of a patient to-be-evaluated are collected to generate a pain fusion feature set to-be-tested, and sent to a trained SVR classifier for regression prediction to complete the assessment of pain level. The pain assessment method of the fusion heart rate variation feature and the facial expression feature of the present invention can not only quickly and accurately evaluate the pain level, but also eliminates interference of light, the facial features, the physiological response characteristics, the pain tolerance and other factors on pain expression recognition, and improves the accuracy androbustness of pain assessment.

Description

technical field [0001] The present invention relates to the field of intelligent medical technology, and more specifically relates to a pain assessment method that integrates heart rate variation features and facial expression features. Background technique [0002] Pain is often expressed as an unpleasant emotion with potential tissue damage. In 2001, the World Health Organization (WHO) officially recognized pain as a human disease, the "fifth vital sign" after the four vital signs of breathing, pulse, body temperature and blood pressure, and pain relief as a a basic human right. With the development of society, the continuous improvement of medical level and the increasing demand of patients for pain treatment, pain treatment has been paid more and more attention by the medical and health departments. Many hospitals have set up special pain departments or pain centers to provide all-round Carry out the medical treatment, scientific research and teaching work related to p...

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Application Information

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IPC IPC(8): A61B5/024A61B5/00
CPCA61B5/02405A61B5/0059A61B5/7264
Inventor 王骏浦剑金博修宇
Owner 嘉兴深拓科技有限公司
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