Non-contact respiratory rate detection method and system based on edge optical flow information

An optical flow information and non-contact technology, applied in the field of respiration rate detection, can solve the problems of insufficient robustness and accurate extraction of respiration data, and achieve ultra-low power consumption, operability and practicability strong effect

Pending Publication Date: 2022-03-11
SHANDONG UNIV +1
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Problems solved by technology

In addition, in terms of signal extraction, a single pixel averaging operation can no longer satisfy the accurate extraction of respiration data, how to improve the effective respiration data becomes the key to the accuracy of respiration estimation in the later stage; finally, sleep detection, background noise, camera shake and other complex scenarios The detection of respiration rate, the existing method can not have enough robustness

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  • Non-contact respiratory rate detection method and system based on edge optical flow information
  • Non-contact respiratory rate detection method and system based on edge optical flow information
  • Non-contact respiratory rate detection method and system based on edge optical flow information

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[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039]It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0040] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0041] Aim...

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Abstract

The invention provides a non-contact respiratory rate detection method and system based on edge optical flow information, and the method comprises the steps: obtaining the edge information of each region in an image through an edge algorithm and an algebraic mask method, and carrying out the sparse optical flow coding of the information; the image is changed into a binary image, unnecessary color interference in the image is removed, and a region of interest is determined through line and mask trajectory tracking; invalid areas are cut off in a background image difference mode, thoracico-abdominal respiration areas of interest are obtained, and then the respiration rate of the human body is judged.

Description

technical field [0001] The invention belongs to the technical field of respiration rate detection, and in particular relates to a non-contact respiration rate detection method and system based on marginal optical flow information. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Respiration is the most basic physiological activity for the human body to exchange gas with the outside world to ensure normal body functions. Through respiration, it can directly reflect the metabolic vitality and cardiopulmonary function status of the human body. Respiratory frequency is the main parameter of respiratory physiology, one of the sensitive indicators of respiratory diseases, and also an important indicator of acute functional respiratory disorders. Regular detection of respiratory rate can detect and prevent respiratory system and cardiovascular a...

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Application Information

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IPC IPC(8): G06T7/00G06T7/12G06T7/13G06T7/136G06T7/194G06T7/215G06T7/246G06T7/254G06T7/269G06T5/00
CPCG06T7/0012G06T7/12G06T7/13G06T7/136G06T7/194G06T7/215G06T7/246G06T7/269G06T7/254G06T2207/10016G06T2207/20224G06T2207/20104G06T5/73G06T5/70
Inventor 李可赵芮胡咏梅陈玉国徐峰王甲莉潘畅庞佼佼边圆李贻斌蒋丽军徐凤阳
Owner SHANDONG UNIV
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