基于红外热成像的在体呼吸监测方法  

In vivo respiration monitoring based on infrared thermal imaging

作　　者：李晨曦[1,2] 司芳芳 刘柏男 闫苾萱 刘蓉[1,2] 陈文亮[1,2] 高峰[1,2] LI Chen-Xi;SI Fang-Fang;LIU Bo-Nan;YAN Bi-Xuan;LIU Rong;CHEN Wen-Liang;GAO Feng(State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;School of Precision Instrument and Optic Electronic Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072 [2]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《红外与毫米波学报》2020年第6期796-801,共6页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(81871396,81971657,81671727,81401454,81471698);天津市自然科学基金(19JCYBJC29100);天津市企业科技特派员项目(19JCTPJC42200)。

摘　　要：人体红外辐射及温度特性与呼吸等生理活动密切相关。针对远程监测需要,提出了一种基于面部红外图像分析的在体呼吸监测方法。为了提高红外热成像中鼻孔区域识别及跟踪精度,研究了基于Harris角点法的提取方法,及基于光流场方法的特征跟踪识别方法;分析对比了不同环境中在体呼吸信号时频特征及统计参数。实验结果表明,本文提出的方法可以准确监测在体呼吸信号,分析呼吸模式变化,为红外热成像方法在临床医学的应用提供了参考。The body infrared radiation characteristics are related to physiological activities such as respiration.We developed a novel approach to remotely monitor respiration by using the time-series infrared thermography of face.To improve the accuracy and robustness,the algorithm is researched based on Harris corner detection and optical flow field tracking method,which enhances the accuracy of the nostril region tracking.We demonstrate the approach by monitoring the respiratory of human in different environment and evaluating its time-frequency characteristics and statistical parameters.The results show that the approach can reliably monitor the real-time respiration and its pattern.That would be helpful for the clinical application of the infrared thermography on monitoring physiological status.

关 键 词：红外热成像 呼吸监测 图像处理 红外医学 

分 类 号：TN219[电子电信—物理电子学]