非接触式心率检测方法的颜色空间选择  

Color Space Selection of Non-contact Heart Rate Measurement

作　　者：曹剑剑 冯军 汤文明 余瑛[1] 

机构地区：[1]江西中医药大学,南昌330004

出　　处：《计算机科学》2017年第B11期260-262,301,共4页Computer Science

基　　金：江西中医药大学校级课题(2014jzzdxk021;2014jzyb-3;2016jzgy-06)资助

摘　　要：采用非接触式方法进行人体心率检测,较传统接触式的测量方法更加便捷舒适。基于图像光学容积(iPPG)的非接触式心率测量方法,简要分析该方法的实现流程及颜色空间产生测量误差的机理,设计实验来对比不同颜色空间的测量误差,一方面证明了在非接触式心率测量过程中进行颜色空间选取的必要性,另一方面获得了可用以提高心率测量精度的最优颜色空间。实验结果表明,与同一时刻采用心电测量仪(ECG)得到的心率相比,采用RGB颜色空间进行心率测量的误差最小,实验的平均误差达到1.68bpm。因此,在非接触式心率测量中选择RGB颜色空间可以达到更高的精度。Compared with the traditional contact measurement method,the non-contact method for heart rate detection is more convenient and comfortable.Based on the non-contact heart rate measurement method of image-photoplethysmography (iPPG),this paper briefly analyzed the mechanism of this method and the measurement error of color space.The experiment compares the measurement error according to the different color space,which proves the necessity of selecting the color space during the non-contact heart rate measurement.On the other hand,optimal color space can be used to improve the accuracy of heart rate measurement accuracy of the color space.The experimental results show that the heart rate measurement with RGB color space has the smallest error compared with the heart rate obtained by electrocardiograph (ECG) at the same time.The average error of experiment is 1.68 bpm.Thus,choosing RGB color in non-contact heart rate measurement space can get higher accuracy.

关 键 词：颜色空间 非接触 心率 图像容积 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]