基于经验模态分解和形态滤波的血压测量研究
|
摘要
为更彻底地对光电容积脉搏波进行去噪,准确地建立脉搏与血压的估算模型,提出结合经验模态分解和形态学滤波的算法对脉搏波进行滤波处理,利用Adaboost识别出两种不同的加速脉搏波,并采用不同的方法对两种加速脉搏波进行特征点提取以计算脉搏波传导时间,最终建立脉搏波传导时间和血压的估算模型。由实验可知,该方法对脉搏波去噪效果较佳,血压测量值与真值之间误差小于5 mmHg,优于AAMI标准(<8 mmHg),为血压连续测量以及便携式多生理参数设备的研究提供一定参考依据。
For denoising more thoroughly to the photoplethysmography and building computational model precisely between pulse and blood pressure,the filtering algorithm combined EMD and morphological filtering is proposed.Then Adaboost is adopted to distinguish two accelerated pulse wave,features points are extracted by different ways to calculate transit time of pulse wave,the computational model is built finally.The experiment shows that denoising effect is excellent,the error between measured values and truth values is within 5 mmHg,it is better than AAMI standard(<8 mmHg),providing reference to the research of blood pressure continuous measurement and multiple physiological parameter equipment.
For denoising more thoroughly to the photoplethysmography and building computational model precisely between pulse and blood pressure,the filtering algorithm combined EMD and morphological filtering is proposed.Then Adaboost is adopted to distinguish two accelerated pulse wave,features points are extracted by different ways to calculate transit time of pulse wave,the computational model is built finally.The experiment shows that denoising effect is excellent,the error between measured values and truth values is within 5 mmHg,it is better than AAMI standard(<8 mmHg),providing reference to the research of blood pressure continuous measurement and multiple physiological parameter equipment.
引文
[1]鲍俊成,王邦辉.基于STM32的电子血压计的设计与实现[J].医疗卫生装备,2015,36(6):21-24.BAO J C,WANG B H.Design and implementation of electronic sphygmomanometer based on STM32[J].Chinese Medical Equipment Journal,2015,36(6):21-24.
[2]吴育东,钟舜聪,伏喜斌.基于光电容积脉搏波的血压测量实验研究[J].机电工程,2017,34(8):865-869. WU Y D,ZHONG S C,FU X B.Blood pressure measurement based on photoelectric volume pulse wave[J].Mechanical & Electrical Engineering Magazine,2017,34(8):865-869.
[3]徐洁,付强.基于小波分析的脉搏波信号去噪[J].计算机仿真,2012,29(9):235-238. XU J,FU Q.Denoising of pulse wave signal based on wavelet analysis[J].Computer Simulation,2012,29(9):35-238.
[4]郭晨城,文玉梅,李平,等.采用EMD的管道泄漏声信号增强[J].仪器仪表学报,2015,36(6):1397-1405. GUO C C,WEN Y M,LI P,et al.Enhancement of leak signals using EMD in pipeline[J].Chinese Journal of Scientific Instrument,2015,36(6):1397-1405.
[5]汤健,柴天佑,丛秋梅,等.基于EMD和选择性集成学习算法的磨机负荷参数软测量[J].自动化学报,2014,40(9):1853-1866. TANG J,CHAI T Y,CONG Q M,et al.Soft sensor approach for modeling mill load parameters based on EMD and selective ensemble learning algorithm[J].Acta Automatica Sinica,2014,40(9):1853-1866.
[6]刘彦伟,朱健铭,梁永波,等.经验模态分解和小波变换的连续血压测量[J].计算机仿真,2015,32(11):333-337. LIU Y W ,ZHU J M ,LIANG Y B,et al.A continuous blood pressure measurement based on empirical mode decomposition and wavelet transform[J].Computer Simulation,2015,32(11):333-337.
[7]崔丽辉,赵安兴,宁方正.基于EMD和BP神经网络的雷达体征信号检测算法[J].计算机系统应用,2017(8):217-222. CUI L H,ZHAO A X,NING F Z.Radar vital sign detection method based on the EMD and BP algorithm[J].Computer Systems & Applications,2017(8):217-222.
[8]甘永进,甘国妹,蒋曲博,等.基于AFE4490的反射式脉搏血氧检测系统[J].电子技术应用,2017,43(8):92-94. GAN Y J,GAN G M,JIANG Q B,et al.Detection system of pulse blood oxygen saturation based on AFE4490[J].Application of Electronic Technique,2017,43(8):92-94.
[9]刘艳丽,赵为松,李海坤,等.基于形态滤波的脉搏波信号基线漂移消除方法研究[J].合肥工业大学学报(自然科学版),2011,34(4):525-528. LIU Y L,ZHAO W S,LI H K,et al.Research on removing baseline wandering of pulse wave signal based on morphological filter[J].Journal of Hefei University of Technology(Natural Science),2011,34(4):525-528.
[10]张笑东,蒲宝明,霍红,等.均值滤波和形态学在振荡脉搏波提取中应用[J].计算机系统应用,2016,25(2):157-161. ZHANG X D,PU B M,HUO H,et al.Application of average filter and morphology in oscillation pulse wave extraction[J].Computer Systems & Applications,2016,25(2):157-161.
[11]孙薇,唐宁,江贵平.脉搏波信号特征点识别与预处理方法研究[J].生物医学工程学杂志,2015,32(1):197-201. SUN W,TANG N,JIANG G P.Study of characteristic point identification and preprocessing method for pulse wave signals[J].Journal of Biomedical Engineering,2015,32(1):197-201.
[12]李丹,王慧倩,柏桐,等.基于双树复小波变换和形态学的脉搏信号去噪[J].电信科学,2016,32(12):93-98. LI D,WANG H Q,BAI T,et al.De-noising method of pulse signal based on double-tree complex wavelet transform and morphological filtering[J].Telecommunications Science,2016,32(12):93-98.
[13]赵谞博,赫英迪,李信政,等.基于支持向量回归的人体血压预测方法[J].燕山大学学报,2017,41(5):438-443. ZHAO X B,HE Y D,LI X Z,et al.Predicting method for human blood pressure based on SVR algorithm[J].Journal of Yanshan University,2017,41(5):438-443.
[2]吴育东,钟舜聪,伏喜斌.基于光电容积脉搏波的血压测量实验研究[J].机电工程,2017,34(8):865-869. WU Y D,ZHONG S C,FU X B.Blood pressure measurement based on photoelectric volume pulse wave[J].Mechanical & Electrical Engineering Magazine,2017,34(8):865-869.
[3]徐洁,付强.基于小波分析的脉搏波信号去噪[J].计算机仿真,2012,29(9):235-238. XU J,FU Q.Denoising of pulse wave signal based on wavelet analysis[J].Computer Simulation,2012,29(9):35-238.
[4]郭晨城,文玉梅,李平,等.采用EMD的管道泄漏声信号增强[J].仪器仪表学报,2015,36(6):1397-1405. GUO C C,WEN Y M,LI P,et al.Enhancement of leak signals using EMD in pipeline[J].Chinese Journal of Scientific Instrument,2015,36(6):1397-1405.
[5]汤健,柴天佑,丛秋梅,等.基于EMD和选择性集成学习算法的磨机负荷参数软测量[J].自动化学报,2014,40(9):1853-1866. TANG J,CHAI T Y,CONG Q M,et al.Soft sensor approach for modeling mill load parameters based on EMD and selective ensemble learning algorithm[J].Acta Automatica Sinica,2014,40(9):1853-1866.
[6]刘彦伟,朱健铭,梁永波,等.经验模态分解和小波变换的连续血压测量[J].计算机仿真,2015,32(11):333-337. LIU Y W ,ZHU J M ,LIANG Y B,et al.A continuous blood pressure measurement based on empirical mode decomposition and wavelet transform[J].Computer Simulation,2015,32(11):333-337.
[7]崔丽辉,赵安兴,宁方正.基于EMD和BP神经网络的雷达体征信号检测算法[J].计算机系统应用,2017(8):217-222. CUI L H,ZHAO A X,NING F Z.Radar vital sign detection method based on the EMD and BP algorithm[J].Computer Systems & Applications,2017(8):217-222.
[8]甘永进,甘国妹,蒋曲博,等.基于AFE4490的反射式脉搏血氧检测系统[J].电子技术应用,2017,43(8):92-94. GAN Y J,GAN G M,JIANG Q B,et al.Detection system of pulse blood oxygen saturation based on AFE4490[J].Application of Electronic Technique,2017,43(8):92-94.
[9]刘艳丽,赵为松,李海坤,等.基于形态滤波的脉搏波信号基线漂移消除方法研究[J].合肥工业大学学报(自然科学版),2011,34(4):525-528. LIU Y L,ZHAO W S,LI H K,et al.Research on removing baseline wandering of pulse wave signal based on morphological filter[J].Journal of Hefei University of Technology(Natural Science),2011,34(4):525-528.
[10]张笑东,蒲宝明,霍红,等.均值滤波和形态学在振荡脉搏波提取中应用[J].计算机系统应用,2016,25(2):157-161. ZHANG X D,PU B M,HUO H,et al.Application of average filter and morphology in oscillation pulse wave extraction[J].Computer Systems & Applications,2016,25(2):157-161.
[11]孙薇,唐宁,江贵平.脉搏波信号特征点识别与预处理方法研究[J].生物医学工程学杂志,2015,32(1):197-201. SUN W,TANG N,JIANG G P.Study of characteristic point identification and preprocessing method for pulse wave signals[J].Journal of Biomedical Engineering,2015,32(1):197-201.
[12]李丹,王慧倩,柏桐,等.基于双树复小波变换和形态学的脉搏信号去噪[J].电信科学,2016,32(12):93-98. LI D,WANG H Q,BAI T,et al.De-noising method of pulse signal based on double-tree complex wavelet transform and morphological filtering[J].Telecommunications Science,2016,32(12):93-98.
[13]赵谞博,赫英迪,李信政,等.基于支持向量回归的人体血压预测方法[J].燕山大学学报,2017,41(5):438-443. ZHAO X B,HE Y D,LI X Z,et al.Predicting method for human blood pressure based on SVR algorithm[J].Journal of Yanshan University,2017,41(5):438-443.