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Using temporal-domain peak interval determination for video-based short-term heart rate measurement

Yu-Shan Wu, Gwo-Hwa Ju, Ting-Wei Lee, Heng-Sung Liu, Yen-Lin Chiu
2013 2013 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference  
Video-based Heart Rate Measurement has drawn a lot of attention in recent years.  ...  A few papers have been proposed in this work and most of them applied Fourier transform peak interval determination method for heart rate measurement.  ...  In this paper, the video-based heart rate measurement method is basically based on the method proposed in [2] .  ... 
doi:10.1109/apsipa.2013.6694163 dblp:conf/apsipa/WuJLLC13 fatcat:q3j3hdesnbbnjegjluvhekzrby

Non-contact Real-time Heart Rate Measurement Algorithm Based on PPG-standard Deviation

Jiancheng Zou, Tianshu Chen, Xin Yang
2019 Computers Materials & Continua  
Fourier transform respectively, measuring the heart rate.  ...  To overcome this problem, non-contact real-time heart rate measurement method is proposed in this paper based on pixel standard deviation.  ...  Non-Contact Real-Time Heart Rate Measurement Algorithm  ... 
doi:10.32604/cmc.2019.05793 fatcat:nusbqyoeinfwvfmhcsrp6eimfa

Noninvasive technique for measurement of heartbeat regularity in zebrafish (Danio rerio) embryos

Po Kwok Chan, Chun Chi Lin, Shuk Han Cheng
2009 BMC Biotechnology  
The heartbeat regularity, defined as the rhythmicity index, was determined by short-time Fourier Transform analysis.  ...  Using stereomicroscope and digital video camera, we have developed a simple, noninvasive method to measure the heart rate and heartbeat regularity in peripheral blood vessels.  ...  Short-time Fourier Transform (STFT) analysis was then applied to measure the heartbeat regularity.  ... 
doi:10.1186/1472-6750-9-11 pmid:19228382 pmcid:PMC2664803 fatcat:crbae6jtxrfk5jp2gp62heeqmm

Learning-based heart rate detection from remote photoplethysmography features

YungChien Hsu, Yen-Liang Lin, Winston Hsu
2014 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
Remote photoplethysmography (rPPG) enables measuring heart rate from recorded skin color variations with consumer cameras.  ...  Recent research has aimed to improve the signal strength of color variations caused by heart beat by using independent component analysis (ICA) technique or analyzing chrominance-based model.  ...  Fourier transform is the most used and standard form to transform signal from time domain to frequency domain. Three frequency domain features are used in the following steps.  ... 
doi:10.1109/icassp.2014.6854440 dblp:conf/icassp/HsuLH14 fatcat:y6mfql7ssrdtxe6qs3vjfbbhly

Contactless Video-Based Heart Rate Monitoring of a Resting and an Anesthetized Pig

Meiqing Wang, Ali Youssef, Mona Larsen, Jean-Loup Rault, Daniel Berckmans, Jeremy N. Marchant-Forde, Joerg Hartung, André Bleich, Mingzhou Lu, Tomas Norton
2021 Animals  
Then, a short-time Fourier transform (STFT) method was tested by evaluating different window sizes and window functions to accurately identify the HR.  ...  In summary, the developed algorithm based on video data has potential to be used for contactless HR measurement and may be applied on resting pigs for real-time monitoring of their health and welfare status  ...  Heart Rate Extraction The short-time Fourier transform (STFT) is a variant of the classic Fourier transform, where a window function is convolved with the original signal to only transform a short part  ... 
doi:10.3390/ani11020442 pmid:33567778 pmcid:PMC7916083 fatcat:lcdruf62nfcs3kxvxtugzcxeaa

Cardiovascular Performance Measurement in Water Fleas by Utilizing High-Speed Videography and ImageJ Software and Its Application for Pesticide Toxicity Assessment

Fiorency Santoso, Viacheslav V. Krylov, Agnes L. Castillo, Ferry Saputra, Hong-Ming Chen, Hong-Thih Lai, Chung-Der Hsiao
2020 Animals  
Moreover, by calculating the diameter of the heart, we succeeded in measuring other cardiovascular parameters.  ...  However, due to the nature of the heart and blood flow, and the speed of the heartbeat, it is difficult to perform precise heartbeat and blood flow measurements with a low level of bias.  ...  (E,F) Short-time Fourier transform (STFT) and (G,H) Poincaré plot of control and treated D. magna.  ... 
doi:10.3390/ani10091587 pmid:32899557 fatcat:pvrxymw64jhzjm5prt3oeuwefa

Extracting Heart Rate Variability: A Summary of Camera Based Photoplethysmograph

Rejwana Islam, Mousumi Sarmin, Farzana Akter Dulia, Moinul Islam Sayed
2020 European Journal of Electrical Engineering and Computer Science  
Image or video processing is the fundamental technique for measuring heart rate through smartphone.  ...  Many heart rate measurement methods using smartphone, webcam, commercial camera etc. have been proposed by many researchers.  ...  The Fast Fourier transformation is used to transform the green channel into the frequency spectrum.  ... 
doi:10.24018/ejece.2020.4.2.208 fatcat:ficaztolnfddxddtkfxpqdrygq

Cardiocyte Functional Data Analysis: A Novel Approach

Esteban Vazquez-Hidalgo, David Torres Barba, Paul Paolini
2012 Biophysical Journal  
Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ...  Parameters including steadystate force, short-range stiffness, short-range force and maximum power output were measured using these two protocols.  ...  Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ... 
doi:10.1016/j.bpj.2011.11.1927 fatcat:amzriscxxjdstnruxyqhgszni4

Using Rear Smartphone Cameras as Sensors for Measuring Heart Rate Variability

Genxuan Zhang, Sai Zhang, Yiming Dai, Bo Shi
2021 IEEE Access  
The measurement of heart rate variability (HRV) is the preferred method for assessing the function of the autonomic nervous system (ANS).  ...  INDEX TERMS Heart rate variability, photoplethysmography, smartphone, camera, video. 20460 This work is licensed under a Creative Commons Attribution 4.0 License.  ...  Many scholars have used smartphone cameras as sensors for studies on heart rate (HR) monitoring and HRV measurements using contact or noncontact video PPG (vPPG) technology [19] - [26] .  ... 
doi:10.1109/access.2021.3054065 fatcat:f77k3vkinnf77fv7sgrlb53dna

Transmural Heterogeneity and Depressed Function in the Mechanical Properties of Ventricular Tissue from Patients with End-Stage Heart Failure

Premi Shekar, Mihail I. Mitov, Leonardo F. Ferreira, Stuart G. Campbell, Shawn A. Stasko, Alexandria M. Jarrells, Benjamin A. Lawson, Michael B. Reid, Charles W. Hoopes, Mark R. Bonnell, Kenneth S. Campbell
2012 Biophysical Journal  
Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ...  Parameters including steadystate force, short-range stiffness, short-range force and maximum power output were measured using these two protocols.  ...  Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ... 
doi:10.1016/j.bpj.2011.11.1929 fatcat:c7ylclacnva45nq4m73ij3rble

Altered Cross-Bridge Relaxation Kinetics in Guinea Pig Cardiac Hypertrophy

Sukriti Dewan, Beth Mayer, David L. Geenen, Pieter P. de Tombe
2012 Biophysical Journal  
Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ...  Parameters including steadystate force, short-range stiffness, short-range force and maximum power output were measured using these two protocols.  ...  Single RV myocytes were isolated from extracted hearts and fast Fourier transform of their video image was used to compare resting sarcomere lengths (SL) of myocytes from MCT and saline injected control  ... 
doi:10.1016/j.bpj.2011.11.1928 fatcat:wi4jht67ovf3rohmocu2hg4svq

List Mode-Driven Cardiac and Respiratory Gating in PET

F. Buther, M. Dawood, L. Stegger, F. Wubbeling, M. Schafers, O. Schober, K. P. Schafers
2009 Journal of Nuclear Medicine  
This study evaluated different cardiac and respiratory gating methods: one based on ECG signals for cardiac gating and video signals for respiratory gating; 2 others based on measured inherent list mode  ...  (sensitivity method) or computing the axial center of mass and SD of the measured counting rates in the same frames (center-of-mass method).  ...  For measuring left ventricular wall thickness, the heart was realigned into short-axis images.  ... 
doi:10.2967/jnumed.108.059204 pmid:19372491 fatcat:j4eoxfndxrgnldq6earyzni34a

Video-based heart rate measurement from human faces

T. Pursche, J. Krajewski, Reinhard Moeller
2012 2012 IEEE International Conference on Consumer Electronics (ICCE)  
The paper describes a video-based heart rate detection system that enables contact-free determination of a person's physical behavior under relaxed and active conditions.  ...  The heart rate or heart rate variation is an important measure for phases of human activity or relaxation.  ...  Secondly, we calculate the Fourier transforms of the time signals to obtain the related power spectrum. We expected that the heart rate frequency corresponds to the highest power in the spectrum.  ... 
doi:10.1109/icce.2012.6161965 dblp:conf/iccel/PurscheKM12 fatcat:3ckvgiq7d5hsnks332735xphee

Fetal XCMR: a numerical phantom for fetal cardiovascular magnetic resonance imaging

Christopher W. Roy, Davide Marini, William Paul Segars, Mike Seed, Christopher K. Macgowan
2019 Journal of Cardiovascular Magnetic Resonance  
Consequently, fetal CMR development has been largely performed using physical phantoms or postnatal volunteers.  ...  Validating new techniques for fetal cardiovascular magnetic resonance (CMR) is challenging due to random fetal movement that precludes repeat measurements.  ...  XCMR images to radial k-space using the non-uniform fast Fourier transform.  ... 
doi:10.1186/s12968-019-0539-2 pmid:31118056 pmcid:PMC6532268 fatcat:vzdzuyr64ne3hlp4c4j6tezfee

Extracting physiological information in experimental biology via Eulerian video magnification

Henrik Lauridsen, Selina Gonzales, Daniela Hedwig, Kathryn L. Perrin, Catherine J. A. Williams, Peter H. Wrege, Mads F. Bertelsen, Michael Pedersen, Jonathan T. Butcher
2019 BMC Biology  
Videographic material of animals can contain inapparent signals, such as color changes or motion that hold information about physiological functions, such as heart and respiration rate, pulse wave velocity  ...  Eulerian video magnification allows the enhancement of such signals to enable their detection.  ...  Video was located on Flickr and used with permission from Ben Locke. b Heart, lung, and background signal (yellow and gray lines in a) development over time (blue channel). c Fourier-transformed blue channel  ... 
doi:10.1186/s12915-019-0716-7 pmid:31831016 pmcid:PMC6907275 fatcat:zhvui6k3q5eltishzrbr4ydese
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