Wrist-located pulse detection using IR signals, activity and nonlinear artifact cancellation

Renevey, Philippe; Vetter, Rolf; Krauß, J.; Celka, P.; Depeursinge, Y.

doi:10.1109/iembs.2001.1017437

Cited by 45 publications

(27 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To facilitate long-term recordings and to increase the comfort of subjects, a great effort has been made to develop wearable PPG systems [24]–[32], [43]–[51]. Attempts have also been made for noncontact PPG techniques to overcome the drawback of contact with the skin [52]–[55].…”

Section: Wearable and Noncontact Ppgmentioning

confidence: 99%

Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging

Sun

Thakor

2016

IEEE Trans. Biomed. Eng.

461

238

View full text Add to dashboard Cite

Photoplethysmography (PPG) is a non-invasive optical technique for detecting microvascular blood volume changes in tissues. Its ease of use, low cost and convenience make it an attractive area of research in the biomedical and clinical communities. Nevertheless, its single spot monitoring and the need to apply a PPG sensor directly to the skin limit its practicality in situations such as perfusion mapping and healing assessments or when free movement is required. The introduction of fast digital cameras into clinical imaging monitoring and diagnosis systems, the desire to reduce the physical restrictions, and the possible new insights that might come from perfusion imaging and mapping inspired the evolution of conventional PPG technology to imaging PPG (IPPG). IPPG is a noncontact method that can detect heart-generated pulse waves by means of peripheral blood perfusion measurements. Since its inception, IPPG has attracted significant public interest and provided opportunities to improve personal healthcare. This study presents an overview of the wide range of IPPG systems currently being introduced along with examples of their application in various physiological assessments. We believe that the widespread acceptance of IPPG is happening, and it will dramatically accelerate the promotion of this healthcare model in the near future.

show abstract

Section: Wearable and Noncontact Ppgmentioning

confidence: 99%

Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging

Sun

Thakor

2016

IEEE Trans. Biomed. Eng.

461

238

View full text Add to dashboard Cite

show abstract

“…Several methods have been proposed to reduce the influence of motion artifacts on a PPG signal [2]. Recently, some studies have addressed that model based techniques showed good performance in optical measurements as compared with other techniques [3]. In this paper, the NLMS (Normalized Lease Mean Squares) method shown in Figure 3 is chosen for real-time processing and computability on mobile CPU.…”

Section: A Practical Implementationmentioning

confidence: 99%

A Novel Headset with a Transmissive PPG Sensor for Heart Rate Measurement

et al. 2009

View full text Add to dashboard Cite

-In this paper, a headset with an ear-clip type, transmissive PPG (Photo-plethysmography) sensor is presented which allows a continuous and real-time monitoring of the heart rate (HR) whilst listening to music during daily activities. Also, the proposed headset is equipped with a tri-axial accelerometer, which enables the measurement of calorie consumption and step counting. During a variety of daily activities (e.g., walking, jogging, and sleeping etc.), a PPG may be contaminated with motion artifacts. To remove these motion artifacts, we designed an adaptive filter based on the accelerometer.To evaluate the accuracy of heart rate detection, for 13 subjects the HR from the headset was compared with that detected from the ECG simultaneously recorded with a conventional ECG recorder. As a result, the error rates of the headset are 0.6%, 1.7%, 0.7%, and 5.7% over rest, walking (3km/h), jogging (6 km/h), and running (9km/h), respectively.From these results, it is likely that the proposed headset shows the performance good enough to be used in the continuous and real-time monitoring of the HR during daily activities. It is expected that the proposed headset is very efficient in the assessment of autonomic nervous activities under various physiological conditions, the exercise monitoring, and the evaluation of physical training performance.

show abstract

“…The reflective PPG method measures changes in blood flow in subcutaneously distributed capillaries by injecting light from a light source into the skin and measuring the intensity of returning light by a receiver after absorption and diffusion by blood flow and skin tissue several mm under the skin (Renevey, 2001).…”

Section: Photoplethysmographymentioning

confidence: 99%

“…On the other hand, wristband-type PPG sensors suffer from a superimposing of pseudo pulse signals (motion artifacts) caused by user motion, which makes accurate calculation of heart rate difficult (Tamura, 2014). Consequently, to accurately calculate pulse rate from pulse signals superimposed with motion artifacts, various types of motion artifact reduction methods have been proposed to improve accuracy of HRV from PPG raw data (Renevey, 2001); (Asada, 2004), and there have been many studies targeting periodic motion artifacts caused by intense arm motion while walking or running. So far many studies have reported evaluation average pulse rate using average heart rate by ECG as reference.…”

Section: Introductionmentioning

confidence: 99%

Wearable Motion Tolerant PPG Sensor for Instant Heart Rate in Daily Activity

Ishikawa

Hyodo

Miyashita³

et al. 2017

Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies

View full text Add to dashboard Cite

A wristband-type PPG heart rate sensor capable of overcoming motion artifacts in daily activity and detecting heart rate variability has been developed together with a motion artifact cancellation framework. In this work, a motion artifact model in daily life was derived and motion artifacts caused by activity of arm, finger, and wrist were cancelled significantly. Highly reliable instant heart rate detection with high noiseresistance was achieved from noise-reduced pulse signals based on peak-detection and autocorrelation methods. The wristband-type PPG heart rate sensor with our motion artifact cancellation framework was compared with ECG instant heart rate measurement in both laboratory and office environments. In a laboratory environment, mean reliability (percentage of time within 10% error relative to ECG instant heart rate) was 86.5% and the one-day pulse-accuracy achievement rate based on time use data of body motions in daily life was 88.1% or approximately 21 hours. Our device and motion artifact cancellation framework enable continuous heart rate variability monitoring in daily life and could be applied to heart rate variability analysis and emotion recognition.

show abstract

Wrist-located pulse detection using IR signals, activity and nonlinear artifact cancellation

Cited by 45 publications

References 9 publications

Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging

Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging

A Novel Headset with a Transmissive PPG Sensor for Heart Rate Measurement

Wearable Motion Tolerant PPG Sensor for Instant Heart Rate in Daily Activity

Contact Info

Product

Resources

About