Comparison of Active Electrode Materials for Non-Contact ECG Measurement

Peng, Sijia; Xu, Ke; Chen, Wei

doi:10.3390/s19163585

Cited by 34 publications

(20 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, discriminating between compulsive and spontaneous ECG is quite challenging so users may be forced to enter their ECG tokens in particular situations. Additionally, with the development of noncontact ECG measurement [32], an ECG biometric template is relatively easier to steal compared with HD-sEMG. The noncancelability and cross-application discrepancy are also two flaws of ECG biometrics.…”

Section: ) Comparison With Gaitmentioning

confidence: 99%

Cancelable HD-sEMG-Based Biometrics for Cross-Application Discrepant Personal Identification

Jiang

Liu

et al. 2021

IEEE J. Biomed. Health Inform.

Self Cite

View full text Add to dashboard Cite

With the soaring development of body sensor network (BSN)-based health informatics, information security in such medical devices has attracted increasing attention in recent years. Employing the biosignals acquired directly by the BSN as biometrics for personal identification is an effective approach. Noncancelability and cross-application invariance are two natural flaws of most traditional biometric modalities. Once the biometric template is exposed, it is compromised forever. Even worse, because the same biometrics may be employed as tokens for different accounts in multiple applications, the exposed template can be used to compromise other accounts. In this work, we propose a cancelable and cross-application discrepant biometric approach based on high-density surface electromyogram (HD-sEMG) for personal identification. We enrolled two accounts for each user. HD-sEMG signals from the right dorsal hand under isometric contractions of different finger muscles were employed as biometrics tokens. Since isometric contraction, in contrast to dynamic contraction, requires no actual movement, the users' choice to login to different accounts is greatly protected against impostors. We realized a promising identification accuracy of 85.76% for 44 identities (22 subjects × 2 accounts) with training and testing data acquired 9 days apart. The high identification accuracy of different accounts for the same user demonstrates the promising cancelability and cross-application discrepancy of the proposed HD-sEMG-based biometrics. To the best of our knowledge, this is the first study to employ HD-sEMG in personal identification applications.

show abstract

Section: ) Comparison With Gaitmentioning

confidence: 99%

Cancelable HD-sEMG-Based Biometrics for Cross-Application Discrepant Personal Identification

Jiang

Liu

et al. 2021

IEEE J. Biomed. Health Inform.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The technology of non-contact ECG measurement, termed capacitive coupled ECG (cECG), has been studied since the mid-1990s. When measuring ECG through clothes, the electrode is separated from the skin, leading to an extremely large skin-electrode impedance, which further results in the high susceptibility of the measured signal to diverse interferences [ 116 ]. Designing a buffer with high input impedance close to the electrode makes it possible to measure ECG through clothes, with the option of an right leg drive (RLD) electrode to feed the common mode signal back to the body.…”

Section: Unobtrusive Monitoring Technologymentioning

confidence: 99%

“…Designing a buffer with high input impedance close to the electrode makes it possible to measure ECG through clothes, with the option of an right leg drive (RLD) electrode to feed the common mode signal back to the body. In previous studies, cECG systems have already been embedded into various objects in daily life scenarios, such as beds [ 117 ], [ 118 ], chairs [ 116 ], driver’s seats [ 119 ], toilet seats [ 120 ] and bathtubs [ 121 ]. The electrode materials used in these systems include conductive fabric, copper foil tape, and flexible printed circuit [ 116 ].…”

Section: Unobtrusive Monitoring Technologymentioning

confidence: 99%

“…In previous studies, cECG systems have already been embedded into various objects in daily life scenarios, such as beds [ 117 ], [ 118 ], chairs [ 116 ], driver’s seats [ 119 ], toilet seats [ 120 ] and bathtubs [ 121 ]. The electrode materials used in these systems include conductive fabric, copper foil tape, and flexible printed circuit [ 116 ]. Together, these studies indicate that cardiorespiratory signals may be effectively measured in a range of everyday domestic settings, thereby allowing the ongoing monitoring of various chronic health conditions.…”

Section: Unobtrusive Monitoring Technologymentioning

confidence: 99%

See 1 more Smart Citation

A review of wearable and unobtrusive sensing technologies for chronic disease management

Guo

Liu

Peng

et al. 2021

Computers in Biology and Medicine

Self Cite

View full text Add to dashboard Cite

“…The work by Babusiak et al [ 4 ] pointed out the different transfer properties of active electrodes using electrically conductive textile materials made of Shieldex and Elitex fibers. A comparison of three flexible capacitive electrodes was presented by Peng et al [ 5 They simultaneously measured the ECG signal using active electrode sensing surfaces made of conductive textile, copper foil tape, and a flexible printed circuit. In Rachim et al [ 6 ], a capacitive electrode’s transmission properties were compared while acquiring an ECG signal through the different dielectric thicknesses.…”

Section: Introductionmentioning

confidence: 99%

Common-Mode Voltage Reduction in Capacitive Sensing of Biosignal Using Capacitive Grounding and DRL Electrode

Bednar

Babušiak

Labuda

et al. 2021

Sensors

View full text Add to dashboard Cite

A capacitive measurement of the biosignals is a very comfortable and unobtrusive way suitable for long-term and wearable monitoring of health conditions. This type of sensing is very susceptible to noise from the surroundings. One of the main noise sources is power-line noise, which acts as a common-mode voltage at the input terminals of the acquisition unit. The origin and methods of noise reduction are described on electric models. Two methods of noise removal are modeled and experimentally verified in the paper. The first method uses a passive capacitive grounding electrode, and the second uses an active capacitive Driven Right Leg (DRL) electrode. The effect of grounding electrode size on noise suppression is experimentally investigated. The increasing electrode area reduces power-line noise: the power of power-line frequency within the measured signal is 70.96 dB, 59.13 dB, and 43.44 dB for a grounding electrode area of 1650 cm2, 3300 cm2, and 4950 cm2, respectively. The capacitive DRL electrode shows better efficiency in common-mode noise rejection than the grounding electrode. When using an electrode area of 1650 cm2, the DRL achieved 46.3 dB better attenuation than the grounding electrode at power-line frequency. In contrast to the grounding electrode, the DRL electrode reduces a capacitive measurement system’s financial costs due to the smaller electrode area made of the costly conductive textile.

show abstract

Comparison of Active Electrode Materials for Non-Contact ECG Measurement

Cited by 34 publications

References 31 publications

Cancelable HD-sEMG-Based Biometrics for Cross-Application Discrepant Personal Identification

Cancelable HD-sEMG-Based Biometrics for Cross-Application Discrepant Personal Identification

A review of wearable and unobtrusive sensing technologies for chronic disease management

Common-Mode Voltage Reduction in Capacitive Sensing of Biosignal Using Capacitive Grounding and DRL Electrode

Contact Info

Product

Resources

About