Denoising of ECG signals using weighted stationary wavelet total variation

Cardiovascular disease is one of the major diseases that threaten the human health. But the existing electrocardiograph (ECG) monitoring system has many limitations in practical application. In order to monitor ECG in real time, a portable ECG monitoring system based on the Android platform is developed to meet the needs of the public. The system uses BMD101 ECG chip to collect and process ECG signals in the Android system, where data storage and waveform display of ECG data can be realized. The Bluetooth HC-07 module is used for ECG data transmission. The abnormal ECG can be judged by P wave, QRS bandwidth, and RR interval. If abnormal ECG is found, an early warning mechanism will be activated to locate the user’s location in real time and send preset short messages, so that the user can get timely treatment, avoiding dangerous occurrence. The monitoring system is convenient and portable, which brings great convenie to the life of ordinary cardiovascular users.

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On Asymmetric Distances

Analysis and Geometry in Metric Spaces ◽

10.2478/agms-2013-0004 ◽

2013 ◽

Vol 1 ◽

pp. 200-231 ◽

Cited By ~ 6

Author(s):

Andrea C.G. Mennucci

Keyword(s):

Total Variation ◽

Calculus Of Variations ◽

Distance Function ◽

Metric Space ◽

Metric Spaces ◽

Geodesic Segment ◽

Intrinsic Metric ◽

Typical Application ◽

Variation Formula

Abstract In this paper we discuss asymmetric length structures and asymmetric metric spaces. A length structure induces a (semi)distance function; by using the total variation formula, a (semi)distance function induces a length. In the first part we identify a topology in the set of paths that best describes when the above operations are idempotent. As a typical application, we consider the length of paths defined by a Finslerian functional in Calculus of Variations. In the second part we generalize the setting of General metric spaces of Busemann, and discuss the newly found aspects of the theory: we identify three interesting classes of paths, and compare them; we note that a geodesic segment (as defined by Busemann) is not necessarily continuous in our setting; hence we present three different notions of intrinsic metric space.

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Noise Reduction in ECG Signals Using Notch Filter

International Journal of Computer Sciences and Engineering ◽

10.26438/ijcse/v5i8.147150 ◽

2017 ◽

Vol 5 (8) ◽

pp. 147-150

Author(s):

Chhavi Saxena ◽

Hemant Kumar Gupta ◽

P.D. Murarka

Keyword(s):

Noise Reduction ◽

Notch Filter ◽

Ecg Signals

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DE-NOISING OF CT IMAGES USING COMBINED BIVARIATE SHRINKAGE AND ENHANCED TOTAL VARIATION TECHNIQUE

i-manager’s Journal on Electronics Engineering ◽

10.26634/jele.8.4.14426 ◽

2018 ◽

Vol 8 (4) ◽

pp. 12

Author(s):

DEVANAND BHONSLE ◽

VIVEK KUMAR CHANDRA ◽

SINHA G. R. ◽

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...

Keyword(s):

Total Variation ◽

Ct Images ◽

Bivariate Shrinkage ◽

Variation Technique

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