National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Extraction and Classification of Atrial Activity using Multi-Site Intracardiac Electrograms
Martinů, Žaneta ; Novotná, Petra (referee) ; Hejč, Jakub (advisor)
The aim of this thesis is to acquaint the reader with the origin of supraventricular, mainly their manifestations in intracardiac electrograms. There are described basic methods of analysis of electrocardiographic records. Practical part contains extraction of atrial activity and classification of atrial rate in MATLAB program. Atrial activity is extracted from preprocessed data. The extraction of atrial activity is followed by the classification of atrial rhythm using the K–means method.
HRV analysis based on PPG signal
Martinů, Žaneta ; Vítek, Martin (referee) ; Smital, Lukáš (advisor)
The thesis deals with the detection of systolic and diastolic peaks of pulse waves in a photoplethysmographic database. The detectors are implemented in MATLAB. The following part of the thesis uses the signal delineation of the photoplethysmographic signal to determine pulse rate variability. The final part of the thesis evaluates the use of pulse rate variability and compares it to the heart rate variability.
Extraction and Classification of Atrial Activity using Multi-Site Intracardiac Electrograms
Martinů, Žaneta ; Novotná, Petra (referee) ; Hejč, Jakub (advisor)
The aim of this thesis is to acquaint the reader with the origin of supraventricular, mainly their manifestations in intracardiac electrograms. There are described basic methods of analysis of electrocardiographic records. Practical part contains extraction of atrial activity and classification of atrial rate in MATLAB program. Atrial activity is extracted from preprocessed data. The extraction of atrial activity is followed by the classification of atrial rhythm using the K–means method.

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