Biomedical subjects

Chengyuan Tu

Publications and source records attributed to Chengyuan Tu.

2 recordsLinked to original sources

PubMed2004

Nonlinear processing and analysis of ECG data.

A new approach based on a histogram analysis to detect QRS-T complexes of the ECG curve rapidly and reliably is described. The aim consists of a rapid and reliable detection of the P-wave (when atrial fibrillation, AF, is absent) or the f-wave (when AF happens). By means of signal processing techniques such as the fractal dimension method and the Shannon entropy method, two types of ECG signals (with or without AF) were analysed and the significant differences between them documented. Accordingly, the methods allow to determine easily whether AF occurs or not.

Electrocardiography↗

PubMed2003

[A new approach to detection of QRS complexes based on histogram].

A brief comment on the current methods of detecting QRS complexes from ECG(electrocardiogram) including the wavelet transform method is given, and the shortcomings of those methods are discussed. A simple and effective new approach for detecting QRS complexes based on histogram is developed and presented in this paper with a description of the theory of histogram and the match principle for detecting QRS complexes. This new method is checked up on the data from the MIT/BIH ECG database and that from the Beijing Polytechnic University Hospital.

Algorithms↗