Compression of ECG signals using variable-length classified vector sets and wavelet transforms
Yükleniyor...
Dosyalar
Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer International Publishing AG
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this article, an improved and more efficient algorithm for the compression of the electrocardiogram (ECG) signals is presented, which combines the processes of modeling ECG signal by variable-length classified signature and envelope vector sets (VL-CSEVS), and residual error coding via wavelet transform. In particular, we form the VL-CSEVS derived from the ECG signals, which exploits the relationship between energy variation and clinical information. The VL-CSEVS are unique patterns generated from many of thousands of ECG segments of two different lengths obtained by the energy based segmentation method, then they are presented to both the transmitter and the receiver used in our proposed compression system. The proposed algorithm is tested on the MIT-BIH Arrhythmia Database and MIT-BIH Compression Test Database and its performance is evaluated by using some evaluation metrics such as the percentage root-mean-square difference (PRD), modified PRD (MPRD), maximum error, and clinical evaluation. Our experimental results imply that our proposed algorithm achieves high compression ratios with low level reconstruction error while preserving the diagnostic information in the reconstructed ECG signal, which has been supported by the clinical tests that we have carried out.
Açıklama
Anahtar Kelimeler
Algorithm, Coefficients, Data compression, Electrocardiogram, Energy based ECG segmentation, Engineering, Quantization, Variable-length classified vector sets
Kaynak
Eurasip Journal on Advances in Signal Processing
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
Sayı
Künye
Gürkan, H. (2012). Compression of ECG signals using variable-length classifA +/- ed vector sets and wavelet transforms. Eurasip Journal on Advances in Signal Processing, 1-17. doi:10.1186/1687-6180-2012-119
