Szczegóły publikacji
Opis bibliograficzny
The use of predictive coding for effective compression of vectocardiograms / Piotr AUGUSTYNIAK // W: MEDICON 2001 : IX Mediterranean conference on Medical and biological engineering and computing : June 12–15, 2001 Pula, Croatia. Pt. 1, Incorporating 2nd Croatian-Slovenian Meeting on Biomedical engineering, 1st International conference on Muscle fibre structure and function, 5th Symposium of Croatian Society for Medical Informatics (Medicine Informatics 2001) / eds. Ratko Magjarevič, [et al.]. — Zagreb : Faculty of Electrical Engineering and Computing (FER), University of Zagreb, cop. 2001. — (IFMBE Proceedings / International Federation for Medical & Biological Engineering ; ISSN 1680-0737). — Na s. tyt. nazwa serii: Proceedings of the International Federation for Medical & Biological Engineering. — ISBN: 953-184-023-7. — S. 368–371. — Bibliogr. s. 371, Abstr.
Autor
Dane bibliometryczne
| ID BaDAP | 36914 |
|---|---|
| Data dodania do BaDAP | 2008-01-31 |
| Rok publikacji | 2001 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Czasopismo/seria | IFMBE Proceedings |
Abstract
The paper presents a sequence coding technique applied to the compression of vectocardiograms. The loops corresponding to P, QRS and T waves in an appropriate temporal window form Groups Of Beats (GOB). All inner loops in a group are predicted using the neighboring loops' values and the prediction error is subject to encoding. The lossless Huffman coding and the lossy DCT-based coding are considered and discussed in the paper. Detailed study of various compression aspects is provided thanks to the numerical experiment carried out for a wide range of parameters. Results of both methods are quite promising: the method preserving loops identity reduces the data volume 3 times (i. e. 2000 bps) and the lossy version reaches the reduction ratio of 4.15 times at a price of 5% PRD distortions.
