Bufferless compression of asynchronously sampled ECG signals in cubic hermitian vector space

dc.contributor.authorThanks, Marisa
dc.contributor.authorNiederhauser, Thomas
dc.contributor.authorHaeberlin, Andreas
dc.contributor.authorWildhaber, Reto
dc.contributor.authorVogel, Rolf
dc.contributor.authorJacomet, Marcel
dc.contributor.authorGoette, Josef
dc.date.accessioned2024-08-13T08:24:55Z
dc.date.available2024-08-13T08:24:55Z
dc.date.issued2015
dc.description.abstractAsynchronous level crossing sampling analog-to-digital converters (ADCs) are known to be more energy efficient and produce fewer samples than their equidistantly sampling counterparts. However, as the required threshold voltage is lowered, the number of samples and, in turn, the data rate and the energy consumed by the overall system increases. In this paper, we present a cubic Hermitian vector-based technique for online compression of asynchronously sampled electrocardiogram signals. The proposed method is computationally efficient data compression. The algorithm has complexity O(n), thus well suited for asynchronous ADCs. Our algorithm requires no data buffering, maintaining the energy advantage of asynchronous ADCs. The proposed method of compression has a compression ratio of up to 90% with achievable percentage root-mean-square difference ratios as a low as 0.97. The algorithm preserves the superior feature-to-feature timing accuracy of asynchronously sampled signals. These advantages are achieved in a computationally efficient manner since algorithm boundary parameters for the signals are extracted a priori.
dc.identifier.doi10.1109/tbme.2015.2449901
dc.identifier.issn0018-9294
dc.identifier.issn1558-2531
dc.identifier.urihttps://irf.fhnw.ch/handle/11654/46820
dc.issue12
dc.language.isoen
dc.publisherIEEE
dc.relation.ispartofIEEE Transactions on Biomedical Engineering
dc.titleBufferless compression of asynchronously sampled ECG signals in cubic hermitian vector space
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift
dc.volume62
dspace.entity.typePublication
fhnw.InventedHereNo
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.affiliation.hochschuleHochschule für Life Sciences FHNWde_CH
fhnw.affiliation.institutInstitut für Medizintechnik und Medizininformatikde_CH
fhnw.openAccessCategoryClosed
fhnw.pagination2878-2887
fhnw.publicationStatePublished
relation.isAuthorOfPublication66894b38-407a-46f1-9e66-f573a64bf357
relation.isAuthorOfPublication.latestForDiscovery66894b38-407a-46f1-9e66-f573a64bf357
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