The DOI matches its Crossref record.
Heart sound segmentation algorithm based on heart sound envelogram
Abstract
Desribes the development of a segmentation algorithm which separates the heart sound signal into four parts: the first heart sound, the systole, the second heart sound and the diastole. The segmentation of phonocardiogram (PCG) signals is the first step of analysis and the most important procedure in the automatic diagnosis of heart sounds. This algorithm is based on the normalized average Shannon energy of a PCG signal. The performance of the algorithm has been evaluated using 515 periods of PCG signals recording from 37 objects including normal and abnormal. The algorithm has achieved a 93 percent correct ratio.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
An open access database for the evaluation of heart sound algorithms
Liu, C., Springer, D., Li, Q., Moody, B., Juan, R. A., Chorro, F. J., Castells, F., Roig, J. M., Silva, I., Johnson, A. E. W., et al. (2016) · Physiological Measurement · doi:10.1088/0967-3334/37/12/2181 · Cited by 820
A novel method for detecting R-peaks in electrocardiogram (ECG) signal
Manikandan, M. S., & Soman, K. P. (2012) · Biomedical Signal Processing and Control · doi:10.1016/j.bspc.2011.03.004 · Cited by 393
Evaluation of the signal quality of wrist-based photoplethysmography
Pradhan, N., Rajan, S., & Adler, A. (2019) · Physiological Measurement · doi:10.1088/1361-6579/ab225a · Cited by 50
Non-Contact Vital Signs Monitoring of Dog and Cat Using a UWB Radar
Wang, P., Ma, Y., Liang, F., Zhang, Y., Yu, X., Li, Z., An, Q., Lv, H., & Wang, J. (2020) · Animals · doi:10.3390/ani10020205 · Cited by 45
Algorithm for heart rate extraction in a novel wearable acoustic sensor
Chen, G., Imtiaz, S. A., Aguilar–Pelaez, E., & Rodriguez–Villegas, E. (2015) · Healthcare Technology Letters · doi:10.1049/htl.2014.0095 · Cited by 27
Metadata
- Authors
- Liang, H., Lukkarinen, S., & Hartimo, I.
- Venue
- Computers in Cardiology 1997
- Publisher
- IEEE
- Published
- 2002-11-23
- Pages
- 105-108
- ISSN
- 0276-6574 (ISSN-L)
- OpenAlex
- W1751223533
- Cited by
- 414
- References
- 0
- FWCI
- 36.80
- Type
- conference paper
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Heart sound segmentation algorithm based on heart sound envelogram. https://app.cochat.ai/papers/10.1109/cic.1997.647841
- The paper
- Liang, H., Lukkarinen, S., & Hartimo, I. (2002). Heart sound segmentation algorithm based on heart sound envelogram. Computers in Cardiology 1997. https://doi.org/10.1109/cic.1997.647841
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.