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Cost-efficient speckle interferometry with plastic optical fiber for unobtrusive monitoring of human vital signs
| Content Provider | Semantic Scholar |
|---|---|
| Author | Podbreznik, Peter Đonlagić, Denis Lešnik, Dejan Cigale, Boris Zazula, Damjan |
| Copyright Year | 2013 |
| Abstract | Abstract. A cost-efficient plastic optical fiber (POF) system for unobtrusive monitoring of human vital signs is presented. The system is based on speckle interferometry. A laser diode is butt-coupled to the POF whose exit face projects speckle patterns onto a linear optical sensor array. Sequences of acquired speckle images are transformed into one-dimensional signals by using the phase-shifting method. The signals are analyzed by band-pass filtering and a Morlet-wavelet-based multiresolutional approach for the detection of cardiac and respiratory activities, respectively. The system is tested with 10 healthy nonhospitalized persons, lying supine on a mattress with the embedded POF. Experimental results are assessed statistically: precisions of 98.8%±1.5% and 97.9%±2.3%, sensitivities of 99.4%±0.6% and 95.3%±3%, and mean delays between interferometric detections and corresponding referential signals of 116.6±55.5 and 1299.2±437.3 ms for the heartbeat and respiration are obtained, respectively. |
| File Format | PDF HTM / HTML |
| DOI | 10.1117/1.JBO.18.10.107001 |
| PubMed reference number | 24089254 |
| Journal | Medline |
| Volume Number | 18 |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journalIssue/Download?DOI=10.1117/1.JBO.18.10.107001&downloadType=journal+article&fullDOI=10.1117/1.JBO.18.10.107001&isResultClick=True |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.JBO.18.10.107001 |
| Alternate Webpage(s) | https://www.spiedigitallibrary.org/journals/Journal-of-Biomedical-Optics/volume-18/issue-10/107001/Cost-efficient-speckle-interferometry-with-plastic-optical-fiber-for-unobtrusive/10.1117/1.JBO.18.10.107001.pdf |
| Alternate Webpage(s) | https://doi.org/10.1117/1.JBO.18.10.107001 |
| Journal | Journal of biomedical optics |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
