{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T02:55:37Z","timestamp":1774839337014,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2021,9,17]],"date-time":"2021-09-17T00:00:00Z","timestamp":1631836800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF-2019R1A2C4070681"],"award-info":[{"award-number":["NRF-2019R1A2C4070681"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003052","name":"Ministry of Trade, Industry and Energy","doi-asserted-by":"publisher","award":["10073159"],"award-info":[{"award-number":["10073159"]}],"id":[{"id":"10.13039\/501100003052","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Pulse rate variability (PRV) refers to the change in the interval between pulses in the blood volume pulse (BVP) signal acquired using photoplethysmography (PPG). PRV is an indicator of the health status of an individual\u2019s autonomic nervous system. A representative method for measuring BVP is contact PPG (CPPG). CPPG may cause discomfort to a user, because the sensor is attached to the finger for measurements. In contrast, noncontact remote PPG (RPPG) extracts BVP signals from face data using a camera without the need for a sensor. However, because the existing RPPG is a technology that extracts a single pulse rate rather than a continuous BVP signal, it is difficult to extract additional health status indicators. Therefore, in this study, PRV analysis is performed using lab-based RPPG technology that can yield continuous BVP signals. In addition, we intended to confirm that the analysis of PRV via RPPG can be performed with the same quality as analysis via CPPG. The experimental results confirmed that the temporal and frequency parameters of PRV extracted from RPPG and CPPG were similar. In terms of correlation, the PRVs of RPPG and CPPG yielded correlation coefficients between 0.98 and 1.0.<\/jats:p>","DOI":"10.3390\/s21186241","type":"journal-article","created":{"date-parts":[[2021,9,22]],"date-time":"2021-09-22T03:47:35Z","timestamp":1632282455000},"page":"6241","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Pulse Rate Variability Analysis Using Remote Photoplethysmography Signals"],"prefix":"10.3390","volume":"21","author":[{"given":"Su-Gyeong","family":"Yu","sequence":"first","affiliation":[{"name":"Department of AI & Informatics, Graduate School, Sangmyung University, Hongjimun 2-Gil 20, Jongno-Gu, Seoul 03016, Korea"}]},{"given":"So-Eui","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of AI & Informatics, Graduate School, Sangmyung University, Hongjimun 2-Gil 20, Jongno-Gu, Seoul 03016, Korea"}]},{"given":"Na Hye","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of AI & Informatics, Graduate School, Sangmyung University, Hongjimun 2-Gil 20, Jongno-Gu, Seoul 03016, Korea"}]},{"given":"Kun Ha","family":"Suh","sequence":"additional","affiliation":[{"name":"R&D Team, Zena Inc., Seoul 04782, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6504-3333","authenticated-orcid":false,"given":"Eui Chul","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Human-Centered AI, Sangmyung University, Hongjimun 2-Gil 20, Jongno-Gu, Seoul 03016, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1007\/s10916-018-0942-5","article-title":"Toward hypertension prediction based on PPG-derived HRV signals: A feasibility study","volume":"42","author":"Lan","year":"2018","journal-title":"J. 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