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However, conventional at-home BP detection devices require completely blocking blood flow, which can lead to discomfort and disruption of normal activity when users want to perform frequent assessments. So a convenient solution should reduce the trouble of detecting BP in the daily life. In this work, we have designed and evaluated a smartphone-based BP detection application named\n            <jats:sc>WIB<\/jats:sc>\n            .\n            <jats:sc>WIB<\/jats:sc>\n            utilizes the smartphone\u2019s acoustic sensors to obtain the chest motion caused by the heart beating and the smartphone\u2019s camera to capture the pulse at the fingertip. We have recruited 30 volunteers who come from the author\u2019s institution, to carry out comprehensive evaluations of\n            <jats:sc>WIB<\/jats:sc>\n            . We perform BP perturbation experiments to obtain different blood pressure data from these volunteers. The experiment results show that the average of Pearson correlation coefficient across all volunteers of the blood pressure estimation is 0.42\u20130.74 (\u03b1 =0.6, \u03c3 =0.12), the average of RMSE across all volunteers is 4.2\u20138.8 mmHg (\u03b1 =5.8, \u03c3 =1.8).\n          <\/jats:p>","DOI":"10.1145\/3595182","type":"journal-article","created":{"date-parts":[[2023,4,29]],"date-time":"2023-04-29T11:13:47Z","timestamp":1682766827000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":5,"title":["<scp>WIB<\/scp>\n            : Real-time, Non-intrusive Blood Pressure Detection Using Smartphones"],"prefix":"10.1145","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3612-7989","authenticated-orcid":false,"given":"Jian","family":"Zhang","sequence":"first","affiliation":[{"name":"Wuhan University"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6173-2801","authenticated-orcid":false,"given":"Wu","family":"Yuan","sequence":"additional","affiliation":[{"name":"Wuhan Textile University"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1382-0679","authenticated-orcid":false,"given":"Yanjiao","family":"Chen","sequence":"additional","affiliation":[{"name":"Zhejiang University"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0108-5582","authenticated-orcid":false,"given":"Mingxi","family":"Li","sequence":"additional","affiliation":[{"name":"Wuhan University"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2767-0429","authenticated-orcid":false,"given":"Junkongshuai","family":"Wang","sequence":"additional","affiliation":[{"name":"Fudan University"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9205-1881","authenticated-orcid":false,"given":"Qian","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hong Kong University of Science and Technology"}]}],"member":"320","published-online":{"date-parts":[[2023,6,9]]},"reference":[{"key":"e_1_3_1_2_2","unstructured":"2017. 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