{"id":"https://openalex.org/W1995132764","doi":"https://doi.org/10.1109/icacci.2014.6968536","title":"Effects of fingertip orientation and flash location in smartphone Photoplethysmography","display_name":"Effects of fingertip orientation and flash location in smartphone Photoplethysmography","publication_year":2014,"publication_date":"2014-09-01","ids":{"openalex":"https://openalex.org/W1995132764","doi":"https://doi.org/10.1109/icacci.2014.6968536","mag":"1995132764"},"language":"en","primary_location":{"id":"doi:10.1109/icacci.2014.6968536","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icacci.2014.6968536","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 International Conference on Advances in Computing, Communications and Informatics (ICACCI)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5015724970","display_name":"Aishwarya Visvanathan","orcid":null},"institutions":[{"id":"https://openalex.org/I55215948","display_name":"Tata Consultancy Services (India)","ror":"https://ror.org/01b9n8m42","country_code":"IN","type":"company","lineage":["https://openalex.org/I4210086519","https://openalex.org/I55215948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Aishwarya Visvanathan","raw_affiliation_strings":["Innovation Lab Kolkata, Tata Consultacy Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Innovation Lab Kolkata, Tata Consultacy Services","institution_ids":["https://openalex.org/I55215948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052089966","display_name":"Rohan Banerjee","orcid":"https://orcid.org/0000-0001-9235-0478"},"institutions":[{"id":"https://openalex.org/I55215948","display_name":"Tata Consultancy Services (India)","ror":"https://ror.org/01b9n8m42","country_code":"IN","type":"company","lineage":["https://openalex.org/I4210086519","https://openalex.org/I55215948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Rohan Banerjee","raw_affiliation_strings":["Innovation Lab Kolkata, Tata Consultacy Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Innovation Lab Kolkata, Tata Consultacy Services","institution_ids":["https://openalex.org/I55215948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101631493","display_name":"Aditi Misra","orcid":"https://orcid.org/0000-0002-5600-5973"},"institutions":[{"id":"https://openalex.org/I55215948","display_name":"Tata Consultancy Services (India)","ror":"https://ror.org/01b9n8m42","country_code":"IN","type":"company","lineage":["https://openalex.org/I4210086519","https://openalex.org/I55215948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Aditi Misra","raw_affiliation_strings":["Innovation Lab Kolkata, Tata Consultacy Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Innovation Lab Kolkata, Tata Consultacy Services","institution_ids":["https://openalex.org/I55215948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031860703","display_name":"Anirban Dutta Choudhury","orcid":"https://orcid.org/0000-0002-5005-8716"},"institutions":[{"id":"https://openalex.org/I55215948","display_name":"Tata Consultancy Services (India)","ror":"https://ror.org/01b9n8m42","country_code":"IN","type":"company","lineage":["https://openalex.org/I4210086519","https://openalex.org/I55215948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anirban Dutta Choudhury","raw_affiliation_strings":["Innovation Lab Kolkata, Tata Consultacy Services, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Innovation Lab Kolkata, Tata Consultacy Services, India","institution_ids":["https://openalex.org/I55215948"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072563444","display_name":"Arpan Pal","orcid":"https://orcid.org/0000-0001-9101-8051"},"institutions":[{"id":"https://openalex.org/I55215948","display_name":"Tata Consultancy Services (India)","ror":"https://ror.org/01b9n8m42","country_code":"IN","type":"company","lineage":["https://openalex.org/I4210086519","https://openalex.org/I55215948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Arpan Pal","raw_affiliation_strings":["Innovation Lab Kolkata, Tata Consultacy Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Innovation Lab Kolkata, Tata Consultacy Services","institution_ids":["https://openalex.org/I55215948"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.06989727,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"468","last_page":"471"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11700","display_name":"Hemodynamic Monitoring and Therapy","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13248","display_name":"Healthcare Technology and Patient Monitoring","score":0.9933000206947327,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/photoplethysmogram","display_name":"Photoplethysmogram","score":0.9622799158096313},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.7500787973403931},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7252680063247681},{"id":"https://openalex.org/keywords/flash","display_name":"Flash (photography)","score":0.7104676365852356},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6510316729545593},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.5771465301513672},{"id":"https://openalex.org/keywords/wearable-computer","display_name":"Wearable computer","score":0.447085440158844},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.1344468593597412},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.08859714865684509}],"concepts":[{"id":"https://openalex.org/C116390426","wikidata":"https://www.wikidata.org/wiki/Q7187885","display_name":"Photoplethysmogram","level":3,"score":0.9622799158096313},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.7500787973403931},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7252680063247681},{"id":"https://openalex.org/C2777526259","wikidata":"https://www.wikidata.org/wiki/Q221836","display_name":"Flash (photography)","level":2,"score":0.7104676365852356},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6510316729545593},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.5771465301513672},{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.447085440158844},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.1344468593597412},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08859714865684509},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icacci.2014.6968536","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icacci.2014.6968536","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 International Conference on Advances in Computing, Communications and Informatics (ICACCI)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W2006046606","https://openalex.org/W2081390890","https://openalex.org/W2083872334","https://openalex.org/W4307050124"],"related_works":["https://openalex.org/W4297152434","https://openalex.org/W2732360296","https://openalex.org/W1994871954","https://openalex.org/W2072858761","https://openalex.org/W4200107443","https://openalex.org/W4239033438","https://openalex.org/W1540261775","https://openalex.org/W1968279762","https://openalex.org/W4205793574","https://openalex.org/W4225612652"],"abstract_inverted_index":{"Smartphone":[0],"based":[1],"reflective":[2],"Photoplethysmography":[3],"(PPG)":[4],"measures":[5],"reflected":[6],"light":[7],"from":[8,12],"blood":[9],"capillaries,":[10],"typically":[11],"the":[13,46,54,63,76,87,94,99,106,112,134],"fingertip":[14,40,89],"of":[15,25,57],"a":[16,23],"user.":[17],"It":[18,101],"has":[19],"gained":[20],"popularity":[21],"as":[22],"means":[24],"unobtrusive":[26],"affordable":[27],"physiological":[28,58],"sensing.":[29],"The":[30,118],"orientation":[31],"and":[32,38,51,74],"relative":[33],"distance":[34,110],"between":[35],"smartphone":[36,67],"flash":[37,113,129],"camera;":[39],"placement":[41],"direction":[42],"etc.":[43],"highly":[44],"influences":[45],"captured":[47,65,92],"PPG":[48],"signal":[49],"quality,":[50],"hence":[52],"affects":[53],"estimation":[55],"quality":[56,116],"parameters.":[59],"In":[60],"this":[61],"paper,":[62],"frames":[64],"by":[66],"camera":[68],"are":[69,78],"divided":[70],"into":[71],"smaller":[72],"blocks":[73,77,107],"all":[75],"compared":[79],"for":[80],"heart":[81],"rate":[82],"estimation.":[83],"Results":[84],"indicate":[85],"that":[86,105],"best":[88],"video":[90],"is":[91,96,102,120],"when":[93],"finger":[95],"pointing":[97],"towards":[98],"flash.":[100],"also":[103],"demonstrated":[104],"having":[108,127],"similar":[109,115],"to":[111,133],"yield":[114],"PPG.":[117],"observation":[119],"validated":[121],"against":[122],"two":[123],"popular":[124],"off-the-shelf":[125],"smartphones,":[126],"different":[128],"position":[130],"with":[131],"respect":[132],"camera.":[135]},"counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}