{"id":"https://openalex.org/W3126211901","doi":"https://doi.org/10.3390/s21030923","title":"Unsupervised Learning of Depth and Camera Pose with Feature Map Warping","display_name":"Unsupervised Learning of Depth and Camera Pose with Feature Map Warping","publication_year":2021,"publication_date":"2021-01-30","ids":{"openalex":"https://openalex.org/W3126211901","doi":"https://doi.org/10.3390/s21030923","mag":"3126211901","pmid":"https://pubmed.ncbi.nlm.nih.gov/33573136"},"language":"en","primary_location":{"id":"doi:10.3390/s21030923","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21030923","pdf_url":"https://www.mdpi.com/1424-8220/21/3/923/pdf?version=1611991155","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/3/923/pdf?version=1611991155","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5009300680","display_name":"Ente Guo","orcid":"https://orcid.org/0000-0002-6772-3954"},"institutions":[{"id":"https://openalex.org/I80947539","display_name":"Fuzhou University","ror":"https://ror.org/011xvna82","country_code":"CN","type":"education","lineage":["https://openalex.org/I80947539"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ente Guo","raw_affiliation_strings":["College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China"],"raw_orcid":"https://orcid.org/0000-0002-6772-3954","affiliations":[{"raw_affiliation_string":"College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China","institution_ids":["https://openalex.org/I80947539"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100715421","display_name":"Zhifeng Chen","orcid":"https://orcid.org/0000-0001-5137-1344"},"institutions":[{"id":"https://openalex.org/I80947539","display_name":"Fuzhou University","ror":"https://ror.org/011xvna82","country_code":"CN","type":"education","lineage":["https://openalex.org/I80947539"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhifeng Chen","raw_affiliation_strings":["College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China","institution_ids":["https://openalex.org/I80947539"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061233361","display_name":"Yanlin Zhou","orcid":"https://orcid.org/0000-0002-1786-3107"},"institutions":[{"id":"https://openalex.org/I33213144","display_name":"University of Florida","ror":"https://ror.org/02y3ad647","country_code":"US","type":"education","lineage":["https://openalex.org/I33213144"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yanlin Zhou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA","institution_ids":["https://openalex.org/I33213144"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001469325","display_name":"Dapeng Wu","orcid":"https://orcid.org/0000-0003-1755-0183"},"institutions":[{"id":"https://openalex.org/I33213144","display_name":"University of Florida","ror":"https://ror.org/02y3ad647","country_code":"US","type":"education","lineage":["https://openalex.org/I33213144"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dapeng Oliver Wu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA","institution_ids":["https://openalex.org/I33213144"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100715421"],"corresponding_institution_ids":["https://openalex.org/I80947539"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":0.2711,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.4918741,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"21","issue":"3","first_page":"923","last_page":"923"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10638","display_name":"Optical measurement and interference techniques","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.8058431148529053},{"id":"https://openalex.org/keywords/image-warping","display_name":"Image warping","score":0.8034219741821289},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.7103236317634583},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7027914524078369},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.6235156655311584},{"id":"https://openalex.org/keywords/brightness","display_name":"Brightness","score":0.5738502740859985},{"id":"https://openalex.org/keywords/pyramid","display_name":"Pyramid (geometry)","score":0.421772301197052},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3563985526561737},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18560734391212463}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.8058431148529053},{"id":"https://openalex.org/C157202957","wikidata":"https://www.wikidata.org/wiki/Q1659609","display_name":"Image warping","level":2,"score":0.8034219741821289},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.7103236317634583},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7027914524078369},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.6235156655311584},{"id":"https://openalex.org/C125245961","wikidata":"https://www.wikidata.org/wiki/Q221656","display_name":"Brightness","level":2,"score":0.5738502740859985},{"id":"https://openalex.org/C142575187","wikidata":"https://www.wikidata.org/wiki/Q3358290","display_name":"Pyramid (geometry)","level":2,"score":0.421772301197052},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3563985526561737},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18560734391212463},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.3390/s21030923","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21030923","pdf_url":"https://www.mdpi.com/1424-8220/21/3/923/pdf?version=1611991155","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:33573136","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33573136","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:50a46d494618467f805890f9f63f5ccf","is_oa":true,"landing_page_url":"https://doaj.org/article/50a46d494618467f805890f9f63f5ccf","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 21, Iss 3, p 923 (2021)","raw_type":"article"},{"id":"pmh:oai:europepmc.org:6772416","is_oa":true,"landing_page_url":"http://europepmc.org/pmc/articles/PMC7866542","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/3/923/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21030923","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 21; Issue 3; Pages: 923","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7866542","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7866542","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s21030923","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21030923","pdf_url":"https://www.mdpi.com/1424-8220/21/3/923/pdf?version=1611991155","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G818703282","display_name":null,"funder_award_id":"NSFC 61671153","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8254120149","display_name":null,"funder_award_id":"61671153","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3126211901.pdf","grobid_xml":"https://content.openalex.org/works/W3126211901.grobid-xml"},"referenced_works_count":44,"referenced_works":["https://openalex.org/W1512698229","https://openalex.org/W1612997784","https://openalex.org/W1803059841","https://openalex.org/W1905829557","https://openalex.org/W2021851106","https://openalex.org/W2099940712","https://openalex.org/W2133665775","https://openalex.org/W2150066425","https://openalex.org/W2171740948","https://openalex.org/W2176412452","https://openalex.org/W2194775991","https://openalex.org/W2300779272","https://openalex.org/W2520707372","https://openalex.org/W2605938684","https://openalex.org/W2608018946","https://openalex.org/W2609883120","https://openalex.org/W2784652921","https://openalex.org/W2788857104","https://openalex.org/W2810554001","https://openalex.org/W2890949887","https://openalex.org/W2894983388","https://openalex.org/W2951234442","https://openalex.org/W2962807621","https://openalex.org/W2963150697","https://openalex.org/W2963265330","https://openalex.org/W2963412495","https://openalex.org/W2963549785","https://openalex.org/W2963583471","https://openalex.org/W2963591054","https://openalex.org/W2963654727","https://openalex.org/W2963706662","https://openalex.org/W2963782415","https://openalex.org/W2963906250","https://openalex.org/W2964968086","https://openalex.org/W2970369664","https://openalex.org/W2985775862","https://openalex.org/W3035056458","https://openalex.org/W3089503906","https://openalex.org/W3100615802","https://openalex.org/W3103648783","https://openalex.org/W4240321184","https://openalex.org/W6618372016","https://openalex.org/W6631190155","https://openalex.org/W6756040250"],"related_works":["https://openalex.org/W1670332068","https://openalex.org/W2095618524","https://openalex.org/W2735770592","https://openalex.org/W1971024059","https://openalex.org/W1502062143","https://openalex.org/W4224236531","https://openalex.org/W4291993329","https://openalex.org/W4206776094","https://openalex.org/W3154920669","https://openalex.org/W3121197456"],"abstract_inverted_index":{"Estimating":[0],"the":[1,17,40,47,60,75,83,99,127,135],"depth":[2,28,118],"of":[3,7,62,111,117],"image":[4],"and":[5,13,20,29,56,82,86,119,140],"egomotion":[6,31],"agent":[8],"are":[9],"important":[10],"for":[11],"autonomous":[12],"robot":[14],"in":[15],"understanding":[16],"surrounding":[18],"environment":[19],"avoiding":[21],"collision.":[22],"Most":[23],"existing":[24],"unsupervised":[25,129],"methods":[26],"estimate":[27],"camera":[30,120],"by":[32,151],"minimizing":[33],"photometric":[34,41,93],"error":[35,78,148],"between":[36,79],"adjacent":[37,84],"frames.":[38],"However,":[39],"consistency":[42],"sometimes":[43],"does":[44],"not":[45],"meet":[46],"real":[48],"situation,":[49],"such":[50],"as":[51],"brightness":[52,63],"change,":[53,64],"moving":[54],"objects":[55],"occlusion.":[57],"To":[58],"reduce":[59],"influence":[61],"we":[65,97],"propose":[66,98],"a":[67,80],"feature":[68,77],"pyramid":[69],"matching":[70],"loss":[71],"(FPML)":[72],"which":[73,104],"captures":[74],"trainable":[76],"current":[81],"frames":[85],"therefore":[87],"it":[88],"is":[89,131],"more":[90],"robust":[91],"than":[92],"error.":[94],"In":[95],"addition,":[96],"occlusion-aware":[100],"mask":[101],"(OAM)":[102],"network":[103],"can":[105],"indicate":[106],"occlusion":[107],"according":[108],"to":[109,113],"change":[110],"masks":[112],"improve":[114],"estimation":[115],"accuracy":[116],"pose.":[121],"The":[122],"experimental":[123],"results":[124],"verify":[125],"that":[126],"proposed":[128],"approach":[130],"highly":[132],"competitive":[133],"against":[134],"state-of-the-art":[136],"methods,":[137],"both":[138],"qualitatively":[139],"quantitatively.":[141],"Specifically,":[142],"our":[143],"method":[144],"reduces":[145],"absolute":[146],"relative":[147],"(Abs":[149],"Rel)":[150],"0.017-0.088.":[152]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}