{"id":"https://openalex.org/W4416158513","doi":"https://doi.org/10.1109/wacv61042.2026.00256","title":"PADM: A Physics-aware Diffusion Model for Attenuation Correction","display_name":"PADM: A Physics-aware Diffusion Model for Attenuation Correction","publication_year":2026,"publication_date":"2026-03-06","ids":{"openalex":"https://openalex.org/W4416158513","doi":"https://doi.org/10.1109/wacv61042.2026.00256"},"language":null,"primary_location":{"id":"doi:10.1109/wacv61042.2026.00256","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wacv61042.2026.00256","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2511.06948","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067434970","display_name":"Trung Kien Pham","orcid":"https://orcid.org/0000-0003-2033-4975"},"institutions":[{"id":"https://openalex.org/I94518387","display_name":"Hanoi University of Science and Technology","ror":"https://ror.org/04nyv3z04","country_code":"VN","type":"education","lineage":["https://openalex.org/I94518387"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Trung Kien Pham","raw_affiliation_strings":["Hanoi University of Science and Technology,AI4LIFE,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hanoi University of Science and Technology,AI4LIFE,Vietnam","institution_ids":["https://openalex.org/I94518387"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111805655","display_name":"H. M. Vu","orcid":null},"institutions":[{"id":"https://openalex.org/I94518387","display_name":"Hanoi University of Science and Technology","ror":"https://ror.org/04nyv3z04","country_code":"VN","type":"education","lineage":["https://openalex.org/I94518387"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Hoang Minh Vu","raw_affiliation_strings":["Hanoi University of Science and Technology,AI4LIFE,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hanoi University of Science and Technology,AI4LIFE,Vietnam","institution_ids":["https://openalex.org/I94518387"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003188021","display_name":"Anh Duc Chu","orcid":null},"institutions":[{"id":"https://openalex.org/I94518387","display_name":"Hanoi University of Science and Technology","ror":"https://ror.org/04nyv3z04","country_code":"VN","type":"education","lineage":["https://openalex.org/I94518387"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Anh Duc Chu","raw_affiliation_strings":["Hanoi University of Science and Technology,AI4LIFE,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hanoi University of Science and Technology,AI4LIFE,Vietnam","institution_ids":["https://openalex.org/I94518387"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Dac Thai Nguyen","orcid":null},"institutions":[{"id":"https://openalex.org/I94518387","display_name":"Hanoi University of Science and Technology","ror":"https://ror.org/04nyv3z04","country_code":"VN","type":"education","lineage":["https://openalex.org/I94518387"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Dac Thai Nguyen","raw_affiliation_strings":["Hanoi University of Science and Technology,AI4LIFE,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hanoi University of Science and Technology,AI4LIFE,Vietnam","institution_ids":["https://openalex.org/I94518387"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101718798","display_name":"Trung Th\u00e0nh Nguy\u1ec5n","orcid":"https://orcid.org/0000-0001-8976-2922"},"institutions":[{"id":"https://openalex.org/I4210159142","display_name":"108 Military Central Hospital","ror":"https://ror.org/04k25m262","country_code":"VN","type":"healthcare","lineage":["https://openalex.org/I4210159142"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Trung Thanh Nguyen","raw_affiliation_strings":["108 Military Central Hospital,Vietnam","Nagoya Univeristy,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"108 Military Central Hospital,Vietnam","institution_ids":["https://openalex.org/I4210159142"]},{"raw_affiliation_string":"Nagoya Univeristy,Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030968518","display_name":"Thao Nguyen Truong","orcid":null},"institutions":[{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Thao Nguyen Truong","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology,Japan","institution_ids":["https://openalex.org/I73613424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060047907","display_name":"Mai Hong Son","orcid":"https://orcid.org/0000-0002-4944-5137"},"institutions":[{"id":"https://openalex.org/I4210159142","display_name":"108 Military Central Hospital","ror":"https://ror.org/04k25m262","country_code":"VN","type":"healthcare","lineage":["https://openalex.org/I4210159142"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Mai Hong Son","raw_affiliation_strings":["108 Military Central Hospital,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"108 Military Central Hospital,Vietnam","institution_ids":["https://openalex.org/I4210159142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101926595","display_name":"Th\u00e0nh Trung Nguyen","orcid":"https://orcid.org/0000-0002-9058-7233"},"institutions":[{"id":"https://openalex.org/I4210159142","display_name":"108 Military Central Hospital","ror":"https://ror.org/04k25m262","country_code":"VN","type":"healthcare","lineage":["https://openalex.org/I4210159142"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Thanh Trung Nguyen","raw_affiliation_strings":["108 Military Central Hospital,Vietnam","Nagoya Univeristy,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"108 Military Central Hospital,Vietnam","institution_ids":["https://openalex.org/I4210159142"]},{"raw_affiliation_string":"Nagoya Univeristy,Japan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058485829","display_name":"Phi Le Nguyen","orcid":"https://orcid.org/0000-0001-6547-7641"},"institutions":[{"id":"https://openalex.org/I94518387","display_name":"Hanoi University of Science and Technology","ror":"https://ror.org/04nyv3z04","country_code":"VN","type":"education","lineage":["https://openalex.org/I94518387"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Phi Le Nguyen","raw_affiliation_strings":["Hanoi University of Science and Technology,AI4LIFE,Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hanoi University of Science and Technology,AI4LIFE,Vietnam","institution_ids":["https://openalex.org/I94518387"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.01061712,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2606","last_page":"2615"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.5166000127792358,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.5166000127792358,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.37560001015663147,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.08449999988079071,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/attenuation","display_name":"Attenuation","score":0.8953999876976013},{"id":"https://openalex.org/keywords/correction-for-attenuation","display_name":"Correction for attenuation","score":0.7402999997138977},{"id":"https://openalex.org/keywords/artifact","display_name":"Artifact (error)","score":0.7397000193595886},{"id":"https://openalex.org/keywords/imaging-phantom","display_name":"Imaging phantom","score":0.4595000147819519},{"id":"https://openalex.org/keywords/high-fidelity","display_name":"High fidelity","score":0.43880000710487366},{"id":"https://openalex.org/keywords/diffusion","display_name":"Diffusion","score":0.4278999865055084},{"id":"https://openalex.org/keywords/prior-probability","display_name":"Prior probability","score":0.4194999933242798},{"id":"https://openalex.org/keywords/generative-model","display_name":"Generative model","score":0.37439998984336853}],"concepts":[{"id":"https://openalex.org/C184652730","wikidata":"https://www.wikidata.org/wiki/Q2357982","display_name":"Attenuation","level":2,"score":0.8953999876976013},{"id":"https://openalex.org/C123688308","wikidata":"https://www.wikidata.org/wiki/Q7309537","display_name":"Correction for attenuation","level":3,"score":0.7402999997138977},{"id":"https://openalex.org/C2779010991","wikidata":"https://www.wikidata.org/wiki/Q2720909","display_name":"Artifact (error)","level":2,"score":0.7397000193595886},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5529000163078308},{"id":"https://openalex.org/C104293457","wikidata":"https://www.wikidata.org/wiki/Q28324852","display_name":"Imaging phantom","level":2,"score":0.4595000147819519},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.453000009059906},{"id":"https://openalex.org/C113364801","wikidata":"https://www.wikidata.org/wiki/Q26674","display_name":"High fidelity","level":2,"score":0.43880000710487366},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.4278999865055084},{"id":"https://openalex.org/C177769412","wikidata":"https://www.wikidata.org/wiki/Q278090","display_name":"Prior probability","level":3,"score":0.4194999933242798},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3950999975204468},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.39320001006126404},{"id":"https://openalex.org/C167966045","wikidata":"https://www.wikidata.org/wiki/Q5532625","display_name":"Generative model","level":3,"score":0.37439998984336853},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.37040001153945923},{"id":"https://openalex.org/C2776459999","wikidata":"https://www.wikidata.org/wiki/Q2119376","display_name":"Fidelity","level":2,"score":0.3630000054836273},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.35030001401901245},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.29319998621940613},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.271699994802475},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2689000070095062},{"id":"https://openalex.org/C174576160","wikidata":"https://www.wikidata.org/wiki/Q1183700","display_name":"Deconvolution","level":2,"score":0.25949999690055847},{"id":"https://openalex.org/C39890363","wikidata":"https://www.wikidata.org/wiki/Q36108","display_name":"Generative grammar","level":2,"score":0.2565999925136566},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.25429999828338623},{"id":"https://openalex.org/C2776127602","wikidata":"https://www.wikidata.org/wiki/Q5038319","display_name":"Cardiac imaging","level":2,"score":0.2540000081062317},{"id":"https://openalex.org/C544519230","wikidata":"https://www.wikidata.org/wiki/Q32566","display_name":"Computed tomography","level":2,"score":0.2500999867916107}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/wacv61042.2026.00256","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wacv61042.2026.00256","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2511.06948","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2511.06948","pdf_url":"https://arxiv.org/pdf/2511.06948","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2511.06948","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2511.06948","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2511.06948","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2511.06948","pdf_url":"https://arxiv.org/pdf/2511.06948","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320319125","display_name":"Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc B\u00e1ch Khoa H\u00e0 N\u1ed9i","ror":"https://ror.org/04nyv3z04"}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4416158513.pdf"},"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Attenuation":[0,69],"artifacts":[1,32],"remain":[2],"a":[3,55,74,84,115],"significant":[4],"challenge":[5],"in":[6,62],"cardiac":[7,63],"Myocardial":[8],"Perfusion":[9],"Imaging":[10],"(MPI)":[11],"using":[12,94],"Single-Photon":[13],"Emission":[14],"Computed":[15],"Tomography":[16],"(SPECT),":[17],"often":[18],"compromising":[19],"diagnostic":[20],"accuracy":[21],"and":[22,42,125,151],"reducing":[23],"clinical":[24,48],"interpretability.":[25],"While":[26],"hybrid":[27],"SPECT/CT":[28],"systems":[29],"mitigate":[30],"these":[31],"through":[33],"CT-derived":[34],"attenuation":[35,60,91,132],"maps,":[36],"their":[37],"high":[38],"cost,":[39],"limited":[40],"accessibility,":[41],"added":[43],"radiation":[44],"exposure":[45],"hinder":[46],"widespread":[47],"adoption.":[49],"In":[50],"this":[51,109],"study,":[52],"we":[53,66,111],"propose":[54],"novel":[56],"CT-free":[57],"solution":[58],"to":[59],"correction":[61,93],"SPECT.":[64],"Specifically,":[65],"introduce":[67,113],"Physics-aware":[68],"Correction":[70],"Diffusion":[71],"Model":[72],"(PADM),":[73],"diffusion-based":[75],"generative":[76,141],"method":[77],"that":[78,137],"incorporates":[79],"explicit":[80],"physics":[81],"priors":[82],"via":[83],"teacher\u2013student":[85],"distillation":[86],"mechanism.":[87],"This":[88],"approach":[89],"enables":[90],"artifact":[92],"only":[95],"Non-Attenuation-Corrected":[96],"(NAC)":[97],"input,":[98],"while":[99],"still":[100],"benefiting":[101],"from":[102],"physics-informed":[103],"supervision":[104],"during":[105],"training.":[106],"To":[107],"support":[108],"work,":[110],"also":[112],"CardiAC,":[114],"comprehensive":[116],"dataset":[117],"comprising":[118],"424":[119],"patient":[120],"studies":[121],"with":[122],"paired":[123],"NAC":[124],"Attenuation-Corrected":[126],"(AC)":[127],"reconstructions,":[128],"alongside":[129],"high-resolution":[130],"CT-based":[131],"maps.":[133],"Extensive":[134],"experiments":[135],"demonstrate":[136],"PADM":[138],"outperforms":[139],"state-of-the-art":[140],"models,":[142],"delivering":[143],"superior":[144],"reconstruction":[145],"fidelity":[146],"across":[147],"both":[148],"quantitative":[149],"metrics":[150],"visual":[152],"assessment.":[153]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-11-12T00:00:00"}
