{"id":"https://openalex.org/W7213408345","doi":"https://doi.org/10.48550/arxiv.2609.16838","title":"Direct Trajectory Reconstruction for Fast 3D X-ray Particle Tracking Velocimetry in Porous Media","display_name":"Direct Trajectory Reconstruction for Fast 3D X-ray Particle Tracking Velocimetry in Porous Media","publication_year":2026,"publication_date":"2026-09-15","ids":{"openalex":"https://openalex.org/W7213408345","doi":"https://doi.org/10.48550/arxiv.2609.16838"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.16838","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.16838","pdf_url":"https://arxiv.org/pdf/2609.16838","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.16838","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5137051974","display_name":"Robert van der Merwe","orcid":"https://orcid.org/0000-0003-4857-2633","observed_orcids":["https://orcid.org/0000-0003-4857-2633"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"van der Merwe, Robert","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070795297","display_name":"Wannes Goethals","orcid":"https://orcid.org/0000-0002-8927-0562","observed_orcids":["https://orcid.org/0000-0002-8927-0562"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Goethals, Wannes","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007552769","display_name":"Sharon Ellman","orcid":"https://orcid.org/0000-0002-1503-4145","observed_orcids":["https://orcid.org/0000-0002-1503-4145"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ellman, Sharon","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078087883","display_name":"Sojwal Manoorkar","orcid":"https://orcid.org/0000-0002-6309-6527","observed_orcids":["https://orcid.org/0000-0002-6309-6527"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Manoorkar, Sojwal","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040156949","display_name":"Jan Aelterman","orcid":"https://orcid.org/0000-0002-5543-2631","observed_orcids":["https://orcid.org/0000-0002-5543-2631"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Aelterman, Jan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006901075","display_name":"Matthieu Boone","orcid":"https://orcid.org/0000-0002-5478-4141","observed_orcids":["https://orcid.org/0000-0002-5478-4141"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Boone, Matthieu N.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5077183174","display_name":"Tom Bultreys","orcid":"https://orcid.org/0000-0001-8217-8053","observed_orcids":["https://orcid.org/0000-0001-8217-8053"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bultreys, Tom","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10360","display_name":"Fluid Dynamics and Turbulent Flows","score":0.26759999990463257,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10360","display_name":"Fluid Dynamics and Turbulent Flows","score":0.26759999990463257,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T11183","display_name":"Advanced X-ray Imaging Techniques","score":0.2653999924659729,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10491","display_name":"Enhanced Oil Recovery Techniques","score":0.1680999994277954,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/porous-media-flow","display_name":"porous media flow","score":0.7519999742507935},{"id":"https://openalex.org/keywords/motion-blur","display_name":"motion blur","score":0.609000027179718},{"id":"https://openalex.org/keywords/pipe-flow","display_name":"pipe flow","score":0.8069999814033508},{"id":"https://openalex.org/keywords/high-speed-flow","display_name":"high-speed flow","score":0.5130000114440918},{"id":"https://openalex.org/keywords/pore-scale-flow","display_name":"pore-scale flow","score":0.5870000123977661}],"concepts":[{"id":"https://openalex.org/C207857233","wikidata":"https://www.wikidata.org/wiki/Q1756248","display_name":"Particle image velocimetry","level":3,"score":0.7293999791145325},{"id":"https://openalex.org/C177274176","wikidata":"https://www.wikidata.org/wiki/Q7140505","display_name":"Particle tracking velocimetry","level":4,"score":0.6930000185966492},{"id":"https://openalex.org/C144836735","wikidata":"https://www.wikidata.org/wiki/Q7919269","display_name":"Velocimetry","level":2,"score":0.6477000117301941},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.6110000014305115},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.5866000056266785},{"id":"https://openalex.org/C97742081","wikidata":"https://www.wikidata.org/wiki/Q7820109","display_name":"Tomographic reconstruction","level":3,"score":0.5388000011444092},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.5324000120162964},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.49790000915527344},{"id":"https://openalex.org/C60056205","wikidata":"https://www.wikidata.org/wiki/Q691914","display_name":"Opacity","level":2,"score":0.4691999852657318},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4124999940395355},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4099999964237213},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.4099000096321106},{"id":"https://openalex.org/C2778517922","wikidata":"https://www.wikidata.org/wiki/Q7140482","display_name":"Particle (ecology)","level":2,"score":0.4097999930381775},{"id":"https://openalex.org/C2779898584","wikidata":"https://www.wikidata.org/wiki/Q7820109","display_name":"Reconstruction algorithm","level":3,"score":0.4074000120162964},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.39250001311302185},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.3727000057697296},{"id":"https://openalex.org/C2778863792","wikidata":"https://www.wikidata.org/wiki/Q16909918","display_name":"TRACER","level":2,"score":0.3384999930858612},{"id":"https://openalex.org/C105569014","wikidata":"https://www.wikidata.org/wiki/Q3271208","display_name":"Porous medium","level":3,"score":0.3352999985218048},{"id":"https://openalex.org/C118530786","wikidata":"https://www.wikidata.org/wiki/Q1134732","display_name":"Instrumentation (computer programming)","level":2,"score":0.321399986743927},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.3050000071525574},{"id":"https://openalex.org/C83893533","wikidata":"https://www.wikidata.org/wiki/Q5462121","display_name":"Flow visualization","level":3,"score":0.2994000017642975},{"id":"https://openalex.org/C109950114","wikidata":"https://www.wikidata.org/wiki/Q4464732","display_name":"3D reconstruction","level":2,"score":0.2851000130176544},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2662000060081482}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.16838","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.16838","pdf_url":"https://arxiv.org/pdf/2609.16838","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.16838","doi":"https://doi.org/10.48550/arxiv.2609.16838","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.16838","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,"listed_in":[],"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":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.16838","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.16838","pdf_url":"https://arxiv.org/pdf/2609.16838","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G4442406713","display_name":null,"funder_award_id":"101116228","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G5446930427","display_name":"Solving barriers to time-resolved 3D x-ray imaging with a new data acquisition and processing paradigm","funder_award_id":"G0APF25N","funder_id":"https://openalex.org/F4320321730","funder_display_name":"Fonds Wetenschappelijk Onderzoek"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320321730","display_name":"Fonds Wetenschappelijk Onderzoek","ror":"https://ror.org/03qtxy027"},{"id":"https://openalex.org/F4320322603","display_name":"Universiteit Gent","ror":"https://ror.org/00cv9y106"},{"id":"https://openalex.org/F4320327336","display_name":"Vlaamse regering","ror":null},{"id":"https://openalex.org/F4320335227","display_name":"Bijzonder Onderzoeksfonds UGent","ror":"https://ror.org/00cv9y106"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7213408345.pdf","grobid_xml":"https://content.openalex.org/works/W7213408345.grobid-xml"},"referenced_works_count":29,"referenced_works":["https://openalex.org/W1986374267","https://openalex.org/W1987107664","https://openalex.org/W1988903143","https://openalex.org/W1994976874","https://openalex.org/W2011161612","https://openalex.org/W2025836343","https://openalex.org/W2068208708","https://openalex.org/W2103891764","https://openalex.org/W2121453294","https://openalex.org/W2343447907","https://openalex.org/W2544759280","https://openalex.org/W2784350055","https://openalex.org/W2896416039","https://openalex.org/W3019827774","https://openalex.org/W3089195944","https://openalex.org/W3105955077","https://openalex.org/W3108700187","https://openalex.org/W3182371286","https://openalex.org/W3193392381","https://openalex.org/W4200344755","https://openalex.org/W4200605413","https://openalex.org/W4221167935","https://openalex.org/W4313828936","https://openalex.org/W4390224516","https://openalex.org/W4392763260","https://openalex.org/W4409991187","https://openalex.org/W4413290121","https://openalex.org/W4413972461","https://openalex.org/W7127120457"],"related_works":["https://openalex.org/W7162703090","https://openalex.org/W7162720133","https://openalex.org/W4221167935","https://openalex.org/W4200605413","https://openalex.org/W2291135632","https://openalex.org/W4394993622","https://openalex.org/W2017723344","https://openalex.org/W63376066","https://openalex.org/W2041804702","https://openalex.org/W7095194933"],"abstract_inverted_index":{"X-ray":[0,231],"tomographic":[1,144,232],"particle":[2,49,134,237],"tracking":[3],"velocimetry":[4,38,118,217],"is":[5,21],"a":[6,55,161,179,184],"promising":[7],"tool":[8],"to":[9,28,32,46,225],"provide":[10],"pore-scale":[11],"insight":[12],"into":[13,90],"fluid":[14],"flow":[15,174,177],"inside":[16],"opaque":[17,219],"porous":[18,181],"media.":[19],"This":[20],"critical":[22],"for":[23],"applications":[24],"ranging":[25],"from":[26,61,137],"geo-energy":[27],"electrochemistry.":[29],"Current":[30],"approaches":[31],"implement":[33,157],"this":[34,121,126,158],"three-dimensional,":[35],"three-component":[36],"(3D-3C)":[37],"technique":[39],"use":[40],"conventional":[41],"micro-computed":[42],"tomography":[43],"(CT)":[44],"workflows":[45,52],"recover":[47],"tracer":[48,76,106],"trajectories.":[50,91],"These":[51],"first":[53],"reconstruct":[54],"sequence":[56],"of":[57,83,104,116,151],"3D":[58,153],"CT":[59,85,98,154],"images":[60,86],"radiographs":[62],"which":[63],"are":[64,78],"sequentially":[65],"acquired":[66,139],"at":[67,207],"time":[68],"intervals":[69],"that":[70,125,215],"span":[71],"multiple":[72],"viewing":[73],"angles.":[74],"The":[75],"particles":[77],"then":[79],"detected":[80],"in":[81,160,187,218],"each":[82],"these":[84,208],"and":[87,113,147,166,175,203],"finally":[88],"linked":[89],"However,":[92],"motion-blurring":[93],"induced":[94],"by":[95,131,229],"the":[96,102,110,117,138,142,148,188],"static":[97],"volume":[99],"reconstruction":[100,145,234],"impairs":[101],"detectability":[103],"fast-moving":[105],"particles,":[107],"severely":[108],"limiting":[109],"temporal":[111],"resolution":[112],"dynamic":[114],"range":[115],"outcome.":[119],"In":[120],"work,":[122],"we":[123],"show":[124],"limitation":[127],"can":[128,222],"be":[129,223],"overcome":[130],"explicitly":[132],"recovering":[133],"trajectories":[135],"directly":[136],"radiographs,":[140],"bypassing":[141],"intermediate":[143],"step":[146],"static-scene":[149],"assumptions":[150],"traditional":[152],"reconstructions.":[155],"We":[156],"approach":[159],"new":[162],"open-source":[163],"algorithm,":[164],"CTracks,":[165],"validate":[167],"it":[168],"using":[169],"experimental":[170],"data":[171],"on":[172,176],"pipe":[173],"through":[178],"complex":[180],"medium,":[182],"demonstrating":[183],"five-fold":[185],"increase":[186],"maximum":[189],"detectable":[190],"velocity":[191],"compared":[192],"with":[193,235],"state-of-the-art":[194],"methods.":[195],"Numerical":[196],"simulations":[197],"further":[198],"confirm":[199],"improved":[200],"detection":[201],"rates":[202],"bounded":[204],"trajectory":[205,238],"errors":[206],"increased":[209],"velocities.":[210],"Our":[211],"work":[212],"thus":[213],"demonstrates":[214],"3D-3C":[216],"microscopic":[220],"geometries":[221],"extended":[224],"substantially":[226],"faster":[227],"flows":[228],"replacing":[230],"image":[233],"direct":[236],"reconstruction.":[239]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-17T00:00:00"}