{"id":"https://openalex.org/W7164208719","doi":"https://doi.org/10.48550/arxiv.2606.10350","title":"Multi-Angular Reflectance Anisotropy Observed from UAV Multispectral Imagery","display_name":"Multi-Angular Reflectance Anisotropy Observed from UAV Multispectral Imagery","publication_year":2026,"publication_date":"2026-06-09","ids":{"openalex":"https://openalex.org/W7164208719","doi":"https://doi.org/10.48550/arxiv.2606.10350"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2606.10350","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2606.10350","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2606.10350","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074842749","display_name":"Zhenqiang Qin","orcid":"https://orcid.org/0000-0002-7714-9781"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Qin, Zhenqiang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5138311124","display_name":"Chenguang Dai","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Dai, Chenguang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5138385881","display_name":"Min Wang (21070)","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Min","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5138294265","display_name":"Xian Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Li, Xian","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":false,"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/T10111","display_name":"Remote Sensing in Agriculture","score":0.13339999318122864,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.13339999318122864,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12050","display_name":"Optical Polarization and Ellipsometry","score":0.1216999962925911,"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/T12389","display_name":"Infrared Target Detection Methodologies","score":0.10279999673366547,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/bidirectional-reflectance-distribution-function","display_name":"Bidirectional reflectance distribution function","score":0.6830999851226807},{"id":"https://openalex.org/keywords/multispectral-image","display_name":"Multispectral image","score":0.6431000232696533},{"id":"https://openalex.org/keywords/spectroradiometer","display_name":"Spectroradiometer","score":0.48069998621940613},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.4530999958515167},{"id":"https://openalex.org/keywords/anisotropy","display_name":"Anisotropy","score":0.4381999969482422},{"id":"https://openalex.org/keywords/radiometric-calibration","display_name":"Radiometric calibration","score":0.39489999413490295},{"id":"https://openalex.org/keywords/nadir","display_name":"Nadir","score":0.3767000138759613},{"id":"https://openalex.org/keywords/radiometry","display_name":"Radiometry","score":0.37560001015663147},{"id":"https://openalex.org/keywords/extraction","display_name":"Extraction (chemistry)","score":0.3749000132083893}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7519000172615051},{"id":"https://openalex.org/C151596937","wikidata":"https://www.wikidata.org/wiki/Q856980","display_name":"Bidirectional reflectance distribution function","level":3,"score":0.6830999851226807},{"id":"https://openalex.org/C173163844","wikidata":"https://www.wikidata.org/wiki/Q1761440","display_name":"Multispectral image","level":2,"score":0.6431000232696533},{"id":"https://openalex.org/C130066347","wikidata":"https://www.wikidata.org/wiki/Q680509","display_name":"Spectroradiometer","level":3,"score":0.48069998621940613},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.4593000113964081},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.4530999958515167},{"id":"https://openalex.org/C85725439","wikidata":"https://www.wikidata.org/wiki/Q466686","display_name":"Anisotropy","level":2,"score":0.4381999969482422},{"id":"https://openalex.org/C2778522173","wikidata":"https://www.wikidata.org/wiki/Q7281293","display_name":"Radiometric calibration","level":3,"score":0.39489999413490295},{"id":"https://openalex.org/C88575799","wikidata":"https://www.wikidata.org/wiki/Q145825","display_name":"Nadir","level":3,"score":0.3767000138759613},{"id":"https://openalex.org/C87456703","wikidata":"https://www.wikidata.org/wiki/Q247760","display_name":"Radiometry","level":2,"score":0.37560001015663147},{"id":"https://openalex.org/C4725764","wikidata":"https://www.wikidata.org/wiki/Q844704","display_name":"Extraction (chemistry)","level":2,"score":0.3749000132083893},{"id":"https://openalex.org/C170187044","wikidata":"https://www.wikidata.org/wiki/Q214753","display_name":"Radiometric dating","level":2,"score":0.36629998683929443},{"id":"https://openalex.org/C66882249","wikidata":"https://www.wikidata.org/wiki/Q169336","display_name":"Homogeneous","level":2,"score":0.3564999997615814},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.3515999913215637},{"id":"https://openalex.org/C2908650547","wikidata":"https://www.wikidata.org/wiki/Q20999234","display_name":"Intrinsics","level":2,"score":0.3294000029563904},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3269999921321869},{"id":"https://openalex.org/C104541649","wikidata":"https://www.wikidata.org/wiki/Q6935090","display_name":"Multispectral pattern recognition","level":3,"score":0.2930999994277954},{"id":"https://openalex.org/C36464697","wikidata":"https://www.wikidata.org/wiki/Q451553","display_name":"Visualization","level":2,"score":0.290800005197525},{"id":"https://openalex.org/C2775938548","wikidata":"https://www.wikidata.org/wiki/Q1565182","display_name":"Thematic Mapper","level":3,"score":0.28279998898506165},{"id":"https://openalex.org/C29705727","wikidata":"https://www.wikidata.org/wiki/Q294562","display_name":"Polar","level":2,"score":0.27630001306533813},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.259799987077713},{"id":"https://openalex.org/C2778102629","wikidata":"https://www.wikidata.org/wiki/Q725252","display_name":"Satellite imagery","level":2,"score":0.2524999976158142},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.25209999084472656},{"id":"https://openalex.org/C6350597","wikidata":"https://www.wikidata.org/wiki/Q339495","display_name":"Altitude (triangle)","level":2,"score":0.2515999972820282}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2606.10350","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2606.10350","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":"doi:10.48550/arxiv.2606.10350","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2606.10350","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"UAV":[0],"multispectral":[1],"imagery":[2],"naturally":[3],"contains":[4],"multi-angular":[5,27],"observations":[6,88],"due":[7],"to":[8,31],"low":[9],"flight":[10],"altitude":[11],"and":[12,42,49,73,115,123],"wide":[13],"field-of-view":[14],"imaging,":[15],"which":[16],"may":[17],"introduce":[18],"geometry-driven":[19],"radiometric":[20,131],"variability.":[21],"This":[22,66],"study":[23],"proposes":[24],"a":[25,36,103],"geometry-aware":[26],"observation":[28,74],"extraction":[29,69],"workflow":[30],"quantify":[32],"observation-geometry":[33,128],"effects":[34,129],"from":[35,63],"BRDF":[37],"perspective.":[38],"Specifically,":[39],"camera":[40],"intrinsics":[41],"extrinsics":[43],"are":[44,56,89],"refined":[45],"via":[46],"structure-from-motion":[47],"(SFM),":[48],"homogeneous":[50],"regions":[51],"annotated":[52],"on":[53,102,130],"an":[54],"orthomosaic":[55],"reprojected":[57],"onto":[58],"multiple":[59],"raw":[60],"sub-images":[61],"acquired":[62],"different":[64],"viewpoints.":[65],"enables":[67],"joint":[68],"of":[70],"multi-band":[71],"reflectance":[72,108],"geometry":[75],"parameters":[76],"for":[77],"the":[78,97],"same":[79],"ground":[80],"targets":[81],"under":[82],"varying":[83],"viewing":[84],"directions.":[85],"The":[86],"extracted":[87],"further":[90],"analyzed":[91],"using":[92],"band-wise":[93],"polar":[94],"visualization":[95],"in":[96],"(VZA,":[98],"RAA)":[99],"domain.":[100],"Results":[101],"grassland":[104],"target":[105],"show":[106],"clear":[107],"anisotropy":[109],"across":[110],"ten":[111],"bands,":[112],"with":[113],"red-edge":[114],"nearinfrared":[116],"bands":[117],"exhibiting":[118],"119-137%":[119],"variability":[120],"between":[121],"maximum":[122],"minimum":[124],"reflectance,":[125],"indicating":[126],"non-negligible":[127],"consistency.":[132]},"counts_by_year":[],"updated_date":"2026-07-01T06:00:48.157686","created_date":"2026-06-11T00:00:00"}
