{"id":"https://openalex.org/W6907550525","doi":"https://doi.org/10.2312/gch.20241241","title":"Applying BRDF Monotonicity for Refined Shading Normal Extraction from Multi-Light Image Collections","display_name":"Applying BRDF Monotonicity for Refined Shading Normal Extraction from Multi-Light Image Collections","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W6907550525","doi":"https://doi.org/10.2312/gch.20241241"},"language":"en","primary_location":{"id":"doi:10.2312/gch.20241241","is_oa":true,"landing_page_url":"https://doi.org/10.2312/gch.20241241","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":[],"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","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":""},"type":"article","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.2312/gch.20241241","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Pintus, Ruggero","orcid":"https://orcid.org/0000-0003-1786-7068"},"institutions":[{"id":"https://openalex.org/I2800759272","display_name":"Center for Advanced Studies Research and Development in Sardinia","ror":"https://ror.org/03jdxdk20","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2800759272"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Pintus, Ruggero","raw_affiliation_strings":["CRS4, Italy"],"affiliations":[{"raw_affiliation_string":"CRS4, Italy","institution_ids":["https://openalex.org/I2800759272"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zorcolo, Antonio","orcid":"https://orcid.org/0000-0001-7318-6377"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zorcolo, Antonio","raw_affiliation_strings":["CRS4"],"affiliations":[{"raw_affiliation_string":"CRS4","institution_ids":[]}]},{"author_position":"last","author":{"id":null,"display_name":"Gobbetti, Enrico","orcid":"https://orcid.org/0000-0003-0831-2458"},"institutions":[{"id":"https://openalex.org/I2800759272","display_name":"Center for Advanced Studies Research and Development in Sardinia","ror":"https://ror.org/03jdxdk20","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2800759272"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Gobbetti, Enrico","raw_affiliation_strings":["CRS4, Italy"],"affiliations":[{"raw_affiliation_string":"CRS4, Italy","institution_ids":["https://openalex.org/I2800759272"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2800759272"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.34927455,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.6377999782562256,"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":0.6377999782562256,"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.24740000069141388,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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":0.021299999207258224,"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":0.9595999717712402},{"id":"https://openalex.org/keywords/photometric-stereo","display_name":"Photometric stereo","score":0.6330000162124634},{"id":"https://openalex.org/keywords/monotonic-function","display_name":"Monotonic function","score":0.521399974822998},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.4846000075340271},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4578000009059906},{"id":"https://openalex.org/keywords/modular-design","display_name":"Modular design","score":0.44110000133514404},{"id":"https://openalex.org/keywords/normal","display_name":"Normal","score":0.42980000376701355},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.38929998874664307}],"concepts":[{"id":"https://openalex.org/C151596937","wikidata":"https://www.wikidata.org/wiki/Q856980","display_name":"Bidirectional reflectance distribution function","level":3,"score":0.9595999717712402},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6370999813079834},{"id":"https://openalex.org/C44365914","wikidata":"https://www.wikidata.org/wiki/Q17120636","display_name":"Photometric stereo","level":3,"score":0.6330000162124634},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6290000081062317},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.578000009059906},{"id":"https://openalex.org/C72169020","wikidata":"https://www.wikidata.org/wiki/Q194404","display_name":"Monotonic function","level":2,"score":0.521399974822998},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.4846000075340271},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4578000009059906},{"id":"https://openalex.org/C101468663","wikidata":"https://www.wikidata.org/wiki/Q1620158","display_name":"Modular design","level":2,"score":0.44110000133514404},{"id":"https://openalex.org/C118732077","wikidata":"https://www.wikidata.org/wiki/Q273176","display_name":"Normal","level":3,"score":0.42980000376701355},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.38929998874664307},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.37529999017715454},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.3677999973297119},{"id":"https://openalex.org/C177515723","wikidata":"https://www.wikidata.org/wiki/Q1191981","display_name":"Shading","level":2,"score":0.35010001063346863},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34130001068115234},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.335999995470047},{"id":"https://openalex.org/C104065381","wikidata":"https://www.wikidata.org/wiki/Q1002535","display_name":"Geometric modeling","level":2,"score":0.3294999897480011},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.30410000681877136},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.29280000925064087},{"id":"https://openalex.org/C17825722","wikidata":"https://www.wikidata.org/wiki/Q17285","display_name":"Plane (geometry)","level":2,"score":0.28999999165534973},{"id":"https://openalex.org/C7305733","wikidata":"https://www.wikidata.org/wiki/Q207961","display_name":"Geometric shape","level":2,"score":0.28700000047683716},{"id":"https://openalex.org/C23690007","wikidata":"https://www.wikidata.org/wiki/Q1411145","display_name":"Radiance","level":2,"score":0.2831999957561493},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.2808000147342682}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2312/gch.20241241","is_oa":true,"landing_page_url":"https://doi.org/10.2312/gch.20241241","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":[],"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","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":""}],"best_oa_location":{"id":"doi:10.2312/gch.20241241","is_oa":true,"landing_page_url":"https://doi.org/10.2312/gch.20241241","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":[],"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","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":""},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Multi-Light":[0],"Image":[1],"Collections":[2],"(MLICs)":[3],"are":[4,147],"often":[5,44],"transformed":[6],"into":[7,72,122],"geometric":[8,55,70],"normals":[9,12,71],"and":[10,26,79,97,102,114,129,137,142],"BRDF":[11,24,135,138],"for":[13],"visual":[14,48],"exploration":[15],"under":[16,76],"novel":[17],"illumination.":[18],"However,":[19],"discrepancies":[20],"between":[21,93],"the":[22,27,35,52,69,77,83,91,94,98,110,117,127,145],"chosen":[23],"space":[25],"complete":[28],"optical":[29],"behavior":[30],"of":[31,38,90,100,112,131,144],"objects,":[32],"along":[33],"with":[34,51],"possible":[36],"presence":[37],"non-local":[39],"lighting":[40,101],"effects":[41],"in":[42],"measurements,":[43],"lead":[45],"to":[46,67],"sub-optimal":[47],"outcomes":[49],"even":[50],"most":[53],"accurate":[54],"normal":[56,96],"recovery.":[57],"In":[58],"this":[59],"paper,":[60],"we":[61],"introduce":[62],"a":[63,87],"modular":[64],"component":[65],"designed":[66],"convert":[68],"well-behaved":[73],"shading":[74,95],"normals,":[75],"common":[78],"general":[80],"assumption":[81],"that":[82],"reflectance":[84],"must":[85],"be":[86],"monotonic":[88],"function":[89],"angle":[92],"bisector":[99],"viewing":[103],"directions.":[104],"Since":[105],"it":[106],"does":[107],"not":[108],"require":[109],"coupling":[111],"shape":[113],"material":[115],"estimation,":[116],"module":[118],"allows":[119],"seamless":[120],"integration":[121],"existing":[123],"reconstruction":[124],"pipelines,":[125],"supporting":[126],"mixing":[128],"matching":[130],"Photometric":[132],"Stereo":[133],"methods,":[134],"models,":[136],"fitters.":[139],"The":[140],"performance":[141],"versatility":[143],"approach":[146],"demonstrated":[148],"through":[149],"experiments.":[150]},"counts_by_year":[],"updated_date":"2025-11-06T06:51:31.235846","created_date":"2025-10-10T00:00:00"}