{"id":"https://openalex.org/W2101591917","doi":"https://doi.org/10.1109/cvpr.2009.5206855","title":"(De) focusing on global light transport for active scene recovery","display_name":"(De) focusing on global light transport for active scene recovery","publication_year":2009,"publication_date":"2009-06-01","ids":{"openalex":"https://openalex.org/W2101591917","doi":"https://doi.org/10.1109/cvpr.2009.5206855","mag":"2101591917"},"language":"en","primary_location":{"id":"doi:10.1109/cvpr.2009.5206855","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cvpr.2009.5206855","pdf_url":null,"source":{"id":"https://openalex.org/S4363607795","display_name":"2009 IEEE Conference on Computer Vision and Pattern Recognition","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Conference on Computer Vision and Pattern Recognition","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074353153","display_name":"Mohit Gupta","orcid":"https://orcid.org/0000-0002-2323-7700"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mohit Gupta","raw_affiliation_strings":["Robotics Institute, Carnegie Mellon University, USA","[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Robotics Institute, Carnegie Mellon University, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106668475","display_name":"Yuandong Tian","orcid":null},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yuandong Tian","raw_affiliation_strings":["Robotics Institute, Carnegie Mellon University, USA","[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Robotics Institute, Carnegie Mellon University, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029497982","display_name":"Srinivasa G. Narasimhan","orcid":"https://orcid.org/0000-0003-0389-1921"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Srinivasa G. Narasimhan","raw_affiliation_strings":["Robotics Institute, Carnegie Mellon University, USA","[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Robotics Institute, Carnegie Mellon University, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"[Robot. Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA]","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100408266","display_name":"Li Zhang","orcid":"https://orcid.org/0009-0003-0682-4027"},"institutions":[{"id":"https://openalex.org/I135310074","display_name":"University of Wisconsin\u2013Madison","ror":"https://ror.org/01y2jtd41","country_code":"US","type":"education","lineage":["https://openalex.org/I135310074"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Li Zhang","raw_affiliation_strings":["Computer Science Department, University of Wisconsin, Madison, USA","Comput. Sci. Dept., Univ. of Wisconsin-Madison, Madison, WI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Science Department, University of Wisconsin, Madison, USA","institution_ids":["https://openalex.org/I135310074"]},{"raw_affiliation_string":"Comput. Sci. Dept., Univ. of Wisconsin-Madison, Madison, WI, USA","institution_ids":["https://openalex.org/I135310074"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":7.7081,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.98358315,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"2969","last_page":"2976"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13114","display_name":"Image Processing Techniques and Applications","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T13114","display_name":"Image Processing Techniques and Applications","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9988999962806702,"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/T10638","display_name":"Optical measurement and interference techniques","score":0.9968000054359436,"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/global-illumination","display_name":"Global illumination","score":0.8570273518562317},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6289811134338379},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5792319178581238},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5398757457733154},{"id":"https://openalex.org/keywords/light-field","display_name":"Light field","score":0.4988706111907959},{"id":"https://openalex.org/keywords/scattering","display_name":"Scattering","score":0.4722900986671448},{"id":"https://openalex.org/keywords/invariant","display_name":"Invariant (physics)","score":0.4558469355106354},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.4505853056907654},{"id":"https://openalex.org/keywords/depth-of-field","display_name":"Depth of field","score":0.4437767267227173},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.42214077711105347},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.3347098231315613},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.25817567110061646},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.15113312005996704},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.10229575634002686},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.07012495398521423}],"concepts":[{"id":"https://openalex.org/C89720835","wikidata":"https://www.wikidata.org/wiki/Q1531701","display_name":"Global illumination","level":3,"score":0.8570273518562317},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6289811134338379},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5792319178581238},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5398757457733154},{"id":"https://openalex.org/C48983235","wikidata":"https://www.wikidata.org/wiki/Q593161","display_name":"Light field","level":2,"score":0.4988706111907959},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.4722900986671448},{"id":"https://openalex.org/C190470478","wikidata":"https://www.wikidata.org/wiki/Q2370229","display_name":"Invariant (physics)","level":2,"score":0.4558469355106354},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.4505853056907654},{"id":"https://openalex.org/C183072630","wikidata":"https://www.wikidata.org/wiki/Q215932","display_name":"Depth of field","level":2,"score":0.4437767267227173},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.42214077711105347},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.3347098231315613},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.25817567110061646},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15113312005996704},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.10229575634002686},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.07012495398521423},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/cvpr.2009.5206855","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cvpr.2009.5206855","pdf_url":null,"source":{"id":"https://openalex.org/S4363607795","display_name":"2009 IEEE Conference on Computer Vision and Pattern Recognition","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Conference on Computer Vision and Pattern Recognition","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.668.1532","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.668.1532","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://vision.lbl.gov/Conferences/cvpr/Papers/data/papers/0041.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W153034902","https://openalex.org/W1510940672","https://openalex.org/W1515194178","https://openalex.org/W1975089519","https://openalex.org/W1997108785","https://openalex.org/W2076246983","https://openalex.org/W2106687120","https://openalex.org/W2111886617","https://openalex.org/W2112340554","https://openalex.org/W2116451263","https://openalex.org/W2122981824","https://openalex.org/W2128593740","https://openalex.org/W2153125455","https://openalex.org/W2157153792","https://openalex.org/W2163213698","https://openalex.org/W2163339695","https://openalex.org/W2166774562","https://openalex.org/W2176418758","https://openalex.org/W2294099857","https://openalex.org/W2911337866","https://openalex.org/W2973948937","https://openalex.org/W3158513731","https://openalex.org/W4235221331","https://openalex.org/W4237891231","https://openalex.org/W4240676912","https://openalex.org/W4250604565","https://openalex.org/W4252560973","https://openalex.org/W4255889046","https://openalex.org/W6630700415","https://openalex.org/W6630744482","https://openalex.org/W6676753137","https://openalex.org/W6758383647","https://openalex.org/W7026950584"],"related_works":["https://openalex.org/W2580863105","https://openalex.org/W2784261531","https://openalex.org/W2288907727","https://openalex.org/W2255352395","https://openalex.org/W2997982366","https://openalex.org/W2334078434","https://openalex.org/W3001631268","https://openalex.org/W3142456067","https://openalex.org/W4320732222","https://openalex.org/W4297921476"],"abstract_inverted_index":{"Most":[0],"active":[1],"scene":[2,8,36,43],"recovery":[3,129],"techniques":[4],"assume":[5],"that":[6,82],"a":[7],"point":[9],"is":[10,40,96],"illuminated":[11],"only":[12],"directly":[13,97],"by":[14],"the":[15,34,46,56,62,92,131,140],"illumination":[16,20,60,66],"source.":[17],"Consequently,":[18],"global":[19,49,59,115,134],"effects":[21,72,141],"due":[22],"to":[23,41,86,111],"inter-reflections,":[24],"sub-surface":[25],"scattering":[26,29],"and":[27,61,118,136,163],"volumetric":[28],"introduce":[30],"strong":[31],"biases":[32],"in":[33,45,99,130,148],"recovered":[35],"shape.":[37],"Our":[38],"goal":[39],"recover":[42],"properties":[44],"presence":[47,132],"of":[48,65,133,142],"illumination.":[50],"To":[51],"this":[52],"end,":[53],"we":[54,77],"study":[55],"interplay":[57],"between":[58],"depth":[63,120,128,150],"cue":[64],"defocus.":[67],"By":[68],"expressing":[69],"both":[70],"these":[71],"as":[73,107],"low":[74],"pass":[75],"filters,":[76],"derive":[78],"an":[79],"approximate":[80],"invariant":[81],"can":[83],"be":[84],"used":[85,110],"separate":[87],"them":[88],"without":[89],"explicitly":[90],"modeling":[91],"light":[93,116],"transport.":[94],"This":[95],"useful":[98],"any":[100],"scenario":[101],"where":[102],"limited":[103],"depth-of-field":[104],"devices":[105],"(such":[106],"projectors)":[108],"are":[109],"illuminate":[112],"scenes":[113,157],"with":[114,158],"transport":[117],"significant":[119],"variations.":[121],"We":[122,152],"show":[123],"two":[124],"applications:":[125],"(a)":[126],"accurate":[127],"illumination,":[135],"(b)":[137],"factoring":[138],"out":[139],"defocus":[143],"for":[144],"correct":[145],"direct-global":[146],"separation":[147],"large":[149],"scenes.":[151],"demonstrate":[153],"our":[154],"approach":[155],"using":[156],"complex":[159],"shapes,":[160],"reflectances,":[161],"textures":[162],"translucencies.":[164]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":3}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}