{"id":"https://openalex.org/W7140181357","doi":"https://doi.org/10.1111/cgf.70316","title":"Lightmap Compression with Color\u2010Coherent UV Clustering and Cascade Texture Optimization","display_name":"Lightmap Compression with Color\u2010Coherent UV Clustering and Cascade Texture Optimization","publication_year":2026,"publication_date":"2026-03-24","ids":{"openalex":"https://openalex.org/W7140181357","doi":"https://doi.org/10.1111/cgf.70316"},"language":"en","primary_location":{"id":"doi:10.1111/cgf.70316","is_oa":false,"landing_page_url":"https://doi.org/10.1111/cgf.70316","pdf_url":null,"source":{"id":"https://openalex.org/S67831204","display_name":"Computer Graphics Forum","issn_l":"0167-7055","issn":["0167-7055","1467-8659"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Graphics Forum","raw_type":"journal-article"},"type":"article","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":null,"display_name":"Dehan Chen","orcid":"https://orcid.org/0009-0006-5829-9596"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dehan Chen","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0009-0006-5829-9596","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Hongyu Huang","orcid":"https://orcid.org/0009-0001-9094-0893"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongyu Huang","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0009-0001-9094-0893","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Yuzhe Luo","orcid":"https://orcid.org/0009-0008-5796-6144"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuzhe Luo","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0009-0008-5796-6144","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Hao Xu","orcid":"https://orcid.org/0000-0001-5690-367X"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hao Xu","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0000-0001-5690-367X","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Yuqing Zhang","orcid":"https://orcid.org/0000-0001-8512-0551"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuqing Zhang","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0000-0001-8512-0551","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Sipeng Yang","orcid":"https://orcid.org/0000-0002-8141-2335"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sipeng Yang","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0000-0002-8141-2335","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xifeng Gao","orcid":"https://orcid.org/0000-0003-0829-7075"},"institutions":[{"id":"https://openalex.org/I4210152687","display_name":"Lipetsk State Pedagogical University","ror":"https://ror.org/05k0x2w50","country_code":"RU","type":"education","lineage":["https://openalex.org/I4210152687"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Xifeng Gao","raw_affiliation_strings":["LIGHTSPEED"],"raw_orcid":"https://orcid.org/0000-0003-0829-7075","affiliations":[{"raw_affiliation_string":"LIGHTSPEED","institution_ids":["https://openalex.org/I4210152687"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Heng Cai","orcid":"https://orcid.org/0009-0001-4212-375X"},"institutions":[{"id":"https://openalex.org/I2250653659","display_name":"Tencent (China)","ror":"https://ror.org/00hhjss72","country_code":"CN","type":"company","lineage":["https://openalex.org/I2250653659"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Heng Cai","raw_affiliation_strings":["Tencent"],"raw_orcid":"https://orcid.org/0009-0001-4212-375X","affiliations":[{"raw_affiliation_string":"Tencent","institution_ids":["https://openalex.org/I2250653659"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Chao Li","orcid":"https://orcid.org/0000-0002-4187-1510"},"institutions":[{"id":"https://openalex.org/I2250653659","display_name":"Tencent (China)","ror":"https://ror.org/00hhjss72","country_code":"CN","type":"company","lineage":["https://openalex.org/I2250653659"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Chao Li","raw_affiliation_strings":["Tencent"],"raw_orcid":"https://orcid.org/0000-0002-4187-1510","affiliations":[{"raw_affiliation_string":"Tencent","institution_ids":["https://openalex.org/I2250653659"]}]},{"author_position":"last","author":{"id":null,"display_name":"Xiaogang Jin","orcid":"https://orcid.org/0000-0001-7339-2920"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaogang Jin","raw_affiliation_strings":["State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China"],"raw_orcid":"https://orcid.org/0000-0001-7339-2920","affiliations":[{"raw_affiliation_string":"State Key Lab of CAD&amp;CG Zhejiang University  Hangzhou 310058 China","institution_ids":["https://openalex.org/I76130692"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2250653659","https://openalex.org/I76130692"],"apc_list":{"value":3710,"currency":"USD","value_usd":3710},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.33333333,"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":false,"primary_topic":{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.5651000142097473,"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"}},"topics":[{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.5651000142097473,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.15940000116825104,"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/T10531","display_name":"Advanced Vision and Imaging","score":0.05249999836087227,"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/compression","display_name":"Compression (physics)","score":0.6869000196456909},{"id":"https://openalex.org/keywords/texture-compression","display_name":"Texture compression","score":0.6751000285148621},{"id":"https://openalex.org/keywords/cascade","display_name":"Cascade","score":0.59579998254776},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.586899995803833},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5763999819755554},{"id":"https://openalex.org/keywords/texture-synthesis","display_name":"Texture synthesis","score":0.5385000109672546},{"id":"https://openalex.org/keywords/compression-ratio","display_name":"Compression ratio","score":0.5339000225067139},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.527999997138977}],"concepts":[{"id":"https://openalex.org/C180016635","wikidata":"https://www.wikidata.org/wiki/Q2712821","display_name":"Compression (physics)","level":2,"score":0.6869000196456909},{"id":"https://openalex.org/C54243161","wikidata":"https://www.wikidata.org/wiki/Q39333","display_name":"Texture compression","level":5,"score":0.6751000285148621},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6690000295639038},{"id":"https://openalex.org/C34146451","wikidata":"https://www.wikidata.org/wiki/Q5048094","display_name":"Cascade","level":2,"score":0.59579998254776},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.586899995803833},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5763999819755554},{"id":"https://openalex.org/C50494287","wikidata":"https://www.wikidata.org/wiki/Q658467","display_name":"Texture synthesis","level":5,"score":0.5385000109672546},{"id":"https://openalex.org/C25797200","wikidata":"https://www.wikidata.org/wiki/Q828137","display_name":"Compression ratio","level":3,"score":0.5339000225067139},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.527999997138977},{"id":"https://openalex.org/C81081738","wikidata":"https://www.wikidata.org/wiki/Q55542","display_name":"Lossless compression","level":3,"score":0.5249999761581421},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5131000280380249},{"id":"https://openalex.org/C2781195486","wikidata":"https://www.wikidata.org/wiki/Q289436","display_name":"Texture (cosmology)","level":3,"score":0.47350001335144043},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.4458000063896179},{"id":"https://openalex.org/C13481523","wikidata":"https://www.wikidata.org/wiki/Q412438","display_name":"Image compression","level":4,"score":0.4293000102043152},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4230000078678131},{"id":"https://openalex.org/C200585589","wikidata":"https://www.wikidata.org/wiki/Q752176","display_name":"Texture mapping","level":2,"score":0.41600000858306885},{"id":"https://openalex.org/C144743038","wikidata":"https://www.wikidata.org/wiki/Q3267765","display_name":"Texture filtering","level":5,"score":0.41499999165534973},{"id":"https://openalex.org/C164866538","wikidata":"https://www.wikidata.org/wiki/Q367351","display_name":"Cluster (spacecraft)","level":2,"score":0.4032999873161316},{"id":"https://openalex.org/C43521106","wikidata":"https://www.wikidata.org/wiki/Q2165493","display_name":"Pipeline (software)","level":2,"score":0.37929999828338623},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3781999945640564},{"id":"https://openalex.org/C94835093","wikidata":"https://www.wikidata.org/wiki/Q3113333","display_name":"Data compression ratio","level":5,"score":0.3427000045776367},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3142000138759613},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.31029999256134033},{"id":"https://openalex.org/C202615002","wikidata":"https://www.wikidata.org/wiki/Q783507","display_name":"Differentiable function","level":2,"score":0.28119999170303345},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.2700999975204468}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1111/cgf.70316","is_oa":false,"landing_page_url":"https://doi.org/10.1111/cgf.70316","pdf_url":null,"source":{"id":"https://openalex.org/S67831204","display_name":"Computer Graphics Forum","issn_l":"0167-7055","issn":["0167-7055","1467-8659"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Graphics Forum","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1614903287","display_name":null,"funder_award_id":"U25A20440","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7590966053","display_name":null,"funder_award_id":"62472373","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W2099583675","https://openalex.org/W2133665775","https://openalex.org/W2135879701","https://openalex.org/W2140196014","https://openalex.org/W2891639355","https://openalex.org/W2981613960","https://openalex.org/W3106672182","https://openalex.org/W4236270562","https://openalex.org/W4312796583","https://openalex.org/W4312806968","https://openalex.org/W4385275578","https://openalex.org/W4386065641","https://openalex.org/W4406825414"],"related_works":[],"abstract_inverted_index":{"Abstract":[0],"To":[1],"address":[2],"the":[3,9,72],"storage":[4,56],"overhead":[5],"of":[6,11,58],"lightmaps":[7],"and":[8,35],"limitations":[10],"existing":[12,67],"compression":[13,20,76],"techniques,":[14],"we":[15,33],"propose":[16],"a":[17,30,40,44],"novel":[18],"UV\u2010space":[19],"framework":[21,77],"based":[22],"on":[23],"per\u2010triangle":[24],"processing.":[25],"By":[26],"mapping":[27],"triangles":[28],"to":[29],"standardized":[31],"domain,":[32],"cluster":[34],"repack":[36],"color\u2010coherent":[37],"regions":[38],"into":[39],"compact":[41],"atlas,":[42],"generating":[43],"cascade":[45],"texture":[46],"refined":[47],"via":[48],"differentiable":[49],"rendering.":[50],"Experimental":[51],"results":[52],"show":[53],"an":[54,84],"average":[55],"reduction":[57],"83%":[59],"with":[60,79],"approximately":[61],"10":[62],"dB":[63],"higher":[64],"PSNR":[65],"than":[66],"methods.":[68],"Our":[69],"approach":[70],"is":[71],"first":[73],"dedicated":[74],"lightmap":[75],"compatible":[78],"standard":[80],"block\u2010based":[81],"formats,":[82],"offering":[83],"effective":[85],"solution":[86],"for":[87],"memory\u2010efficient":[88],"3D":[89],"asset":[90],"delivery.":[91]},"counts_by_year":[],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2026-03-25T00:00:00"}
