{"id":"https://openalex.org/W7167032892","doi":"https://doi.org/10.3390/ijgi15070300","title":"From Point Clouds to Coherent Rooms: A Topology-Driven Approach for Indoor Space Subdivision","display_name":"From Point Clouds to Coherent Rooms: A Topology-Driven Approach for Indoor Space Subdivision","publication_year":2026,"publication_date":"2026-07-02","ids":{"openalex":"https://openalex.org/W7167032892","doi":"https://doi.org/10.3390/ijgi15070300"},"language":"en","primary_location":{"id":"doi:10.3390/ijgi15070300","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi15070300","pdf_url":null,"source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.3390/ijgi15070300","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112420833","display_name":"Yining Cui","orcid":null},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yining Cui","raw_affiliation_strings":["School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087991870","display_name":"Ying Zuo","orcid":null},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ying Zuo","raw_affiliation_strings":["School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100412846","display_name":"Lin Li","orcid":"https://orcid.org/0000-0002-2034-982X"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lin Li","raw_affiliation_strings":["School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China"],"raw_orcid":"https://orcid.org/0000-0002-2034-982X","affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057106714","display_name":"Yukun Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yukun Wu","raw_affiliation_strings":["School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101920570","display_name":"Haihong Zhu","orcid":"https://orcid.org/0000-0003-2503-0700"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Haihong Zhu","raw_affiliation_strings":["School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences, Wuhan University, 129 Luoyu Road, Wuhan 430079, China","institution_ids":["https://openalex.org/I37461747"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101920570"],"corresponding_institution_ids":["https://openalex.org/I37461747"],"apc_list":{"value":1900,"currency":"CHF","value_usd":2292},"apc_paid":{"value":1900,"currency":"CHF","value_usd":2292},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.66592816,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":"7","first_page":"300","last_page":"300"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.3547999858856201,"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/T10719","display_name":"3D Shape Modeling and Analysis","score":0.3547999858856201,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.23399999737739563,"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"}},{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.10189999639987946,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/subdivision","display_name":"Subdivision","score":0.8345000147819519},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.5853999853134155},{"id":"https://openalex.org/keywords/boundary","display_name":"Boundary (topology)","score":0.550000011920929},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.545199990272522},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.4885999858379364},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.47530001401901245},{"id":"https://openalex.org/keywords/perspective","display_name":"Perspective (graphical)","score":0.4629000127315521},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.44359999895095825}],"concepts":[{"id":"https://openalex.org/C143392562","wikidata":"https://www.wikidata.org/wiki/Q449111","display_name":"Subdivision","level":2,"score":0.8345000147819519},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5946999788284302},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.5853999853134155},{"id":"https://openalex.org/C62354387","wikidata":"https://www.wikidata.org/wiki/Q875399","display_name":"Boundary (topology)","level":2,"score":0.550000011920929},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.545199990272522},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.4885999858379364},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.47530001401901245},{"id":"https://openalex.org/C12713177","wikidata":"https://www.wikidata.org/wiki/Q1900281","display_name":"Perspective (graphical)","level":2,"score":0.4629000127315521},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.44359999895095825},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34619998931884766},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3409999907016754},{"id":"https://openalex.org/C199686383","wikidata":"https://www.wikidata.org/wiki/Q1529124","display_name":"Subdivision surface","level":3,"score":0.31459999084472656},{"id":"https://openalex.org/C104065381","wikidata":"https://www.wikidata.org/wiki/Q1002535","display_name":"Geometric modeling","level":2,"score":0.31200000643730164},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.302700012922287},{"id":"https://openalex.org/C199538142","wikidata":"https://www.wikidata.org/wiki/Q573980","display_name":"Topological map","level":4,"score":0.30090001225471497},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.2831000089645386},{"id":"https://openalex.org/C13670688","wikidata":"https://www.wikidata.org/wiki/Q3500548","display_name":"Space partitioning","level":2,"score":0.2678000032901764},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.26570001244544983},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.2572000026702881},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.25600001215934753},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.2531000077724457},{"id":"https://openalex.org/C2776477805","wikidata":"https://www.wikidata.org/wiki/Q4460773","display_name":"Topological data analysis","level":2,"score":0.25290000438690186},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.25110000371932983}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/ijgi15070300","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi15070300","pdf_url":null,"source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:e4d7aad2747541a8bea8c578a7dc7c2c","is_oa":false,"landing_page_url":"https://doaj.org/article/e4d7aad2747541a8bea8c578a7dc7c2c","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISPRS International Journal of Geo-Information, Vol 15, Iss 7, p 300 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/ijgi15070300","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi15070300","pdf_url":null,"source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11","score":0.7638267874717712}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W2069693438","https://openalex.org/W2106854527","https://openalex.org/W2112825566","https://openalex.org/W2572668347","https://openalex.org/W2621534427","https://openalex.org/W2727595074","https://openalex.org/W2753445124","https://openalex.org/W2760434108","https://openalex.org/W2772767844","https://openalex.org/W2775610217","https://openalex.org/W2800336479","https://openalex.org/W2805145905","https://openalex.org/W2885457411","https://openalex.org/W2891284484","https://openalex.org/W2899927845","https://openalex.org/W2901615547","https://openalex.org/W2905662756","https://openalex.org/W3006564979","https://openalex.org/W3009156864","https://openalex.org/W3009735757","https://openalex.org/W3083637823","https://openalex.org/W3131594276","https://openalex.org/W3136460340","https://openalex.org/W3163552336","https://openalex.org/W3176366763","https://openalex.org/W3204718685","https://openalex.org/W3208930086","https://openalex.org/W3213470404","https://openalex.org/W3215313116","https://openalex.org/W3216207842","https://openalex.org/W4207078053","https://openalex.org/W4283452255","https://openalex.org/W4295935090","https://openalex.org/W4306394309","https://openalex.org/W4306836062","https://openalex.org/W4308327081","https://openalex.org/W4318485934","https://openalex.org/W4383748838","https://openalex.org/W4386066523","https://openalex.org/W4386546926","https://openalex.org/W4387097209","https://openalex.org/W4387706660","https://openalex.org/W4394600007","https://openalex.org/W4400532043","https://openalex.org/W4401451055","https://openalex.org/W4402618772","https://openalex.org/W4404905527","https://openalex.org/W4415078079","https://openalex.org/W4416010421"],"related_works":[],"abstract_inverted_index":{"Modern":[0],"indoor":[1,64,205],"spaces":[2],"increasingly":[3],"contain":[4],"curved":[5],"walls,":[6],"slanted":[7],"surfaces,":[8],"nested":[9],"rooms":[10],"and":[11,26,48,87,96,141,155,169,184],"other":[12],"non-Manhattan":[13,170,210],"structures,":[14],"making":[15],"room-level":[16,164],"subdivision":[17,66,207],"from":[18,104],"3D":[19],"point":[20],"clouds":[21],"challenging.":[22],"Existing":[23],"projection-based,":[24],"primitive-based":[25],"semantic":[27],"methods":[28],"often":[29],"rely":[30],"on":[31,153],"Manhattan":[32,168],"assumptions,":[33],"explicit":[34],"structural":[35],"labels":[36],"or":[37,176],"local":[38,105],"geometric":[39,106,178],"heuristics,":[40],"which":[41],"may":[42],"lead":[43],"to":[44,79],"fragmented":[45],"spatial":[46,129,192],"units":[47],"unstable":[49],"boundaries":[50],"in":[51,189,208],"complex":[52,209],"scenes.":[53,171],"Here,":[54],"we":[55],"propose":[56],"a":[57,72,82,199],"topology-driven":[58],"voxel":[59],"partitioning":[60,101],"framework":[61,197],"that":[62,159],"reformulates":[63],"space":[65,85,102,206],"as":[67,118],"controlled":[68],"connectivity":[69],"disconnection":[70],"within":[71,138],"topological":[73,97,116,201],"closure.":[74],"The":[75],"central":[76],"idea":[77],"is":[78],"first":[80],"construct":[81],"closed":[83],"voxelated":[84],"domain":[86],"then":[88],"selectively":[89],"disconnect":[90],"it":[91],"at":[92],"near":[93],"functional":[94],"openings":[95],"bottlenecks,":[98],"rather":[99],"than":[100],"only":[103],"cues.":[107],"Within":[108],"this":[109],"framework,":[110],"classical":[111],"operations":[112],"are":[113],"reorganized":[114],"under":[115],"constraints":[117],"follows:":[119],"adaptive":[120],"region":[121],"growing":[122],"with":[123,173],"aperture-sensitive":[124],"spherical":[125],"kernels":[126],"generates":[127],"initial":[128],"units,":[130],"boundary-anisotropic":[131],"watershed":[132],"completion":[133],"restores":[134],"unlabeled":[135],"boundary":[136],"regions":[137],"interior":[139],"domain,":[140],"label":[142],"reassignment":[143],"regularizes":[144],"shared":[145],"interfaces":[146],"by":[147],"minimizing":[148],"discrete":[149],"contact":[150],"areas.":[151],"Experiments":[152],"real-world":[154],"synthetic":[156],"datasets":[157],"show":[158],"the":[160,195],"method":[161],"produces":[162],"stable":[163],"subdivisions":[165],"across":[166],"most":[167],"Cases":[172],"narrow":[174],"bottlenecks":[175],"abrupt":[177],"narrowing":[179],"still":[180],"reduce":[181],"detection-level":[182],"precision":[183],"recall,":[185],"indicating":[186],"remaining":[187],"limitations":[188],"highly":[190],"constrained":[191],"configurations.":[193],"Overall,":[194],"proposed":[196],"offers":[198],"useful":[200],"modeling":[202],"perspective":[203],"for":[204],"environments.":[211]},"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2026-07-03T00:00:00"}
