{"id":"https://openalex.org/W2124391739","doi":"https://doi.org/10.1109/smi.2009.5170168","title":"Parts-based 2D shape decomposition by convex hull","display_name":"Parts-based 2D shape decomposition by convex hull","publication_year":2009,"publication_date":"2009-06-01","ids":{"openalex":"https://openalex.org/W2124391739","doi":"https://doi.org/10.1109/smi.2009.5170168","mag":"2124391739"},"language":"en","primary_location":{"id":"doi:10.1109/smi.2009.5170168","is_oa":false,"landing_page_url":"https://doi.org/10.1109/smi.2009.5170168","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Shape Modeling and Applications","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/A5011267367","display_name":"Lili Wan","orcid":"https://orcid.org/0000-0002-9520-5425"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Lili Wan","raw_affiliation_strings":["Institute of Information Science, Beijing Jiaotong University, Beijing, China","Institute of Information Science, Beijing Jiaotong University 100044, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Information Science, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]},{"raw_affiliation_string":"Institute of Information Science, Beijing Jiaotong University 100044, China","institution_ids":["https://openalex.org/I21193070"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5011267367"],"corresponding_institution_ids":["https://openalex.org/I21193070"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"89","last_page":"95"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10052","display_name":"Medical Image Segmentation Techniques","score":0.9977999925613403,"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/T10052","display_name":"Medical Image Segmentation Techniques","score":0.9977999925613403,"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/T12549","display_name":"Image and Object Detection Techniques","score":0.9954000115394592,"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":0.9934999942779541,"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/convex-hull","display_name":"Convex hull","score":0.7232071161270142},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.6391689777374268},{"id":"https://openalex.org/keywords/polygon","display_name":"Polygon (computer graphics)","score":0.6319215297698975},{"id":"https://openalex.org/keywords/shape-analysis","display_name":"Shape analysis (program analysis)","score":0.6102837920188904},{"id":"https://openalex.org/keywords/convex-polygon","display_name":"Convex polygon","score":0.5942721366882324},{"id":"https://openalex.org/keywords/visual-hull","display_name":"Visual hull","score":0.5307042002677917},{"id":"https://openalex.org/keywords/hull","display_name":"Hull","score":0.5281569957733154},{"id":"https://openalex.org/keywords/grasp","display_name":"GRASP","score":0.5105198621749878},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4964943528175354},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.47169020771980286},{"id":"https://openalex.org/keywords/invariant","display_name":"Invariant (physics)","score":0.46910911798477173},{"id":"https://openalex.org/keywords/line-segment","display_name":"Line segment","score":0.4396848678588867},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.4343757629394531},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4324645400047302},{"id":"https://openalex.org/keywords/boundary","display_name":"Boundary (topology)","score":0.4297717213630676},{"id":"https://openalex.org/keywords/decomposition","display_name":"Decomposition","score":0.4160420596599579},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3922390937805176},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.38093751668930054},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15287867188453674},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.1502891480922699},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.13791772723197937}],"concepts":[{"id":"https://openalex.org/C206194317","wikidata":"https://www.wikidata.org/wiki/Q1138624","display_name":"Convex hull","level":3,"score":0.7232071161270142},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.6391689777374268},{"id":"https://openalex.org/C190694206","wikidata":"https://www.wikidata.org/wiki/Q3276654","display_name":"Polygon (computer graphics)","level":3,"score":0.6319215297698975},{"id":"https://openalex.org/C112604564","wikidata":"https://www.wikidata.org/wiki/Q7489226","display_name":"Shape analysis (program analysis)","level":3,"score":0.6102837920188904},{"id":"https://openalex.org/C2780034980","wikidata":"https://www.wikidata.org/wiki/Q3259505","display_name":"Convex polygon","level":3,"score":0.5942721366882324},{"id":"https://openalex.org/C2776863239","wikidata":"https://www.wikidata.org/wiki/Q7936601","display_name":"Visual hull","level":3,"score":0.5307042002677917},{"id":"https://openalex.org/C37423430","wikidata":"https://www.wikidata.org/wiki/Q6750281","display_name":"Hull","level":2,"score":0.5281569957733154},{"id":"https://openalex.org/C171268870","wikidata":"https://www.wikidata.org/wiki/Q1486676","display_name":"GRASP","level":2,"score":0.5105198621749878},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4964943528175354},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.47169020771980286},{"id":"https://openalex.org/C190470478","wikidata":"https://www.wikidata.org/wiki/Q2370229","display_name":"Invariant (physics)","level":2,"score":0.46910911798477173},{"id":"https://openalex.org/C182124507","wikidata":"https://www.wikidata.org/wiki/Q166154","display_name":"Line segment","level":2,"score":0.4396848678588867},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.4343757629394531},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4324645400047302},{"id":"https://openalex.org/C62354387","wikidata":"https://www.wikidata.org/wiki/Q875399","display_name":"Boundary (topology)","level":2,"score":0.4297717213630676},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.4160420596599579},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3922390937805176},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.38093751668930054},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15287867188453674},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.1502891480922699},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.13791772723197937},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C97686452","wikidata":"https://www.wikidata.org/wiki/Q7604153","display_name":"Static analysis","level":2,"score":0.0},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","level":2,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C199104240","wikidata":"https://www.wikidata.org/wiki/Q118291","display_name":"Marine engineering","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/smi.2009.5170168","is_oa":false,"landing_page_url":"https://doi.org/10.1109/smi.2009.5170168","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Shape Modeling and Applications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.4099999964237213}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1501418839","https://openalex.org/W1637726711","https://openalex.org/W1963876471","https://openalex.org/W2004686460","https://openalex.org/W2090800226","https://openalex.org/W2099789128","https://openalex.org/W2116707521","https://openalex.org/W2124040105","https://openalex.org/W2153504150","https://openalex.org/W2155071165","https://openalex.org/W2156406284","https://openalex.org/W2202245204","https://openalex.org/W2202770087","https://openalex.org/W4234899042","https://openalex.org/W6636669283"],"related_works":["https://openalex.org/W2348369241","https://openalex.org/W2981019968","https://openalex.org/W2935872488","https://openalex.org/W2810915225","https://openalex.org/W2255428984","https://openalex.org/W4285782227","https://openalex.org/W2393518966","https://openalex.org/W29331208","https://openalex.org/W66858739","https://openalex.org/W2124391739"],"abstract_inverted_index":{"Parts-based":[0],"2D":[1,63,68,76],"shape":[2,7,39,64],"decomposition":[3,136],"is":[4,35,87,111],"important":[5,37],"to":[6,23,38,88],"analysis":[8],"and":[9,60,84,97,120],"recognition.":[10],"Much":[11],"research":[12],"in":[13,79,138,148],"psychology":[14],"has":[15,44,163],"shown":[16],"that":[17,160],"the":[18,94,114,124,149],"human":[19],"visual":[20],"system":[21],"tends":[22],"segment":[24],"complex":[25],"objects":[26],"at":[27],"regions":[28],"of":[29,93,116,140,145],"deep":[30],"concavities,":[31,142],"so":[32],"concavity":[33],"measurement":[34],"very":[36],"decompositions,":[40],"but":[41],"it":[42],"still":[43],"not":[45],"a":[46,55,62,135,154],"well":[47],"accepted":[48],"definition.":[49],"In":[50],"this":[51],"paper,":[52],"we":[53,133],"propose":[54],"method":[56,137],"for":[57,74,106],"measuring":[58],"concavities":[59],"segmenting":[61],"without":[65],"holes":[66],"by":[67,126,153],"convex":[69,77,155],"hulls.":[70],"The":[71],"primary":[72],"motivation":[73],"using":[75],"hull":[78],"our":[80,161],"SLA-concavity":[81,110],"(straight":[82],"line":[83],"angle":[85],"concavity)":[86],"grasp":[89],"global":[90],"variation":[91],"trends":[92],"polygon":[95,125],"boundary,":[96],"furthermore,":[98],"determine":[99],"concave":[100],"vertexes":[101,147],"before":[102],"computing":[103],"interior":[104],"angles":[105],"representing":[107],"local":[108],"attribute.":[109],"invariant":[112],"despite":[113],"presence":[115],"arbitrary":[117],"translations,":[118],"rotations":[119],"scales":[121],"after":[122],"normalizing":[123],"its":[127],"area.":[128],"For":[129],"dealing":[130],"with":[131],"over-segmentation,":[132],"introduce":[134],"order":[139],"decreasing":[141],"avoiding":[143],"connection":[144],"two":[146],"same":[150],"pocket":[151],"generated":[152],"hull.":[156],"Experimental":[157],"results":[158],"show":[159],"approach":[162],"good":[164],"performance.":[165]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
