{"id":"https://openalex.org/W2031340511","doi":"https://doi.org/10.1145/1980462.1980476","title":"Accelerated entry point search algorithm for real-time ray-tracing","display_name":"Accelerated entry point search algorithm for real-time ray-tracing","publication_year":2009,"publication_date":"2009-04-23","ids":{"openalex":"https://openalex.org/W2031340511","doi":"https://doi.org/10.1145/1980462.1980476","mag":"2031340511"},"language":"en","primary_location":{"id":"doi:10.1145/1980462.1980476","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1980462.1980476","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 25th Spring Conference on Computer Graphics","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/2262/27826","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5114043168","display_name":"Colin Fowler","orcid":null},"institutions":[{"id":"https://openalex.org/I205274468","display_name":"Trinity College Dublin","ror":"https://ror.org/02tyrky19","country_code":"IE","type":"education","lineage":["https://openalex.org/I205274468"]}],"countries":["IE"],"is_corresponding":true,"raw_author_name":"Colin Fowler","raw_affiliation_strings":["Trinity College Dublin"],"affiliations":[{"raw_affiliation_string":"Trinity College Dublin","institution_ids":["https://openalex.org/I205274468"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110452602","display_name":"Steven Collins","orcid":null},"institutions":[{"id":"https://openalex.org/I205274468","display_name":"Trinity College Dublin","ror":"https://ror.org/02tyrky19","country_code":"IE","type":"education","lineage":["https://openalex.org/I205274468"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"Steven Collins","raw_affiliation_strings":["Trinity College Dublin"],"affiliations":[{"raw_affiliation_string":"Trinity College Dublin","institution_ids":["https://openalex.org/I205274468"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5074373746","display_name":"Michael Manzke","orcid":"https://orcid.org/0000-0002-2183-8318"},"institutions":[{"id":"https://openalex.org/I205274468","display_name":"Trinity College Dublin","ror":"https://ror.org/02tyrky19","country_code":"IE","type":"education","lineage":["https://openalex.org/I205274468"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"Michael Manzke","raw_affiliation_strings":["Trinity College Dublin"],"affiliations":[{"raw_affiliation_string":"Trinity College Dublin","institution_ids":["https://openalex.org/I205274468"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5114043168"],"corresponding_institution_ids":["https://openalex.org/I205274468"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.10642281,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"59","last_page":"66"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9998000264167786,"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":0.9998000264167786,"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/T10531","display_name":"Advanced Vision and Imaging","score":0.996999979019165,"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/T11439","display_name":"Video Analysis and Summarization","score":0.9898999929428101,"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/tree-traversal","display_name":"Tree traversal","score":0.8554428815841675},{"id":"https://openalex.org/keywords/traverse","display_name":"Traverse","score":0.7258571982383728},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7065017819404602},{"id":"https://openalex.org/keywords/tracing","display_name":"Tracing","score":0.6745834946632385},{"id":"https://openalex.org/keywords/ray-tracing","display_name":"Ray tracing (physics)","score":0.6273531913757324},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5921618342399597},{"id":"https://openalex.org/keywords/bounding-volume","display_name":"Bounding volume","score":0.5919452905654907},{"id":"https://openalex.org/keywords/bounding-overwatch","display_name":"Bounding overwatch","score":0.5582587718963623},{"id":"https://openalex.org/keywords/beam-tracing","display_name":"Beam tracing","score":0.5353819131851196},{"id":"https://openalex.org/keywords/acceleration","display_name":"Acceleration","score":0.5109471678733826},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.48898518085479736},{"id":"https://openalex.org/keywords/k-d-tree","display_name":"k-d tree","score":0.42078298330307007},{"id":"https://openalex.org/keywords/distributed-ray-tracing","display_name":"Distributed ray tracing","score":0.2768016457557678},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19679725170135498},{"id":"https://openalex.org/keywords/collision-detection","display_name":"Collision detection","score":0.15254363417625427},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.1444064974784851},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11144348978996277},{"id":"https://openalex.org/keywords/collision","display_name":"Collision","score":0.10777097940444946}],"concepts":[{"id":"https://openalex.org/C140745168","wikidata":"https://www.wikidata.org/wiki/Q1210082","display_name":"Tree traversal","level":2,"score":0.8554428815841675},{"id":"https://openalex.org/C176809094","wikidata":"https://www.wikidata.org/wiki/Q15401496","display_name":"Traverse","level":2,"score":0.7258571982383728},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7065017819404602},{"id":"https://openalex.org/C138673069","wikidata":"https://www.wikidata.org/wiki/Q322229","display_name":"Tracing","level":2,"score":0.6745834946632385},{"id":"https://openalex.org/C121483023","wikidata":"https://www.wikidata.org/wiki/Q7298343","display_name":"Ray tracing (physics)","level":2,"score":0.6273531913757324},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5921618342399597},{"id":"https://openalex.org/C184585634","wikidata":"https://www.wikidata.org/wiki/Q1434060","display_name":"Bounding volume","level":4,"score":0.5919452905654907},{"id":"https://openalex.org/C63584917","wikidata":"https://www.wikidata.org/wiki/Q333286","display_name":"Bounding overwatch","level":2,"score":0.5582587718963623},{"id":"https://openalex.org/C124692087","wikidata":"https://www.wikidata.org/wiki/Q4876194","display_name":"Beam tracing","level":4,"score":0.5353819131851196},{"id":"https://openalex.org/C117896860","wikidata":"https://www.wikidata.org/wiki/Q11376","display_name":"Acceleration","level":2,"score":0.5109471678733826},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.48898518085479736},{"id":"https://openalex.org/C33721204","wikidata":"https://www.wikidata.org/wiki/Q309949","display_name":"k-d tree","level":3,"score":0.42078298330307007},{"id":"https://openalex.org/C82744980","wikidata":"https://www.wikidata.org/wiki/Q951513","display_name":"Distributed ray tracing","level":3,"score":0.2768016457557678},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19679725170135498},{"id":"https://openalex.org/C199668693","wikidata":"https://www.wikidata.org/wiki/Q1550329","display_name":"Collision detection","level":3,"score":0.15254363417625427},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.1444064974784851},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11144348978996277},{"id":"https://openalex.org/C121704057","wikidata":"https://www.wikidata.org/wiki/Q352070","display_name":"Collision","level":2,"score":0.10777097940444946},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.0},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/1980462.1980476","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1980462.1980476","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 25th Spring Conference on Computer Graphics","raw_type":"proceedings-article"},{"id":"pmh:http://www.rian.ie/93355/","is_oa":true,"landing_page_url":"http://hdl.handle.net/2262/27826","pdf_url":null,"source":{"id":"https://openalex.org/S4306400033","display_name":"Arrow@dit (Dublin Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I115570527","host_organization_name":"Dublin Institute of Technology","host_organization_lineage":["https://openalex.org/I115570527"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Colin Fowler, Michael Manzke, Steven Collins, Accelerated Entry Point Search Algorithm for Real Time Ray Tracing, Spring Conference on Computer Graphics, Slovakia, April 25th 2009, 2009, 29, 37","raw_type":"Conference item"},{"id":"pmh:oai:tara.tcd.ie:2262/27826","is_oa":false,"landing_page_url":"http://people.tcd.ie/fowlerc","pdf_url":null,"source":{"id":"https://openalex.org/S4306400387","display_name":"Trinity's Access to Research Output (TARA) (Trinity College Dublin)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205274468","host_organization_name":"Trinity College Dublin","host_organization_lineage":["https://openalex.org/I205274468"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference Paper"}],"best_oa_location":{"id":"pmh:http://www.rian.ie/93355/","is_oa":true,"landing_page_url":"http://hdl.handle.net/2262/27826","pdf_url":null,"source":{"id":"https://openalex.org/S4306400033","display_name":"Arrow@dit (Dublin Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I115570527","host_organization_name":"Dublin Institute of Technology","host_organization_lineage":["https://openalex.org/I115570527"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Colin Fowler, Michael Manzke, Steven Collins, Accelerated Entry Point Search Algorithm for Real Time Ray Tracing, Spring Conference on Computer Graphics, Slovakia, April 25th 2009, 2009, 29, 37","raw_type":"Conference item"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320307102","display_name":"Intel Corporation","ror":"https://ror.org/01ek73717"},{"id":"https://openalex.org/F4320321056","display_name":"Irish Research Council","ror":"https://ror.org/051xex213"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W15755586","https://openalex.org/W1485842898","https://openalex.org/W1487859867","https://openalex.org/W1508638970","https://openalex.org/W1558931212","https://openalex.org/W1586564288","https://openalex.org/W1928435495","https://openalex.org/W1982661771","https://openalex.org/W1992446696","https://openalex.org/W1993572304","https://openalex.org/W2000697206","https://openalex.org/W2001100395","https://openalex.org/W2062604373","https://openalex.org/W2083126079","https://openalex.org/W2103185791","https://openalex.org/W2117808759","https://openalex.org/W2129005393","https://openalex.org/W2152365613","https://openalex.org/W2173197174","https://openalex.org/W2173672816","https://openalex.org/W2203968076","https://openalex.org/W2204533567","https://openalex.org/W2537111989","https://openalex.org/W4236267539","https://openalex.org/W4238837424","https://openalex.org/W7038215716"],"related_works":["https://openalex.org/W2790684390","https://openalex.org/W2543239617","https://openalex.org/W4360902251","https://openalex.org/W1972760111","https://openalex.org/W2062694272","https://openalex.org/W2106826488","https://openalex.org/W3158754996","https://openalex.org/W2559338234","https://openalex.org/W4225919742","https://openalex.org/W2378494049"],"abstract_inverted_index":{"Traversing":[0],"an":[1,67,78,93],"acceleration":[2,46],"data":[3,47],"structure,":[4],"such":[5],"as":[6],"the":[7,18,74],"Bounding":[8],"Volume":[9],"Hierarchy":[10],"or":[11],"kD-tree,":[12],"takes":[13],"a":[14,23,31,60],"significant":[15],"amount":[16],"of":[17,87,99],"total":[19],"time":[20,71],"to":[21,51,59,72,101,117],"render":[22],"frame":[24],"in":[25,43,49,70,80,95],"real-time":[26,89],"ray":[27],"tracing.":[28],"We":[29],"present":[30],"two":[32],"phase":[33],"algorithm":[34,58],"based":[35],"upon":[36],"MLRTA":[37,62],"for":[38],"finding":[39],"deep":[40],"entry":[41,75,81],"points":[42],"these":[44],"tree":[45],"structures":[48],"order":[50],"speed":[52],"up":[53,100],"traversal.":[54],"\\n\\nWe":[55],"compare":[56],"this":[57],"base":[61],"implementation.":[63],"Our":[64],"results":[65],"indicate":[66],"across-the-board":[68],"decrease":[69],"find":[73],"point":[76,82],"and":[77,105,113,120],"increase":[79,94],"depth.":[83],"The":[84,109],"overall":[85],"performance":[86],"our":[88],"ray-tracing":[90],"system":[91],"shows":[92],"frames":[96],"per":[97],"second":[98],"36%":[102],"over":[103,107],"packet-tracing":[104],"18%":[106],"MLRTA.":[108],"improvement":[110],"is":[111,114],"algorithmic":[112],"therefore":[115],"applicable":[116],"all":[118],"architectures":[119],"implementations.":[121]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}