{"id":"https://openalex.org/W2144196460","doi":"https://doi.org/10.1109/tim.2009.2016879","title":"Terrain and Model Queries Using Scalar Representations With Wavelet Compression","display_name":"Terrain and Model Queries Using Scalar Representations With Wavelet Compression","publication_year":2009,"publication_date":"2009-06-10","ids":{"openalex":"https://openalex.org/W2144196460","doi":"https://doi.org/10.1109/tim.2009.2016879","mag":"2144196460"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2009.2016879","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2009.2016879","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","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":"https://openalex.org/A5011974810","display_name":"Christoph F\u00fcnfzig","orcid":"https://orcid.org/0000-0003-4192-0105"},"institutions":[{"id":"https://openalex.org/I70348806","display_name":"Universit\u00e9 Polytechnique Hauts-de-France","ror":"https://ror.org/02ezch769","country_code":"FR","type":"education","lineage":["https://openalex.org/I70348806"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"C. Funfzig","raw_affiliation_strings":["Universite Valenciennes et du Hainaut-Cambr\u00e9sis, Valenciennes, France","CAGD Group, Univ. Valenciennes et du Hainaut- Cambresis, Valenciennes, France"],"affiliations":[{"raw_affiliation_string":"Universite Valenciennes et du Hainaut-Cambr\u00e9sis, Valenciennes, France","institution_ids":["https://openalex.org/I70348806"]},{"raw_affiliation_string":"CAGD Group, Univ. Valenciennes et du Hainaut- Cambresis, Valenciennes, France","institution_ids":["https://openalex.org/I70348806"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079508774","display_name":"Torsten Ullrich","orcid":"https://orcid.org/0000-0002-7866-9762"},"institutions":[{"id":"https://openalex.org/I4092182","display_name":"Graz University of Technology","ror":"https://ror.org/00d7xrm67","country_code":"AT","type":"education","lineage":["https://openalex.org/I4092182"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"T. Ullrich","raw_affiliation_strings":["Institute of Computer Graphics and Knowledge Visualization, Graz University of Technology, Graz, Austria","Institute of Computer Graphics and Knowledge Visualization, Graz University of Technology, Graz, Austria#TAB#"],"affiliations":[{"raw_affiliation_string":"Institute of Computer Graphics and Knowledge Visualization, Graz University of Technology, Graz, Austria","institution_ids":["https://openalex.org/I4092182"]},{"raw_affiliation_string":"Institute of Computer Graphics and Knowledge Visualization, Graz University of Technology, Graz, Austria#TAB#","institution_ids":["https://openalex.org/I4092182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070772234","display_name":"Dieter W. Fellner","orcid":"https://orcid.org/0000-0001-7756-0901"},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"D.W. Fellner","raw_affiliation_strings":["Department of Graphisch-Interaktive Systeme (GRIS), Darmstadt University of Technology, Darmstadt, Germany","[Department of Graphisch-Interaktive Systeme (GRIS), Darmstadt University of Technology, Darmstadt, Germany]"],"affiliations":[{"raw_affiliation_string":"Department of Graphisch-Interaktive Systeme (GRIS), Darmstadt University of Technology, Darmstadt, Germany","institution_ids":["https://openalex.org/I31512782"]},{"raw_affiliation_string":"[Department of Graphisch-Interaktive Systeme (GRIS), Darmstadt University of Technology, Darmstadt, Germany]","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110247637","display_name":"Edward Bachelder","orcid":null},"institutions":[{"id":"https://openalex.org/I4210143979","display_name":"Systems Technology (United States)","ror":"https://ror.org/04cv8g472","country_code":"US","type":"company","lineage":["https://openalex.org/I4210143979"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E.N. Bachelder","raw_affiliation_strings":["Systems and Technologies, Inc., Hawthorne, CA, USA","[Systems and Technologies, Inc., Hawthorne, CA, USA]"],"affiliations":[{"raw_affiliation_string":"Systems and Technologies, Inc., Hawthorne, CA, USA","institution_ids":["https://openalex.org/I4210143979"]},{"raw_affiliation_string":"[Systems and Technologies, Inc., Hawthorne, CA, USA]","institution_ids":["https://openalex.org/I4210143979"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5011974810"],"corresponding_institution_ids":["https://openalex.org/I70348806"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.18436236,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"58","issue":"9","first_page":"3086","last_page":"3093"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11106","display_name":"Data Management and Algorithms","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9853000044822693,"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9819999933242798,"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/wavelet","display_name":"Wavelet","score":0.6901648044586182},{"id":"https://openalex.org/keywords/pyramid","display_name":"Pyramid (geometry)","score":0.5558411478996277},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.5287463665008545},{"id":"https://openalex.org/keywords/terrain","display_name":"Terrain","score":0.49872255325317383},{"id":"https://openalex.org/keywords/collision-detection","display_name":"Collision detection","score":0.4968588650226593},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4839511215686798},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46794620156288147},{"id":"https://openalex.org/keywords/scalar","display_name":"Scalar (mathematics)","score":0.45702171325683594},{"id":"https://openalex.org/keywords/quadtree","display_name":"Quadtree","score":0.4305429458618164},{"id":"https://openalex.org/keywords/collision","display_name":"Collision","score":0.4281376600265503},{"id":"https://openalex.org/keywords/data-structure","display_name":"Data structure","score":0.4248213768005371},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.42176204919815063},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4147356450557709},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.21088263392448425},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15641558170318604},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.07980859279632568}],"concepts":[{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.6901648044586182},{"id":"https://openalex.org/C142575187","wikidata":"https://www.wikidata.org/wiki/Q3358290","display_name":"Pyramid (geometry)","level":2,"score":0.5558411478996277},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.5287463665008545},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.49872255325317383},{"id":"https://openalex.org/C199668693","wikidata":"https://www.wikidata.org/wiki/Q1550329","display_name":"Collision detection","level":3,"score":0.4968588650226593},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4839511215686798},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46794620156288147},{"id":"https://openalex.org/C57691317","wikidata":"https://www.wikidata.org/wiki/Q1289248","display_name":"Scalar (mathematics)","level":2,"score":0.45702171325683594},{"id":"https://openalex.org/C151416825","wikidata":"https://www.wikidata.org/wiki/Q934791","display_name":"Quadtree","level":2,"score":0.4305429458618164},{"id":"https://openalex.org/C121704057","wikidata":"https://www.wikidata.org/wiki/Q352070","display_name":"Collision","level":2,"score":0.4281376600265503},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.4248213768005371},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.42176204919815063},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4147356450557709},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.21088263392448425},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15641558170318604},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.07980859279632568},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","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}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/tim.2009.2016879","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2009.2016879","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","raw_type":"journal-article"},{"id":"pmh:oai:fraunhofer.de:N-137528","is_oa":false,"landing_page_url":"http://publica.fraunhofer.de/documents/N-137528.html","pdf_url":null,"source":{"id":"https://openalex.org/S4306400801","display_name":"Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4923324","host_organization_name":"Fraunhofer-Gesellschaft","host_organization_lineage":["https://openalex.org/I4923324"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Fraunhofer IGD","raw_type":"Journal Article"},{"id":"pmh:oai:publica.fraunhofer.de:publica/220472","is_oa":false,"landing_page_url":"https://publica.fraunhofer.de/handle/publica/220472","pdf_url":null,"source":{"id":"https://openalex.org/S4306400318","display_name":"Fraunhofer-Publica (Fraunhofer-Gesellschaft)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4923324","host_organization_name":"Fraunhofer-Gesellschaft","host_organization_lineage":["https://openalex.org/I4923324"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"journal article"},{"id":"pmh:oai:tubiblio.ulb.tu-darmstadt.de:109609","is_oa":false,"landing_page_url":"http://tubiblio.ulb.tu-darmstadt.de/109609/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196390","display_name":"TUbilio (Technical University of Darmstadt)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I31512782","host_organization_name":"Technische Universit\u00e4t Darmstadt","host_organization_lineage":["https://openalex.org/I31512782"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Artikel"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":40,"referenced_works":["https://openalex.org/W105226629","https://openalex.org/W121010820","https://openalex.org/W281357932","https://openalex.org/W1537723813","https://openalex.org/W1544999158","https://openalex.org/W1566274311","https://openalex.org/W1566989922","https://openalex.org/W1593722297","https://openalex.org/W1990733988","https://openalex.org/W1999117959","https://openalex.org/W1999250663","https://openalex.org/W2033849809","https://openalex.org/W2048049572","https://openalex.org/W2048246441","https://openalex.org/W2055354539","https://openalex.org/W2076946078","https://openalex.org/W2101377699","https://openalex.org/W2117295746","https://openalex.org/W2119984419","https://openalex.org/W2121557370","https://openalex.org/W2127794343","https://openalex.org/W2142462659","https://openalex.org/W2145910025","https://openalex.org/W2150275728","https://openalex.org/W2155672182","https://openalex.org/W2162677913","https://openalex.org/W2165558283","https://openalex.org/W2170023599","https://openalex.org/W2237767100","https://openalex.org/W2611148395","https://openalex.org/W3139096237","https://openalex.org/W4244144430","https://openalex.org/W4251846887","https://openalex.org/W4252017042","https://openalex.org/W6604293480","https://openalex.org/W6632194064","https://openalex.org/W6632557264","https://openalex.org/W6633852383","https://openalex.org/W6635617717","https://openalex.org/W6677702289"],"related_works":["https://openalex.org/W4253586140","https://openalex.org/W2156889353","https://openalex.org/W2949856845","https://openalex.org/W2105246008","https://openalex.org/W2169751639","https://openalex.org/W97492882","https://openalex.org/W2133841619","https://openalex.org/W4205566295","https://openalex.org/W1984342875","https://openalex.org/W2155672182"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,67,86,98],"present":[4],"efficient":[5],"height/distance":[6,35],"field":[7,36],"data":[8,24],"structures":[9],"for":[10,74],"line-of-sight":[11],"(LOS)":[12],"queries":[13,18,123],"on":[14,19],"terrains":[15],"and":[16,41,63,119],"collision":[17,110,121],"arbitrary":[20,120],"3-D":[21],"models.":[22],"The":[23,50],"structure":[25],"uses":[26],"a":[27,57,77,89,105,109],"pyramid":[28,51],"of":[29,108],"quad-shaped":[30],"regions":[31,75],"with":[32,88],"the":[33,38,47,93,101],"original":[34],"at":[37,46],"highest":[39],"level":[40],"an":[42],"overall":[43],"minimum/maximum":[44,72],"value":[45],"lower":[48],"levels.":[49],"can":[52,124],"compactly":[53],"be":[54,126],"stored":[55],"in":[56,76],"wavelet-like":[58,115],"decomposition":[59,79],"but":[60],"using":[61,80],"max":[62],"plus":[64],"operations.":[65],"Additionally,":[66],"show":[68,99],"how":[69],"to":[70],"get":[71],"values":[73],"wavelet":[78],"real":[81],"algebra.":[82],"For":[83],"LOS":[84,102],"calculations,":[85],"compare":[87],"kd-tree":[90],"representation":[91],"containing":[92],"maximum":[94],"height":[95],"values.":[96],"Furthermore,":[97],"that":[100],"calculation":[103],"is":[104],"special":[106],"case":[107],"detection":[111,122],"query.":[112],"Using":[113],"our":[114],"approach,":[116],"even":[117],"general":[118],"efficiently":[125],"answered.":[127]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}