{"id":"https://openalex.org/W2169284103","doi":"https://doi.org/10.1109/acc.2009.5160177","title":"Estimation of an affine motion","display_name":"Estimation of an affine motion","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W2169284103","doi":"https://doi.org/10.1109/acc.2009.5160177","mag":"2169284103"},"language":"en","primary_location":{"id":"doi:10.1109/acc.2009.5160177","is_oa":false,"landing_page_url":"https://doi.org/10.1109/acc.2009.5160177","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 American Control Conference","raw_type":"proceedings-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/A5101105149","display_name":"Lili Ma","orcid":"https://orcid.org/0000-0003-2892-7257"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Lili Ma","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055115724","display_name":"Chengyu Cao","orcid":"https://orcid.org/0000-0001-7793-618X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chengyu Cao","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029998748","display_name":"Naira Hovakimyan","orcid":"https://orcid.org/0000-0003-3850-1073"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Naira Hovakimyan","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025725331","display_name":"Craig A. Woolsey","orcid":"https://orcid.org/0000-0003-3483-7135"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Craig Woolsey","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5050664552","display_name":"Guoqiang Hu","orcid":"https://orcid.org/0000-0002-8618-5581"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Guoqiang Hu","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101105149"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.20985431,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"5085","last_page":"5090"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":1.0,"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/T10531","display_name":"Advanced Vision and Imaging","score":1.0,"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/T13114","display_name":"Image Processing Techniques and Applications","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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":0.9980000257492065,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/affine-transformation","display_name":"Affine transformation","score":0.7208818197250366},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6997725963592529},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.6584692001342773},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6382248997688293},{"id":"https://openalex.org/keywords/motion-estimation","display_name":"Motion estimation","score":0.5946140289306641},{"id":"https://openalex.org/keywords/camera-auto-calibration","display_name":"Camera auto-calibration","score":0.5721287131309509},{"id":"https://openalex.org/keywords/motion-field","display_name":"Motion field","score":0.51528000831604},{"id":"https://openalex.org/keywords/observer","display_name":"Observer (physics)","score":0.47196993231773376},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4611940383911133},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4461199939250946},{"id":"https://openalex.org/keywords/structure-from-motion","display_name":"Structure from motion","score":0.43824443221092224},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.41342049837112427},{"id":"https://openalex.org/keywords/camera-resectioning","display_name":"Camera resectioning","score":0.3216974139213562},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.10901382565498352},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0761401355266571}],"concepts":[{"id":"https://openalex.org/C92757383","wikidata":"https://www.wikidata.org/wiki/Q382497","display_name":"Affine transformation","level":2,"score":0.7208818197250366},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6997725963592529},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.6584692001342773},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6382248997688293},{"id":"https://openalex.org/C10161872","wikidata":"https://www.wikidata.org/wiki/Q557891","display_name":"Motion estimation","level":2,"score":0.5946140289306641},{"id":"https://openalex.org/C94816000","wikidata":"https://www.wikidata.org/wiki/Q5026006","display_name":"Camera auto-calibration","level":3,"score":0.5721287131309509},{"id":"https://openalex.org/C124774092","wikidata":"https://www.wikidata.org/wiki/Q6917782","display_name":"Motion field","level":3,"score":0.51528000831604},{"id":"https://openalex.org/C2780704645","wikidata":"https://www.wikidata.org/wiki/Q9251458","display_name":"Observer (physics)","level":2,"score":0.47196993231773376},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4611940383911133},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4461199939250946},{"id":"https://openalex.org/C146159030","wikidata":"https://www.wikidata.org/wiki/Q7625099","display_name":"Structure from motion","level":3,"score":0.43824443221092224},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.41342049837112427},{"id":"https://openalex.org/C110898773","wikidata":"https://www.wikidata.org/wiki/Q2933935","display_name":"Camera resectioning","level":2,"score":0.3216974139213562},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.10901382565498352},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0761401355266571},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/acc.2009.5160177","is_oa":false,"landing_page_url":"https://doi.org/10.1109/acc.2009.5160177","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 American Control Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W1498813999","https://openalex.org/W1991655747","https://openalex.org/W1991927630","https://openalex.org/W2015662206","https://openalex.org/W2085978098","https://openalex.org/W2094596343","https://openalex.org/W2095610532","https://openalex.org/W2099808268","https://openalex.org/W2120080691","https://openalex.org/W2129631939","https://openalex.org/W2132860477","https://openalex.org/W2138628583","https://openalex.org/W2138785345","https://openalex.org/W2139834417","https://openalex.org/W2140393629","https://openalex.org/W2143817793","https://openalex.org/W2146196065","https://openalex.org/W2151655723","https://openalex.org/W2154687688","https://openalex.org/W2157035977","https://openalex.org/W2160637306","https://openalex.org/W2163589233","https://openalex.org/W2165364008","https://openalex.org/W2746965141","https://openalex.org/W6629629270","https://openalex.org/W6680682461","https://openalex.org/W6682098997"],"related_works":["https://openalex.org/W1501297619","https://openalex.org/W2053820737","https://openalex.org/W1988727984","https://openalex.org/W1484667368","https://openalex.org/W2026674073","https://openalex.org/W2012241496","https://openalex.org/W13825435","https://openalex.org/W2154342456","https://openalex.org/W2197229150","https://openalex.org/W2105413810"],"abstract_inverted_index":{"This":[0],"paper":[1],"discusses":[2],"the":[3,26,30,35,48,68,74,84,95,106,109],"3D":[4,36],"affine":[5,96],"motion":[6,97,111],"estimation":[7,98,112],"problem":[8],"using":[9],"two":[10],"cameras":[11],"via":[12],"observations":[13],"of":[14,66,73,108],"a":[15,41,53],"single":[16],"feature":[17],"point.":[18],"The":[19,44,57,77],"unknown":[20],"parameters":[21,71],"to":[22,63,82,104],"be":[23],"estimated":[24],"include":[25],"nine":[27,69],"rotational":[28,70],"parameters,":[29,33],"three":[31],"translational":[32],"and":[34],"position.":[37],"One":[38],"camera":[39,46,50,59,79],"assumes":[40],"parabolic":[42,58],"projection.":[43],"other":[45,75],"is":[47,60,80,92],"conventional":[49,78],"that":[51],"has":[52],"planar":[54],"projection":[55],"surface.":[56],"needed":[61],"due":[62],"its":[64],"ability":[65],"estimating":[67],"independently":[72],"camera.":[76],"utilized":[81],"solve":[83],"depth":[85],"ambiguity":[86],"problem.":[87,99],"A":[88],"closed-loop":[89],"nonlinear":[90],"observer":[91],"developed":[93],"for":[94],"Simulation":[100],"results":[101],"are":[102],"presented":[103],"show":[105],"robustness":[107],"proposed":[110],"scheme.":[113]},"counts_by_year":[{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
