{"id":"https://openalex.org/W2163396944","doi":"https://doi.org/10.1109/dicta.2007.4426817","title":"Gradient Operators for the Determination of Optical Flow","display_name":"Gradient Operators for the Determination of Optical Flow","publication_year":2007,"publication_date":"2007-12-01","ids":{"openalex":"https://openalex.org/W2163396944","doi":"https://doi.org/10.1109/dicta.2007.4426817","mag":"2163396944"},"language":"en","primary_location":{"id":"doi:10.1109/dicta.2007.4426817","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dicta.2007.4426817","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007)","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/A5086127596","display_name":"Hugh L. Kennedy","orcid":"https://orcid.org/0000-0003-3139-0438"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Hugh L. Kennedy","raw_affiliation_strings":["BAE Space Systems Limited, Australia"],"affiliations":[{"raw_affiliation_string":"BAE Space Systems Limited, Australia","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5086127596"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.3246,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.6544548,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"1","issue":null,"first_page":"346","last_page":"351"},"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/T11105","display_name":"Advanced Image Processing Techniques","score":0.9984999895095825,"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":0.9961000084877014,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/optical-flow","display_name":"Optical flow","score":0.6703389883041382},{"id":"https://openalex.org/keywords/separable-space","display_name":"Separable space","score":0.6376127004623413},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.601033627986908},{"id":"https://openalex.org/keywords/dimension","display_name":"Dimension (graph theory)","score":0.5572999715805054},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.48959046602249146},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.4864802062511444},{"id":"https://openalex.org/keywords/balanced-flow","display_name":"Balanced flow","score":0.47881752252578735},{"id":"https://openalex.org/keywords/flow","display_name":"Flow (mathematics)","score":0.4609336256980896},{"id":"https://openalex.org/keywords/spatial-filter","display_name":"Spatial filter","score":0.41013529896736145},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.370827317237854},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35161060094833374},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.279388427734375},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.2623216509819031},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.1523689329624176},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.13973626494407654}],"concepts":[{"id":"https://openalex.org/C155542232","wikidata":"https://www.wikidata.org/wiki/Q736111","display_name":"Optical flow","level":3,"score":0.6703389883041382},{"id":"https://openalex.org/C70710897","wikidata":"https://www.wikidata.org/wiki/Q680081","display_name":"Separable space","level":2,"score":0.6376127004623413},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.601033627986908},{"id":"https://openalex.org/C33676613","wikidata":"https://www.wikidata.org/wiki/Q13415176","display_name":"Dimension (graph theory)","level":2,"score":0.5572999715805054},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.48959046602249146},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.4864802062511444},{"id":"https://openalex.org/C167879884","wikidata":"https://www.wikidata.org/wiki/Q727568","display_name":"Balanced flow","level":2,"score":0.47881752252578735},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.4609336256980896},{"id":"https://openalex.org/C121475858","wikidata":"https://www.wikidata.org/wiki/Q2735911","display_name":"Spatial filter","level":2,"score":0.41013529896736145},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.370827317237854},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35161060094833374},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.279388427734375},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.2623216509819031},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.1523689329624176},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.13973626494407654},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/dicta.2007.4426817","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dicta.2007.4426817","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007)","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/W1479992515","https://openalex.org/W1487573600","https://openalex.org/W1524740320","https://openalex.org/W1548898270","https://openalex.org/W1604821798","https://openalex.org/W1607441166","https://openalex.org/W1992323613","https://openalex.org/W2034551784","https://openalex.org/W2038091212","https://openalex.org/W2057375458","https://openalex.org/W2086443239","https://openalex.org/W2089527822","https://openalex.org/W2098579890","https://openalex.org/W2118482674","https://openalex.org/W2120042939","https://openalex.org/W2122703286","https://openalex.org/W2138222454","https://openalex.org/W2139828242","https://openalex.org/W2141526225","https://openalex.org/W2154979277","https://openalex.org/W2164537870","https://openalex.org/W2165267096","https://openalex.org/W3003662786","https://openalex.org/W4244612768","https://openalex.org/W4254477613","https://openalex.org/W6632944846","https://openalex.org/W6682920801"],"related_works":["https://openalex.org/W2009525028","https://openalex.org/W4321064619","https://openalex.org/W2076561698","https://openalex.org/W2053599029","https://openalex.org/W2962925412","https://openalex.org/W2023672523","https://openalex.org/W4246719751","https://openalex.org/W2483165346","https://openalex.org/W3011179836","https://openalex.org/W4297752497"],"abstract_inverted_index":{"Gradient":[0],"operators":[1],"for":[2],"the":[3,22,27,38,89],"determination":[4],"of":[5,58],"optical":[6],"flow":[7],"in":[8,30],"images":[9],"are":[10,20,36,65],"designed":[11],"using":[12,79],"classical":[13],"linear":[14,28],"regression":[15],"methods.":[16],"Two":[17],"general":[18],"approaches":[19],"presented:":[21],"first":[23,90],"method":[24,43,52,84],"assumes":[25],"that":[26],"models":[29],"each":[31],"spatial":[32],"and":[33,56,73],"temporal":[34],"dimension":[35],"separable;":[37],"second":[39,51,83],"(and":[40],"less-commonly":[41],"used)":[42],"does":[44],"not":[45],"rely":[46],"on":[47],"this":[48],"assumption.":[49],"The":[50,63,82],"allows":[53],"complex":[54],"shapes":[55],"modes":[57],"motion":[59],"to":[60,87],"be":[61],"captured.":[62],"methods":[64],"optimized":[66],"by":[67],"adjusting":[68],"filter":[69],"latency,":[70],"model":[71],"order":[72],"window":[74],"size.":[75],"Performance":[76],"is":[77,85],"compared":[78],"synthetic":[80],"data.":[81],"shown":[86],"outperform":[88],"method.":[91]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
