{"id":"https://openalex.org/W4408149566","doi":"https://doi.org/10.1145/3721431","title":"Dynamic Point Cloud Denoising via Gradient Fields","display_name":"Dynamic Point Cloud Denoising via Gradient Fields","publication_year":2025,"publication_date":"2025-03-04","ids":{"openalex":"https://openalex.org/W4408149566","doi":"https://doi.org/10.1145/3721431"},"language":"en","primary_location":{"id":"doi:10.1145/3721431","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3721431","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3721431","source":{"id":"https://openalex.org/S19610489","display_name":"ACM Transactions on Multimedia Computing Communications and Applications","issn_l":"1551-6857","issn":["1551-6857","1551-6865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Multimedia Computing, Communications, and Applications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3721431","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5043329602","display_name":"Qianjiang Hu","orcid":"https://orcid.org/0009-0002-9375-1008"},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qianjiang Hu","raw_affiliation_strings":["Wangxuan Institute of Computer Technology, Peking University, Beijing, China","Wangxuan Institute of Computer Technology, Peking University, China"],"raw_orcid":"https://orcid.org/0009-0002-9375-1008","affiliations":[{"raw_affiliation_string":"Wangxuan Institute of Computer Technology, Peking University, Beijing, China","institution_ids":["https://openalex.org/I20231570"]},{"raw_affiliation_string":"Wangxuan Institute of Computer Technology, Peking University, China","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5059045087","display_name":"Wei Hu","orcid":"https://orcid.org/0000-0002-9860-0922"},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Hu","raw_affiliation_strings":["Wangxuan Institute of Computer Technology, Peking University, Beijing, China","Wangxuan Institute of Computer Technology, Peking University, China"],"raw_orcid":"https://orcid.org/0000-0002-9860-0922","affiliations":[{"raw_affiliation_string":"Wangxuan Institute of Computer Technology, Peking University, Beijing, China","institution_ids":["https://openalex.org/I20231570"]},{"raw_affiliation_string":"Wangxuan Institute of Computer Technology, Peking University, China","institution_ids":["https://openalex.org/I20231570"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I20231570"],"apc_list":null,"apc_paid":null,"fwci":0.8209,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.64426898,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"21","issue":"4","first_page":"1","last_page":"24"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9991000294685364,"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/T11245","display_name":"Advanced Numerical Analysis Techniques","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/computer-science","display_name":"Computer science","score":0.8429754972457886},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.5266131162643433},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.49247655272483826},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.4529600739479065},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.4275829792022705},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.318389356136322},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.0915118157863617}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8429754972457886},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.5266131162643433},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.49247655272483826},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.4529600739479065},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.4275829792022705},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.318389356136322},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0915118157863617},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3721431","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3721431","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3721431","source":{"id":"https://openalex.org/S19610489","display_name":"ACM Transactions on Multimedia Computing Communications and Applications","issn_l":"1551-6857","issn":["1551-6857","1551-6865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Multimedia Computing, Communications, and Applications","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1145/3721431","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3721431","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3721431","source":{"id":"https://openalex.org/S19610489","display_name":"ACM Transactions on Multimedia Computing Communications and Applications","issn_l":"1551-6857","issn":["1551-6857","1551-6865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Multimedia Computing, Communications, and Applications","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4408149566.pdf"},"referenced_works_count":53,"referenced_works":["https://openalex.org/W1505878979","https://openalex.org/W1658042064","https://openalex.org/W1988317275","https://openalex.org/W1992642990","https://openalex.org/W2052790699","https://openalex.org/W2056370875","https://openalex.org/W2081194966","https://openalex.org/W2137531922","https://openalex.org/W2140711847","https://openalex.org/W2160754664","https://openalex.org/W2169611956","https://openalex.org/W2623075562","https://openalex.org/W2765223700","https://openalex.org/W2775145835","https://openalex.org/W2811354074","https://openalex.org/W2963026027","https://openalex.org/W2964253597","https://openalex.org/W2979750740","https://openalex.org/W2998456637","https://openalex.org/W2999877417","https://openalex.org/W3004970274","https://openalex.org/W3018015404","https://openalex.org/W3022095505","https://openalex.org/W3039529484","https://openalex.org/W3047167401","https://openalex.org/W3089927720","https://openalex.org/W3097718484","https://openalex.org/W3122628962","https://openalex.org/W3137466219","https://openalex.org/W3173823845","https://openalex.org/W3176345994","https://openalex.org/W3177525997","https://openalex.org/W3199986655","https://openalex.org/W3199992965","https://openalex.org/W3209852754","https://openalex.org/W4205490894","https://openalex.org/W4214540501","https://openalex.org/W4234333737","https://openalex.org/W4236965008","https://openalex.org/W4240153047","https://openalex.org/W4241602464","https://openalex.org/W4253974813","https://openalex.org/W4294753596","https://openalex.org/W4301409532","https://openalex.org/W4365421344","https://openalex.org/W4383220231","https://openalex.org/W4391020616","https://openalex.org/W6674723063","https://openalex.org/W6680321179","https://openalex.org/W6683825394","https://openalex.org/W6781568228","https://openalex.org/W6803341980","https://openalex.org/W6860628872"],"related_works":["https://openalex.org/W4244478748","https://openalex.org/W3150465815","https://openalex.org/W4223488648","https://openalex.org/W2134969820","https://openalex.org/W2251605416","https://openalex.org/W1997222214","https://openalex.org/W2560439919","https://openalex.org/W4389340727","https://openalex.org/W2802581102","https://openalex.org/W4205786897"],"abstract_inverted_index":{"3D":[0],"dynamic":[1,61,75,93],"point":[2,30,58,62,76,94,112,126,205,232],"clouds":[3,31],"provide":[4],"a":[5,72,166,183],"discrete":[6],"representation":[7],"of":[8,87,105,109,136,175,190,230,241],"real-world":[9,267],"objects":[10],"or":[11],"scenes":[12],"in":[13,20,92,156,171,233,248],"motion,":[14],"which":[15,40,116,169],"have":[16,53],"been":[17,54],"widely":[18],"applied":[19],"immersive":[21],"telepresence,":[22],"autonomous":[23],"driving,":[24],"surveillance,":[25],"and":[26,48,97,140,265],"so":[27,121],"on.":[28],"However,":[29],"acquired":[32],"from":[33,245],"sensors":[34],"are":[35,150],"usually":[36],"perturbed":[37],"by":[38],"noise,":[39],"affects":[41],"downstream":[42],"tasks":[43],"such":[44],"as":[45,122,165],"surface":[46,138,219],"reconstruction":[47],"analysis.":[49,98],"Although":[50],"many":[51],"efforts":[52],"made":[55],"for":[56],"static":[57],"cloud":[59,63,77,95],"denoising,":[60],"denoising":[64,78],"remains":[65],"under-explored.":[66],"In":[67,159],"this":[68],"article,":[69],"we":[70,117,161],"propose":[71],"novel":[73],"gradient-field-based":[74],"method,":[79],"exploiting":[80],"the":[81,85,103,106,110,128,134,142,146,172,188,193,198,204,209,212,217,224,228,234,239,242,255],"temporal":[82,143,225],"correspondence":[83],"via":[84,179],"estimation":[86],"gradient":[88,100,104,119,135,173,199,243],"fields\u2014a":[89],"fundamental":[90],"problem":[91],"processing":[96],"The":[99],"field":[101,174],"is":[102,206,236],"log-probability":[107],"function":[108],"noisy":[111],"cloud,":[113],"based":[114],"on":[115,153],"perform":[118],"ascent":[120],"to":[123,127,208,223],"converge":[124],"each":[125,137,163,231],"underlying":[129,210,218],"clean":[130],"surface.":[131],"We":[132],"estimate":[133],"patch":[139,164,194,214,235],"exploit":[141],"correspondence,":[144],"where":[145],"temporally":[147],"corresponding":[148,246],"patches":[149,247],"searched":[151],"leveraging":[152],"rigid":[154,167],"motion":[155],"classical":[157],"mechanics.":[158],"particular,":[160],"treat":[162],"object,":[168],"moves":[170],"an":[176],"adjacent":[177,249],"frame":[178],"force":[180],"until":[181],"reaching":[182],"balanced":[184,213],"state,":[185],"i.e.,":[186],"when":[187,203],"sum":[189],"gradients":[191],"over":[192],"reaches":[195],"0.":[196],"Since":[197],"would":[200,215],"be":[201],"smaller":[202],"closer":[207],"surface,":[211],"fit":[216],"well,":[220],"thus":[221],"leading":[222],"correspondence.":[226],"Finally,":[227],"position":[229],"updated":[237],"along":[238],"direction":[240],"averaged":[244],"frames.":[250],"Experimental":[251],"results":[252],"demonstrate":[253],"that":[254],"proposed":[256],"model":[257],"outperforms":[258],"state-of-the-art":[259],"methods":[260],"under":[261],"both":[262],"synthetic":[263],"noise":[264],"simulated":[266],"noise.":[268]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
