{"id":"https://openalex.org/W4411725981","doi":"https://doi.org/10.1109/iscas56072.2025.11044178","title":"A 23.5 TOPS/W Depthwise Separable Convolution Accelerator for Event-based Depth Estimation","display_name":"A 23.5 TOPS/W Depthwise Separable Convolution Accelerator for Event-based Depth Estimation","publication_year":2025,"publication_date":"2025-05-25","ids":{"openalex":"https://openalex.org/W4411725981","doi":"https://doi.org/10.1109/iscas56072.2025.11044178"},"language":"en","primary_location":{"id":"doi:10.1109/iscas56072.2025.11044178","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas56072.2025.11044178","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE International Symposium on Circuits and Systems (ISCAS)","raw_type":"proceedings-article"},"type":"conference-paper","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":null,"display_name":"Andres Brito","orcid":null},"institutions":[{"id":"https://openalex.org/I152815399","display_name":"Singapore University of Technology and Design","ror":"https://ror.org/05j6fvn87","country_code":"SG","type":"education","lineage":["https://openalex.org/I152815399"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Andres Brito","raw_affiliation_strings":["Singapore University of Technology and Design (SUTD),Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Singapore University of Technology and Design (SUTD),Singapore","institution_ids":["https://openalex.org/I152815399"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016596757","display_name":"Tomomasa Yamasaki","orcid":"https://orcid.org/0000-0002-5610-8534"},"institutions":[{"id":"https://openalex.org/I152815399","display_name":"Singapore University of Technology and Design","ror":"https://ror.org/05j6fvn87","country_code":"SG","type":"education","lineage":["https://openalex.org/I152815399"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Tomomasa Yamasaki","raw_affiliation_strings":["Singapore University of Technology and Design (SUTD),Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Singapore University of Technology and Design (SUTD),Singapore","institution_ids":["https://openalex.org/I152815399"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058488386","display_name":"Ulysse Ran\u00e7on","orcid":"https://orcid.org/0000-0002-3149-4870"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]},{"id":"https://openalex.org/I4210145991","display_name":"Centre de recherche cerveau et cognition","ror":"https://ror.org/04fhrs205","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I4210096427","https://openalex.org/I4210145991","https://openalex.org/I4405258862"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Ulysse Rancon","raw_affiliation_strings":["Universit&#x00E9; de Toulouse,CerCo UMR 5549, CNRS,Toulouse,France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit&#x00E9; de Toulouse,CerCo UMR 5549, CNRS,Toulouse,France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I17866349","https://openalex.org/I4210145991"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005884869","display_name":"Timoth\u00e9e Masquelier","orcid":"https://orcid.org/0000-0001-8629-9506"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]},{"id":"https://openalex.org/I4210145991","display_name":"Centre de recherche cerveau et cognition","ror":"https://ror.org/04fhrs205","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I4210096427","https://openalex.org/I4210145991","https://openalex.org/I4405258862"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Timothee Masquelier","raw_affiliation_strings":["Universit&#x00E9; de Toulouse,CerCo UMR 5549, CNRS,Toulouse,France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit&#x00E9; de Toulouse,CerCo UMR 5549, CNRS,Toulouse,France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I17866349","https://openalex.org/I4210145991"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054482754","display_name":"Benoit R. Cottereau","orcid":"https://orcid.org/0000-0002-2624-7680"},"institutions":[{"id":"https://openalex.org/I4210094239","display_name":"Image and Pervasive Access Laboratory","ror":"https://ror.org/00m3mb357","country_code":"SG","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I4210094239"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Benoit R. Cottereau","raw_affiliation_strings":["IPAL,CNRS IRL 2955,Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IPAL,CNRS IRL 2955,Singapore","institution_ids":["https://openalex.org/I4210094239"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101615706","display_name":"Anh Tuan","orcid":"https://orcid.org/0000-0002-8320-6818"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I4210090209","display_name":"Institute of Microelectronics","ror":"https://ror.org/009rw8n36","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I4210090209","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Anh Tuan Do","raw_affiliation_strings":["Agency for Science, Technology &amp; Research (A*STAR),Institute of Microelectronics,Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agency for Science, Technology &amp; Research (A*STAR),Institute of Microelectronics,Singapore","institution_ids":["https://openalex.org/I115228651","https://openalex.org/I4210090209"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024806199","display_name":"Bo Wang","orcid":"https://orcid.org/0000-0002-9381-6679"},"institutions":[{"id":"https://openalex.org/I152815399","display_name":"Singapore University of Technology and Design","ror":"https://ror.org/05j6fvn87","country_code":"SG","type":"education","lineage":["https://openalex.org/I152815399"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Bo Wang","raw_affiliation_strings":["Singapore University of Technology and Design (SUTD),Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Singapore University of Technology and Design (SUTD),Singapore","institution_ids":["https://openalex.org/I152815399"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.998199999332428,"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":0.998199999332428,"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/T12111","display_name":"Industrial Vision Systems and Defect Detection","score":0.9944000244140625,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"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/T10638","display_name":"Optical measurement and interference techniques","score":0.9912999868392944,"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/tops","display_name":"TOPS","score":0.8370532989501953},{"id":"https://openalex.org/keywords/convolution","display_name":"Convolution (computer science)","score":0.7467678189277649},{"id":"https://openalex.org/keywords/separable-space","display_name":"Separable space","score":0.7318307161331177},{"id":"https://openalex.org/keywords/event","display_name":"Event (particle physics)","score":0.5220189690589905},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4882800579071045},{"id":"https://openalex.org/keywords/acceleration","display_name":"Acceleration","score":0.42805781960487366},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.40213415026664734},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3325682282447815},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3095020651817322},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.26920104026794434},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.22112244367599487},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.18927627801895142},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.06815117597579956},{"id":"https://openalex.org/keywords/quantum-mechanics","display_name":"Quantum mechanics","score":0.0654079020023346}],"concepts":[{"id":"https://openalex.org/C2777675136","wikidata":"https://www.wikidata.org/wiki/Q835642","display_name":"TOPS","level":3,"score":0.8370532989501953},{"id":"https://openalex.org/C45347329","wikidata":"https://www.wikidata.org/wiki/Q5166604","display_name":"Convolution (computer science)","level":3,"score":0.7467678189277649},{"id":"https://openalex.org/C70710897","wikidata":"https://www.wikidata.org/wiki/Q680081","display_name":"Separable space","level":2,"score":0.7318307161331177},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.5220189690589905},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4882800579071045},{"id":"https://openalex.org/C117896860","wikidata":"https://www.wikidata.org/wiki/Q11376","display_name":"Acceleration","level":2,"score":0.42805781960487366},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.40213415026664734},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3325682282447815},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3095020651817322},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.26920104026794434},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.22112244367599487},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.18927627801895142},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.06815117597579956},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0654079020023346},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/iscas56072.2025.11044178","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas56072.2025.11044178","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE International Symposium on Circuits and Systems (ISCAS)","raw_type":"proceedings-article"},{"id":"pmh:oai:HAL:hal-05346776v1","is_oa":false,"landing_page_url":"https://hal.science/hal-05346776","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"2025 IEEE International Symposium on Circuits and Systems, May 2025, London, United Kingdom","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/13","score":0.6600000262260437,"display_name":"Climate action"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320311649","display_name":"Ministry of Education","ror":"https://ror.org/036nq5137"},{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W2588191434","https://openalex.org/W2963163009","https://openalex.org/W3040838455","https://openalex.org/W3102040318","https://openalex.org/W3159730268","https://openalex.org/W3162993841","https://openalex.org/W3202875595","https://openalex.org/W4297580547","https://openalex.org/W4297775537","https://openalex.org/W4313002018","https://openalex.org/W4321392758","https://openalex.org/W4386710183","https://openalex.org/W4388894005","https://openalex.org/W4400234428"],"related_works":["https://openalex.org/W2811109569","https://openalex.org/W2385933648","https://openalex.org/W2530952058","https://openalex.org/W2582836483","https://openalex.org/W4299366318","https://openalex.org/W3158431807","https://openalex.org/W4297580547","https://openalex.org/W2951583185","https://openalex.org/W2531409750","https://openalex.org/W4308155352"],"abstract_inverted_index":{"Recent":[0],"efforts":[1],"to":[2,90],"improve":[3],"energy":[4,123],"efficiency":[5],"in":[6,122,133],"computer":[7],"vision":[8],"(CV)":[9],"tasks,":[10],"such":[11],"as":[12],"depth":[13],"estimation,":[14],"focus":[15],"on":[16],"integrating":[17],"event-based":[18],"cameras":[19],"with":[20,57,129],"lightweight":[21],"networks":[22],"using":[23,114],"Depthwise":[24],"Separable":[25],"(DWS)":[26],"Convolutions.":[27],"Despite":[28],"remarkable":[29],"accuracies":[30],"and":[31,69,80,85,103],"hardware-friendly":[32],"binary":[33,52],"signals,":[34],"existing":[35],"accelerators":[36],"have":[37],"not":[38],"fully":[39],"leveraged":[40],"this":[41],"combination.":[42],"This":[43],"paper":[44],"proposes":[45],"a":[46,119,130],"Separated":[47],"Engine":[48],"(SE)":[49],"architecture":[50],"for":[51,60],"input":[53],"feature":[54],"maps":[55],"(ifmaps)":[56],"dedicated":[58],"arrays":[59],"each":[61],"DWS":[62],"stage,":[63],"eliminating":[64],"data":[65,92],"storage":[66],"between":[67],"stages":[68],"enhancing":[70],"array":[71],"utilization.":[72],"Additionally,":[73],"an":[74,96],"integrative":[75],"dataflow":[76],"incorporating":[77],"Row,":[78],"Weight,":[79],"Input":[81],"Stationary":[82],"(RS,":[83],"WS,":[84],"IS)":[86],"advantages":[87],"is":[88],"introduced":[89],"maximize":[91],"reuse,":[93],"supported":[94],"by":[95],"optimized":[97],"mapping":[98],"strategy":[99],"that":[100],"efficiently":[101],"loads":[102],"updates":[104],"ifmaps":[105],"onto":[106],"the":[107],"first":[108],"array.":[109],"Our":[110],"gate-level":[111],"simulation":[112],"results":[113],"28nm":[115],"CMOS":[116],"technology":[117],"demonstrated":[118],"1.7x":[120],"improvement":[121],"efficiency,":[124,135],"achieving":[125],"23.5":[126],"TOPS/W,":[127],"along":[128],"13x":[131],"enhancement":[132],"area":[134],"reaching":[136],"1785.5":[137],"GOP/mm<sup":[138],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[139],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>.":[140]},"counts_by_year":[],"updated_date":"2026-07-25T17:18:41.151588","created_date":"2025-10-10T00:00:00"}
