{"id":"https://openalex.org/W4410553015","doi":"https://doi.org/10.23919/date64628.2025.10992839","title":"SpNeRF: Memory Efficient Sparse Volumetric Neural Rendering Accelerator for Edge Devices","display_name":"SpNeRF: Memory Efficient Sparse Volumetric Neural Rendering Accelerator for Edge Devices","publication_year":2025,"publication_date":"2025-03-31","ids":{"openalex":"https://openalex.org/W4410553015","doi":"https://doi.org/10.23919/date64628.2025.10992839"},"language":"en","primary_location":{"id":"doi:10.23919/date64628.2025.10992839","is_oa":false,"landing_page_url":"https://doi.org/10.23919/date64628.2025.10992839","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Design, Automation &amp;amp; Test in Europe Conference (DATE)","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/A5101401834","display_name":"Yipu Zhang","orcid":"https://orcid.org/0000-0002-1167-3046"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Yipu Zhang","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004005455","display_name":"Jiawei Liang","orcid":null},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jiawei Liang","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101780472","display_name":"Jian Peng","orcid":"https://orcid.org/0000-0002-2280-7214"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jian Peng","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013248987","display_name":"Jiang Xu","orcid":"https://orcid.org/0000-0001-9089-7752"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jiang Xu","raw_affiliation_strings":["The Hong Kong University of Science and Technology (GZ),Microelectronics Thrust"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology (GZ),Microelectronics Thrust","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084565580","display_name":"Wei Zhang","orcid":"https://orcid.org/0000-0002-1658-0236"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Wei Zhang","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Department of Electronic and Computer Engineering","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101401834"],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":1.33,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.8054715,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9828000068664551,"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":0.9828000068664551,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9810000061988831,"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"}},{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9782000184059143,"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/computer-science","display_name":"Computer science","score":0.7207878232002258},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.708471417427063},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.44683271646499634},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.40162935853004456},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3748970627784729}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7207878232002258},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.708471417427063},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.44683271646499634},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.40162935853004456},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3748970627784729}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.23919/date64628.2025.10992839","is_oa":false,"landing_page_url":"https://doi.org/10.23919/date64628.2025.10992839","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Design, Automation &amp;amp; Test in Europe Conference (DATE)","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-148246","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-148246","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"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":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8299999833106995}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W2034861439","https://openalex.org/W3040646053","https://openalex.org/W3092203888","https://openalex.org/W3093933627","https://openalex.org/W3109585842","https://openalex.org/W4221151978","https://openalex.org/W4295312788","https://openalex.org/W4297097469","https://openalex.org/W4312076514","https://openalex.org/W4312234520","https://openalex.org/W4380874758","https://openalex.org/W4380881106","https://openalex.org/W4386113270","https://openalex.org/W4386765002","https://openalex.org/W6766978945","https://openalex.org/W6781421651","https://openalex.org/W6846685787"],"related_works":["https://openalex.org/W291250033","https://openalex.org/W2035757446","https://openalex.org/W3137044537","https://openalex.org/W2008385118","https://openalex.org/W880955280","https://openalex.org/W2106647072","https://openalex.org/W2172753644","https://openalex.org/W2170209930","https://openalex.org/W4246858109","https://openalex.org/W54172855"],"abstract_inverted_index":{"Neural":[0],"rendering":[1,81],"has":[2],"gained":[3],"prominence":[4],"for":[5,12,72,111],"its":[6,16],"high-quality":[7],"output,":[8],"which":[9,53],"is":[10],"crucial":[11],"AR/VR":[13],"applications.":[14],"However,":[15],"large":[17,49],"voxel":[18,50,90,112,139,166],"grid":[19,51,91,140,167],"data":[20,39,92,123],"size":[21,110,182],"and":[22,59,83,103,197,208,210,218],"irregular":[23,122],"access":[24,58,124],"patterns":[25],"challenge":[26],"real-time":[27],"processing":[28,168],"on":[29,37],"edge":[30],"devices.":[31],"While":[32],"previous":[33],"works":[34],"have":[35,42],"focused":[36],"improving":[38],"locality,":[40],"they":[41],"not":[43],"adequately":[44],"addressed":[45],"the":[46,85,89,108],"issue":[47],"of":[48,93,204],"sizes,":[52],"necessitate":[54],"frequent":[55],"off-chip":[56],"memory":[57,109,129,181],"substantial":[60],"on-chip":[61,137],"memory.":[62],"This":[63],"paper":[64],"introduces":[65],"SpNeRF,":[66],"a":[67,127,159],"software-hardware":[68],"co-design":[69],"solution":[70],"tailored":[71],"sparse":[73,138,165],"volumetric":[74],"neural":[75,94],"rendering.":[76,95],"We":[77],"first":[78],"identify":[79],"memory-bound":[80],"inefficiencies":[82],"analyze":[84],"inherent":[86],"sparsity":[87],"in":[88,180],"To":[96,153],"enhance":[97],"efficiency,":[98],"we":[99,157],"propose":[100],"novel":[101],"preprocessing":[102,115],"online":[104,132],"decoding":[105,133],"steps,":[106],"reducing":[107],"grid.":[113],"The":[114,131],"step":[116,134],"employs":[117],"hash":[118,151],"mapping":[119],"to":[120,145],"support":[121],"while":[125,183],"maintaining":[126,184],"minimal":[128],"size.":[130],"enables":[135],"efficient":[136],"processing,":[141],"incorporating":[142],"bitmap":[143],"masking":[144],"mitigate":[146],"PSNR":[147,186],"loss":[148],"caused":[149],"by":[150,214],"collisions.":[152],"further":[154],"optimize":[155],"performance,":[156],"design":[158,201],"dedicated":[160],"hardware":[161],"architecture":[162],"supporting":[163],"our":[164,200],"technique.":[169],"Experimental":[170],"results":[171],"demonstrate":[172],"that":[173],"SpNeRF":[174],"achieves":[175,202],"an":[176],"average":[177],"21.07\u00d7":[178],"reduction":[179],"comparable":[185],"levels.":[187],"When":[188],"benchmarked":[189],"against":[190],"Jetson":[191,193],"XNX,":[192],"ONX,":[194],"RT-NeRF.":[195],"Edge":[196],"NeuRex.":[198],"Edge,":[199],"speedups":[203],"95.1\u00d7,":[205],"63.5\u00d7,":[206],"1.5\u00d7":[207],"10.3\u00d7,":[209],"improves":[211],"energy":[212],"efficiency":[213],"625.6\u00d7,":[215],"529.1\u00d7,":[216],"4\u00d7,":[217],"4.4\u00d7,":[219],"respectively.":[220]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}
