{"id":"https://openalex.org/W7161142154","doi":"https://doi.org/10.1109/dcc66757.2026.00114","title":"MPP-LIC: Mixed Precision Post-Training Quantization for Learned Image Compression","display_name":"MPP-LIC: Mixed Precision Post-Training Quantization for Learned Image Compression","publication_year":2026,"publication_date":"2026-03-24","ids":{"openalex":"https://openalex.org/W7161142154","doi":"https://doi.org/10.1109/dcc66757.2026.00114"},"language":null,"primary_location":{"id":"doi:10.1109/dcc66757.2026.00114","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dcc66757.2026.00114","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 Data Compression Conference (DCC)","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/A5136124929","display_name":"Yuefeng Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yuefeng Zhang","raw_affiliation_strings":["Beijing Institute of Computer Technology and Application,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Computer Technology and Application,Beijing,China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101813668","display_name":"Wenhao Shen","orcid":"https://orcid.org/0000-0003-3427-0669"},"institutions":[{"id":"https://openalex.org/I158842170","display_name":"Chongqing University","ror":"https://ror.org/023rhb549","country_code":"CN","type":"education","lineage":["https://openalex.org/I158842170"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenhao Shen","raw_affiliation_strings":["Chongqing University,Chongqing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chongqing University,Chongqing,China","institution_ids":["https://openalex.org/I158842170"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101935394","display_name":"Tong Gao","orcid":"https://orcid.org/0000-0002-1560-1437"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tong Gao","raw_affiliation_strings":["Beijing Institute of Computer Technology and Application,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Computer Technology and Application,Beijing,China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136116807","display_name":"Ning Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ning Zhang","raw_affiliation_strings":["Beijing Institute of Computer Technology and Application,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Computer Technology and Application,Beijing,China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5136089762","display_name":"Peng Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Peng Wang","raw_affiliation_strings":["Northwestern Polytechnical University,Shaanxi,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northwestern Polytechnical University,Shaanxi,China","institution_ids":["https://openalex.org/I17145004"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5136124929"],"corresponding_institution_ids":["https://openalex.org/I125839683"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.94383341,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"487","last_page":"487"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9606000185012817,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9606000185012817,"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":0.0038999998942017555,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.003100000089034438,"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/image-compression","display_name":"Image compression","score":0.46779999136924744},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.4503999948501587},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.41429999470710754},{"id":"https://openalex.org/keywords/compression","display_name":"Compression (physics)","score":0.40700000524520874},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.3736000061035156}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5838000178337097},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.573199987411499},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5486000180244446},{"id":"https://openalex.org/C13481523","wikidata":"https://www.wikidata.org/wiki/Q412438","display_name":"Image compression","level":4,"score":0.46779999136924744},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.4503999948501587},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.41429999470710754},{"id":"https://openalex.org/C180016635","wikidata":"https://www.wikidata.org/wiki/Q2712821","display_name":"Compression (physics)","level":2,"score":0.40700000524520874},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3935999870300293},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.3736000061035156},{"id":"https://openalex.org/C199833920","wikidata":"https://www.wikidata.org/wiki/Q612536","display_name":"Vector quantization","level":2,"score":0.3384000062942505},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.32030001282691956},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.31310001015663147},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30660000443458557}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/dcc66757.2026.00114","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dcc66757.2026.00114","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 Data Compression Conference (DCC)","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":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Learning-based":[0],"Image":[1],"Compression":[2],"(LIC)":[3],"models":[4],"are":[5],"hindered":[6],"by":[7,114],"high":[8],"computational":[9],"complexity":[10],"and":[11,106],"encoding-decoding":[12],"mismatch":[13],"issues":[14],"across":[15],"different":[16],"hardware":[17],"platforms.":[18],"While":[19],"Post-Training":[20],"Quantization":[21],"(PTQ)":[22],"enables":[23],"efficient":[24,44],"deployment,":[25],"standard":[26],"fixed-bit":[27],"approaches":[28],"exhibit":[29],"substantial":[30],"quality":[31],"degradation":[32],"at":[33],"low":[34],"precision.":[35],"To":[36],"address":[37],"these":[38],"limitations,":[39],"we":[40,125],"propose":[41],"MPP-LIC,":[42],"an":[43],"mixed-precision":[45],"PTQ":[46],"approach":[47,51],"for":[48,78],"LIC.":[49],"Our":[50],"consists":[52],"of":[53],"four":[54],"key":[55],"steps":[56],"as":[57],"illustrated":[58],"in":[59],"Fig.":[60],"1:":[61,63],"\u2022Step":[62,81,109,141],"acquire":[64],"initial":[65],"sensitivity":[66,77,85,95,116,135],"list.":[67,117],"We":[68,91,147],"leverage":[69],"the":[70,93,115,119,134],"Hessian":[71],"trace":[72],"to":[73,129,133],"estimate":[74],"each":[75,130],"block's":[76],"following":[79],"quantization.":[80],"2:":[82],"obtain":[83],"optimized":[84,94],"list":[86,96,136],"based":[87],"on":[88,151],"task-constraint":[89,144],"metric.":[90],"formulate":[92],"using":[97,155],"a":[98],"task-constrained":[99],"metric":[100],"that":[101],"considers":[102],"both":[103],"quantization":[104],"error":[105],"rate-distortion":[107],"performance.":[108],"3:":[110],"allocate":[111],"mixed":[112,127],"bit-width":[113],"Under":[118],"manually":[120],"specified":[121],"model":[122,154],"size":[123],"constraint,":[124],"assign":[126],"bit-widths":[128],"block":[131],"according":[132],"obtained":[137],"from":[138],"Step":[139],"2.":[140],"4:":[142],"conduct":[143],"block-wise":[145],"optimization.":[146],"perform":[148],"blockwise":[149],"optimization":[150],"mixed-":[152],"precision":[153],"minimal":[156],"calibration":[157],"images.":[158]},"counts_by_year":[],"updated_date":"2026-05-16T06:04:12.930555","created_date":"2026-05-15T00:00:00"}