{"id":"https://openalex.org/W1563107752","doi":"https://doi.org/10.1109/icassp.1987.1169563","title":"Variable block-size image coding","display_name":"Variable block-size image coding","publication_year":2005,"publication_date":"2005-03-24","ids":{"openalex":"https://openalex.org/W1563107752","doi":"https://doi.org/10.1109/icassp.1987.1169563","mag":"1563107752"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1987.1169563","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1987.1169563","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing","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":"https://openalex.org/A5007022986","display_name":"D. Vaisey","orcid":null},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. Vaisey","raw_affiliation_strings":["University of California, Santa Barbara, CA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, CA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016272725","display_name":"A. Gersho","orcid":null},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"A. Gersho","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I154570441"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":115,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"12","issue":null,"first_page":"1051","last_page":"1054"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","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/T10901","display_name":"Advanced Data Compression Techniques","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/T10741","display_name":"Video Coding and Compression Technologies","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9987999796867371,"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/vector-quantization","display_name":"Vector quantization","score":0.7105042934417725},{"id":"https://openalex.org/keywords/block-size","display_name":"Block size","score":0.6654818654060364},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.593366265296936},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5900296568870544},{"id":"https://openalex.org/keywords/quadtree","display_name":"Quadtree","score":0.5663343071937561},{"id":"https://openalex.org/keywords/variable-length-code","display_name":"Variable-length code","score":0.517707347869873},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4938076436519623},{"id":"https://openalex.org/keywords/image-segmentation","display_name":"Image segmentation","score":0.47962746024131775},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.47604990005493164},{"id":"https://openalex.org/keywords/transform-coding","display_name":"Transform coding","score":0.449564665555954},{"id":"https://openalex.org/keywords/coding-tree-unit","display_name":"Coding tree unit","score":0.4318530261516571},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4238147735595703},{"id":"https://openalex.org/keywords/algorithmic-efficiency","display_name":"Algorithmic efficiency","score":0.4127689301967621},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.39863574504852295},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.34021222591400146},{"id":"https://openalex.org/keywords/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.3248186707496643},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.3159319758415222},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3077203631401062},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.30369651317596436},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.18059629201889038},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.07136383652687073}],"concepts":[{"id":"https://openalex.org/C199833920","wikidata":"https://www.wikidata.org/wiki/Q612536","display_name":"Vector quantization","level":2,"score":0.7105042934417725},{"id":"https://openalex.org/C41431624","wikidata":"https://www.wikidata.org/wiki/Q1053357","display_name":"Block size","level":3,"score":0.6654818654060364},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.593366265296936},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5900296568870544},{"id":"https://openalex.org/C151416825","wikidata":"https://www.wikidata.org/wiki/Q934791","display_name":"Quadtree","level":2,"score":0.5663343071937561},{"id":"https://openalex.org/C60603091","wikidata":"https://www.wikidata.org/wiki/Q2981616","display_name":"Variable-length code","level":3,"score":0.517707347869873},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4938076436519623},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.47962746024131775},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.47604990005493164},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.449564665555954},{"id":"https://openalex.org/C190750250","wikidata":"https://www.wikidata.org/wiki/Q13533439","display_name":"Coding tree unit","level":3,"score":0.4318530261516571},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4238147735595703},{"id":"https://openalex.org/C116709606","wikidata":"https://www.wikidata.org/wiki/Q1296251","display_name":"Algorithmic efficiency","level":3,"score":0.4127689301967621},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.39863574504852295},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.34021222591400146},{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.3248186707496643},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.3159319758415222},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3077203631401062},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.30369651317596436},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.18059629201889038},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07136383652687073},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1987.1169563","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1987.1169563","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing","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":8,"referenced_works":["https://openalex.org/W1940433659","https://openalex.org/W1978451268","https://openalex.org/W2050576295","https://openalex.org/W2102895430","https://openalex.org/W2128460655","https://openalex.org/W2134383396","https://openalex.org/W2142860632","https://openalex.org/W2152037928"],"related_works":["https://openalex.org/W4294069571","https://openalex.org/W2999420289","https://openalex.org/W2166229300","https://openalex.org/W1987778158","https://openalex.org/W2020544184","https://openalex.org/W1963864458","https://openalex.org/W1557942024","https://openalex.org/W2047079415","https://openalex.org/W153126201","https://openalex.org/W1567014854"],"abstract_inverted_index":{"Current":[0],"algorithms":[1,31],"for":[2],"the":[3,29,33,36,54,65,69,85,88,90,118,123],"efficient":[4],"coding":[5,107],"of":[6,11,20,35,46,56,68,74,87],"images":[7],"generally":[8],"employ":[9],"one":[10],"two":[12],"techniques:":[13],"Vector":[14],"Quantization":[15],"or":[16,59],"Transform":[17],"Coding.":[18],"Both":[19],"these":[21,57],"methods":[22],"are":[23,109],"based":[24,80],"on":[25,122],"block":[26],"coding,":[27],"and":[28,115],"traditional":[30],"require":[32],"partitioning":[34],"original":[37],"image":[38,124],"into":[39],"a":[40,78],"number":[41],"of,":[42],"usually":[43],"square,":[44],"regions":[45,73],"uniform":[47],"size.":[48],"This":[49],"paper":[50],"explores":[51],"techniques":[52],"where":[53],"size":[55,86],"regions,":[58],"blocks,":[60,89],"is":[61,102],"varied":[62],"according":[63],"to":[64,83],"local":[66],"detail":[67,92],"image.":[70],"By":[71],"isolating":[72],"differing":[75],"detail,":[76],"using":[77],"quad-tree":[79],"segmentation":[81],"algorithm":[82],"control":[84],"low":[91],"areas":[93],"can":[94],"be":[95],"encoded":[96],"at":[97,111],"substantially":[98],"lower":[99],"rates":[100,112],"than":[101],"otherwise":[103],"possible.":[104],"Satisfactory":[105],"quality":[106],"results":[108],"achieved":[110],"between":[113],"0.35":[114],"0.4":[116],"bpp;":[117],"actual":[119],"rate":[120],"depends":[121],"being":[125],"encoded.":[126]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}