{"id":"https://openalex.org/W1915064582","doi":"https://doi.org/10.1109/icassp.1987.1169554","title":"Low bit-rate image coding techniques","display_name":"Low bit-rate image coding techniques","publication_year":2005,"publication_date":"2005-03-24","ids":{"openalex":"https://openalex.org/W1915064582","doi":"https://doi.org/10.1109/icassp.1987.1169554","mag":"1915064582"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1987.1169554","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1987.1169554","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":"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/A5036139688","display_name":"K. S. Thyagarajan","orcid":null},"institutions":[{"id":"https://openalex.org/I26538001","display_name":"San Diego State University","ror":"https://ror.org/0264fdx42","country_code":"US","type":"education","lineage":["https://openalex.org/I26538001"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"K. Thyagarajan","raw_affiliation_strings":["Department of ECE, SDSU, San Diego, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of ECE, SDSU, San Diego, CA, USA","institution_ids":["https://openalex.org/I26538001"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076852218","display_name":"Mahesh Viswanathan","orcid":"https://orcid.org/0000-0001-7977-0080"},"institutions":[{"id":"https://openalex.org/I26538001","display_name":"San Diego State University","ror":"https://ror.org/0264fdx42","country_code":"US","type":"education","lineage":["https://openalex.org/I26538001"]},{"id":"https://openalex.org/I165799507","display_name":"Rensselaer Polytechnic Institute","ror":"https://ror.org/01rtyzb94","country_code":"US","type":"education","lineage":["https://openalex.org/I165799507"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M. Viswanathan","raw_affiliation_strings":["Department of ECE, SDSU, San Diego, CA, USA","EE Department, Rensselaer Polytechnic Institute, Troy, NY, USA"],"affiliations":[{"raw_affiliation_string":"Department of ECE, SDSU, San Diego, CA, USA","institution_ids":["https://openalex.org/I26538001"]},{"raw_affiliation_string":"EE Department, Rensselaer Polytechnic Institute, Troy, NY, USA","institution_ids":["https://openalex.org/I165799507"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5036139688"],"corresponding_institution_ids":["https://openalex.org/I26538001"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.09149668,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"12","issue":null,"first_page":"748","last_page":"751"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T10688","display_name":"Image and Signal Denoising Methods","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/T11019","display_name":"Image Enhancement Techniques","score":0.9976000189781189,"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/computer-vision","display_name":"Computer vision","score":0.6494489908218384},{"id":"https://openalex.org/keywords/homomorphic-filtering","display_name":"Homomorphic filtering","score":0.642533004283905},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6040335893630981},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5727484226226807},{"id":"https://openalex.org/keywords/dynamic-range","display_name":"Dynamic range","score":0.4893011748790741},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.4526599645614624},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.45001405477523804},{"id":"https://openalex.org/keywords/logarithm","display_name":"Logarithm","score":0.4415946900844574},{"id":"https://openalex.org/keywords/high-pass-filter","display_name":"High-pass filter","score":0.4278154969215393},{"id":"https://openalex.org/keywords/low-pass-filter","display_name":"Low-pass filter","score":0.40714532136917114},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.39006078243255615},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.34489643573760986},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.3348515033721924},{"id":"https://openalex.org/keywords/image-enhancement","display_name":"Image enhancement","score":0.2379048466682434}],"concepts":[{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6494489908218384},{"id":"https://openalex.org/C56683213","wikidata":"https://www.wikidata.org/wiki/Q4143008","display_name":"Homomorphic filtering","level":4,"score":0.642533004283905},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6040335893630981},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5727484226226807},{"id":"https://openalex.org/C87133666","wikidata":"https://www.wikidata.org/wiki/Q1161699","display_name":"Dynamic range","level":2,"score":0.4893011748790741},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.4526599645614624},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.45001405477523804},{"id":"https://openalex.org/C39927690","wikidata":"https://www.wikidata.org/wiki/Q11197","display_name":"Logarithm","level":2,"score":0.4415946900844574},{"id":"https://openalex.org/C156137958","wikidata":"https://www.wikidata.org/wiki/Q262754","display_name":"High-pass filter","level":4,"score":0.4278154969215393},{"id":"https://openalex.org/C44682112","wikidata":"https://www.wikidata.org/wiki/Q918242","display_name":"Low-pass filter","level":3,"score":0.40714532136917114},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.39006078243255615},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34489643573760986},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.3348515033721924},{"id":"https://openalex.org/C3017601658","wikidata":"https://www.wikidata.org/wiki/Q545981","display_name":"Image enhancement","level":3,"score":0.2379048466682434},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1987.1169554","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1987.1169554","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1753858816","https://openalex.org/W1940433659","https://openalex.org/W2117559445","https://openalex.org/W2121208181","https://openalex.org/W2134383396","https://openalex.org/W2539613124","https://openalex.org/W2553970755","https://openalex.org/W2913399920","https://openalex.org/W4244017338"],"related_works":["https://openalex.org/W2900322080","https://openalex.org/W4289532594","https://openalex.org/W2381132058","https://openalex.org/W2180182164","https://openalex.org/W3199970339","https://openalex.org/W2538987256","https://openalex.org/W1971030621","https://openalex.org/W1534884398","https://openalex.org/W2060574257","https://openalex.org/W5997988"],"abstract_inverted_index":{"This":[0],"paper":[1],"discusses":[2],"the":[3,35,46,51],"design":[4],"of":[5,34,67],"a":[6,32,68,79],"matrix":[7,88],"quantizer":[8,89],"to":[9,12,63,97],"be":[10],"used":[11],"encode":[13],"1)":[14],"homomorphically":[15],"processed":[16,93],"images,":[17],"and":[18,37,45,53,84],"2)":[19],"mean":[20],"subtracted":[21],"images.":[22],"An":[23],"image":[24,64],"obtained":[25],"by":[26,73],"optical":[27],"means":[28],"is":[29,43,56,95],"modeled":[30],"as":[31,61,101,103],"product":[33],"illumination":[36,41],"reflectance":[38,47],"components.":[39],"The":[40,58],"part":[42,48],"lowpass":[44],"which":[49],"reveals":[50],"edge":[52],"texture":[54],"details,":[55],"highpass.":[57],"homomorpphic":[59],"system":[60],"applied":[62],"processing":[65,77],"consists":[66],"logarithmic":[69],"point":[70],"transformation":[71],"followed":[72],"linear":[74],"filtering.":[75],"Homomorphic":[76],"achieves":[78],"simultaneous":[80],"dynamic":[81],"range":[82],"reduction":[83],"contrast":[85],"enhancement.":[86],"A":[87],"operating":[90],"on":[91],"such":[92],"images":[94],"shown":[96],"achieve":[98],"bit":[99],"rates":[100],"low":[102],"0.16":[104],"bpp":[105],"with":[106],"acceptable":[107],"quality.":[108]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}