{"id":"https://openalex.org/W3191595588","doi":"https://doi.org/10.1109/medcomnet52149.2021.9501278","title":"Bitrate Reduction for Omnidirectional Video Streaming: Comparing Variable Quantization Parameter and Variable Resolution Approaches","display_name":"Bitrate Reduction for Omnidirectional Video Streaming: Comparing Variable Quantization Parameter and Variable Resolution Approaches","publication_year":2021,"publication_date":"2021-06-15","ids":{"openalex":"https://openalex.org/W3191595588","doi":"https://doi.org/10.1109/medcomnet52149.2021.9501278","mag":"3191595588"},"language":"en","primary_location":{"id":"doi:10.1109/medcomnet52149.2021.9501278","is_oa":false,"landing_page_url":"https://doi.org/10.1109/medcomnet52149.2021.9501278","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 19th Mediterranean Communication and Computer Networking Conference (MedComNet)","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/A5024309880","display_name":"Giuseppe Ribezzo","orcid":"https://orcid.org/0000-0003-3057-0904"},"institutions":[{"id":"https://openalex.org/I68618741","display_name":"Polytechnic University of Bari","ror":"https://ror.org/03c44v465","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Giuseppe Ribezzo","raw_affiliation_strings":["Politecnico di Bari, Bari, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Politecnico di Bari, Bari, Italy","institution_ids":["https://openalex.org/I68618741"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028924887","display_name":"Luca De Cicco","orcid":"https://orcid.org/0000-0002-8900-175X"},"institutions":[{"id":"https://openalex.org/I68618741","display_name":"Polytechnic University of Bari","ror":"https://ror.org/03c44v465","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Luca De Cicco","raw_affiliation_strings":["Politecnico di Bari, Bari, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Politecnico di Bari, Bari, Italy","institution_ids":["https://openalex.org/I68618741"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088011518","display_name":"Vittorio Palmisano","orcid":null},"institutions":[{"id":"https://openalex.org/I68618741","display_name":"Polytechnic University of Bari","ror":"https://ror.org/03c44v465","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Vittorio Palmisano","raw_affiliation_strings":["Politecnico di Bari, Bari, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Politecnico di Bari, Bari, Italy","institution_ids":["https://openalex.org/I68618741"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010345083","display_name":"Saverio Mascolo","orcid":"https://orcid.org/0000-0001-9686-5532"},"institutions":[{"id":"https://openalex.org/I68618741","display_name":"Polytechnic University of Bari","ror":"https://ror.org/03c44v465","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Saverio Mascolo","raw_affiliation_strings":["Politecnico di Bari, Bari, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Politecnico di Bari, Bari, Italy","institution_ids":["https://openalex.org/I68618741"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I68618741"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"6","issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11165","display_name":"Image and Video Quality Assessment","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/T11165","display_name":"Image and Video Quality Assessment","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":0.9997000098228455,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9886999726295471,"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/viewport","display_name":"Viewport","score":0.8508234024047852},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.813254177570343},{"id":"https://openalex.org/keywords/variable-bitrate","display_name":"Variable bitrate","score":0.7564048171043396},{"id":"https://openalex.org/keywords/encoder","display_name":"Encoder","score":0.5730165839195251},{"id":"https://openalex.org/keywords/omnidirectional-antenna","display_name":"Omnidirectional antenna","score":0.5673142671585083},{"id":"https://openalex.org/keywords/codec","display_name":"Codec","score":0.5415030717849731},{"id":"https://openalex.org/keywords/display-resolution","display_name":"Display resolution","score":0.5239030122756958},{"id":"https://openalex.org/keywords/video-quality","display_name":"Video quality","score":0.5161508321762085},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.5124988555908203},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.49739721417427063},{"id":"https://openalex.org/keywords/constant-bitrate","display_name":"Constant bitrate","score":0.4909372627735138},{"id":"https://openalex.org/keywords/quality-of-experience","display_name":"Quality of experience","score":0.4804203510284424},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4329252541065216},{"id":"https://openalex.org/keywords/variable","display_name":"Variable (mathematics)","score":0.41753703355789185},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.4127802550792694},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3464052677154541},{"id":"https://openalex.org/keywords/metric","display_name":"Metric (unit)","score":0.30092090368270874},{"id":"https://openalex.org/keywords/bit-rate","display_name":"Bit rate","score":0.260786771774292},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.23707500100135803},{"id":"https://openalex.org/keywords/display-device","display_name":"Display device","score":0.18256354331970215},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.18032068014144897},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.14525097608566284},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14352300763130188},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.08695930242538452}],"concepts":[{"id":"https://openalex.org/C2778090530","wikidata":"https://www.wikidata.org/wiki/Q2523931","display_name":"Viewport","level":2,"score":0.8508234024047852},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.813254177570343},{"id":"https://openalex.org/C57667952","wikidata":"https://www.wikidata.org/wiki/Q1154443","display_name":"Variable bitrate","level":3,"score":0.7564048171043396},{"id":"https://openalex.org/C118505674","wikidata":"https://www.wikidata.org/wiki/Q42586063","display_name":"Encoder","level":2,"score":0.5730165839195251},{"id":"https://openalex.org/C24027999","wikidata":"https://www.wikidata.org/wiki/Q2176348","display_name":"Omnidirectional antenna","level":3,"score":0.5673142671585083},{"id":"https://openalex.org/C161765866","wikidata":"https://www.wikidata.org/wiki/Q184748","display_name":"Codec","level":2,"score":0.5415030717849731},{"id":"https://openalex.org/C71597744","wikidata":"https://www.wikidata.org/wiki/Q12538706","display_name":"Display resolution","level":3,"score":0.5239030122756958},{"id":"https://openalex.org/C103910844","wikidata":"https://www.wikidata.org/wiki/Q2631256","display_name":"Video quality","level":3,"score":0.5161508321762085},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.5124988555908203},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.49739721417427063},{"id":"https://openalex.org/C34339180","wikidata":"https://www.wikidata.org/wiki/Q1325924","display_name":"Constant bitrate","level":4,"score":0.4909372627735138},{"id":"https://openalex.org/C2779333187","wikidata":"https://www.wikidata.org/wiki/Q3132648","display_name":"Quality of experience","level":3,"score":0.4804203510284424},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4329252541065216},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.41753703355789185},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.4127802550792694},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3464052677154541},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.30092090368270874},{"id":"https://openalex.org/C2987812609","wikidata":"https://www.wikidata.org/wiki/Q194158","display_name":"Bit rate","level":2,"score":0.260786771774292},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.23707500100135803},{"id":"https://openalex.org/C164597639","wikidata":"https://www.wikidata.org/wiki/Q327065","display_name":"Display device","level":2,"score":0.18256354331970215},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.18032068014144897},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.14525097608566284},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14352300763130188},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08695930242538452},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/medcomnet52149.2021.9501278","is_oa":false,"landing_page_url":"https://doi.org/10.1109/medcomnet52149.2021.9501278","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 19th Mediterranean Communication and Computer Networking Conference (MedComNet)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.5899999737739563}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1976676487","https://openalex.org/W2523901075","https://openalex.org/W2578588089","https://openalex.org/W2579692724","https://openalex.org/W2603175967","https://openalex.org/W2623027537","https://openalex.org/W2743147997","https://openalex.org/W2810658957","https://openalex.org/W2826107421","https://openalex.org/W2896840651","https://openalex.org/W2903429515","https://openalex.org/W2910957069","https://openalex.org/W2951255385","https://openalex.org/W2963439135","https://openalex.org/W2979629512","https://openalex.org/W3046007855","https://openalex.org/W3104262360"],"related_works":["https://openalex.org/W2097846364","https://openalex.org/W4367694084","https://openalex.org/W2114244888","https://openalex.org/W4386172477","https://openalex.org/W1687620409","https://openalex.org/W3174162042","https://openalex.org/W2280226702","https://openalex.org/W3011599222","https://openalex.org/W2663282472","https://openalex.org/W3191595588"],"abstract_inverted_index":{"Immersive":[0],"and":[1,14,48,149,172],"Extended":[2],"Reality":[3],"applications":[4],"are":[5],"getting":[6],"increasingly":[7],"popular":[8],"due":[9],"to":[10,67,86,96,115,144,164],"the":[11,22,26,42,46,49,60,73,88,91,100,140,146,161,166,177],"recent":[12],"improvements":[13],"wide":[15],"availability":[16],"of":[17,44,55,62,75,90,99,142],"Head":[18],"Mounted":[19],"Displays":[20],"in":[21,126,139],"mass":[23],"market.":[24],"Among":[25],"many":[27],"new":[28,113],"immersive":[29],"applications,":[30],"Omnidirectional":[31],"Video":[32],"Streaming":[33,38],"(OVS)":[34],"-":[35,39],"or":[36],"360\u00b0Video":[37],"is":[40,80],"attracting":[41],"attention":[43],"both":[45],"industry":[47],"research":[50],"community.":[51],"The":[52,130],"increased":[53],"immersivity":[54],"360\u00b0":[56,92],"videos":[57],"comes":[58],"at":[59,103],"cost":[61],"larger":[63],"bandwidth":[64,77],"requirements":[65],"compared":[66],"classic":[68],"2D":[69],"videos.":[70],"To":[71],"tackle":[72],"issue":[74],"reducing":[76],"requirements,":[78],"tiling":[79],"a":[81,107],"viable":[82],"technique":[83],"that":[84],"allows":[85],"encode":[87],"portions":[89],"video":[93],"most":[94],"likely":[95],"fall":[97],"outside":[98],"users'":[101],"viewport":[102],"lower":[104],"quality":[105,174,180],"using":[106,176],"higher":[108],"quantization":[109],"parameter.":[110],"Tiling":[111],"requires":[112],"encoders":[114],"be":[116],"used":[117],"which":[118],"however":[119],"do":[120],"not":[121,137],"have":[122],"available":[123],"hardware":[124],"decoders":[125],"mobile":[127],"devices":[128],"yet.":[129],"variable":[131],"resolution":[132,148],"approach":[133],"instead":[134],"shrinks":[135],"areas":[136],"falling":[138],"region":[141],"interest":[143],"decrease":[145],"overall":[147],"thus":[150],"allowing":[151],"bitrate":[152,170],"reduction":[153,171],"with":[154],"any":[155],"codec.":[156],"This":[157],"paper":[158],"quantitatively":[159],"compares":[160],"two":[162],"approaches":[163],"find":[165],"trade-offs":[167],"between":[168],"achievable":[169],"visual":[173,179],"measured":[175],"VMAF":[178],"metric.":[181]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
