{"id":144783,"date":"2025-10-11T11:12:05","date_gmt":"2025-10-11T09:12:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kodek-av2-prodemonstriroval-snizhenie-bitrejta-na-30-pri-urovne-kachestva-av1"},"modified":"2025-10-11T11:12:05","modified_gmt":"2025-10-11T09:12:07","slug":"kodek-av2-prodemonstriroval-snizhenie-bitrejta-na-30-pri-urovne-kachestva-av1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/kodek-av2-prodemonstriroval-snizhenie-bitrejta-na-30-pri-urovne-kachestva-av1","title":{"rendered":"De AV2-codec heeft een bitratereductie van 30% aangetoond met een kwaliteitsniveau van AV1.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Tijdens de QoMEX-conferentie (Quality of Multimedia Experience) werden in een van de lezingen de testresultaten van het videocodeerformaat AV2 gepresenteerd, dat wordt ontwikkeld door het Open Media-collectief (AOMedia) en de opvolger is van AV1. Bij het gebruik van de kwaliteitsbeoordelingsmetrics VMAF (Video Multi-Method Assessment Fusion), ontwikkeld door Netflix, werd met de AV2-codec een bitratereductie van 32,59% bereikt ten opzichte van de AV1-codec bij gelijkwaardige kwaliteitsniveaus. Bij het gebruik van de PSRN-YUV-metrics (Peak-Signal-to-Noise Ratio 14:1:1) kon de bitratreductie 28,63% bedragen. Voor de test werd versie AVM 11.0 met de referentie-implementatie van AV2 gebruikt.      <center><img decoding=\"async\" alt=\"De AV2-codec heeft een bitratereductie van 30% aangetoond met een kwaliteitsniveau van AV1.\" src=\"\/wp-content\/uploads\/2025\/10\/f46cd84736313bad19e504c070a53d29.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Het videocodeerformaat AV2 vereist geen licentiekosten en maakt het mogelijk om gerelateerde technologie\u00ebn, patenten en intellectueel eigendom gratis te gebruiken. Kenmerken van AV2 zijn: geoptimaliseerd voor gebruik bij streaming; aanzienlijke verbeteringen ten opzichte van AV1 in compressieprestaties; uitgebreide ondersteuning voor virtual en augmented reality; ondersteuning voor een breder spectrum van visuele kwaliteit; mogelijkheid voor gelijktijdige levering van meerdere video's binnen \u00e9\u00e9n videostream met ondersteuning voor hun afzonderlijke weergave op het scherm.     <center><img decoding=\"async\" alt=\"De AV2-codec heeft een bitratereductie van 30% aangetoond met een kwaliteitsniveau van AV1.\" src=\"\/wp-content\/uploads\/2025\/10\/51171899dd3e545822eddc5d7fbe709f.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>        <\/p>\n<p>AV2 blijft een hybride blok-gebaseerde structuur gebruiken, maar in tegenstelling tot AV1 ondersteunt het grotere superblokken van 256&#215;256, volledig recursieve partitionering en een effici\u00ebnter scheiden van helderheid en kleurparameters. In AV2 komt een uniforme exponenti\u00eble quantizer aan bod die een breder bereik van helderheid dekt en een grotere nauwkeurigheid van quantisering biedt voor 8-, 10- en 12-bits video, en beter omgaat met lage bitrates.    <\/p>\n<p>De mogelijkheden voor het voorspellen van interframe-wijzigingen zijn uitgebreid, waardoor het beter de veranderingen in helderheid en kleur kan modelleren. Het houdt rekening met maximaal 7 vorige frames in het model, ondersteunt temporale interpolatie en verwerkt beweging beter in video's met hoge resolutie of snel veranderende inhoud. Er zijn extra filters toegevoegd om ruis te onderdrukken, compressieartefacten te verminderen en detailweergave te behouden. Het is opgemerkt dat het werk aan de AV2-codec en de referentie-implementatie al is voltooid, maar dat de specificatie nog verfijnd moet worden, waarvan de definitieve versie aan het einde van het jaar wordt gepubliceerd.          <center>  <div class=\"youtube-placeholder\" data-id=\"f0ivgL8vu9w\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/f0ivgL8vu9w\/hqdefault.jpg\" alt=\"Video afspelen\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\n<br \/>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64033\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 QoMEX (Quality of Multimedia Experience) \u0432 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 \u0434\u043e\u043a\u043b\u0430\u0434\u043e\u0432 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV2, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0430\u043b\u044c\u044f\u043d\u0441\u043e\u043c Open Media (AOMedia) \u0438 \u0438\u0434\u0443\u0449\u0435\u0433\u043e \u043d\u0430 \u0441\u043c\u0435\u043d\u0443 \u0444\u043e\u0440\u043c\u0430\u0442\u0443 AV1. \u041f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043c\u0435\u0442\u0440\u0438\u043a \u043e\u0446\u0435\u043d\u043a\u0438 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 VMAF (Video Multi-Method Assessment Fusion), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Netflix, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043a\u043e\u0434\u0435\u043a\u0430 AV2 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u0430 \u043d\u0430 32.59% \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u043a\u043e\u0434\u0435\u043a\u043e\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":144784,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-144783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 QoMEX (Quality of Multimedia Experience) \u0432 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 \u0434\u043e\u043a\u043b\u0430\u0434\u043e\u0432 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 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