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hevc ghap QIj h.265

Mar 26, 2016

nuq 'oH hevc ghap h.265?

jen Efficiency Video ngoq ((hevc)), je known je h.265, chu' video compression Hol, Hach pemvaD Collaborative Team Video ngoq (jct-vc).  ghItlhvam video encode po' vo' je qem nItebHa' jct-vc around, qo' lIng Vas motlh naD pong cha' motlh porgh 'e';

· h.265 motlh publishes itu-rut HaD ghom 16 – Video ngoq po' ghom ((vceg)) – je itu-rut h.265, je

· iso ghap iec jtc 1 ghap sc 29 ghap wg ghom po' ghotvetlhDaq mIllogh 11 hevc motlh publishes (mpeg) – je iso ghap iec 23008-2.

ratified pImchugh chuqmey poHmey version h.265/hevc Hol neH january, 2013.

Hach hevc cha'logh compression efficiency previous motlh, h.264 DuHIvDI' 'oHba' ghap avc.  naH jajmeymaj Sar compression efficiency ghot'e' depending on 'a ghIH encoder settings 'ej Segh, DeSDu' typical consumer video distribution bit rates hevc motlh nobmeH video compress cha'logh je efficiently je avc.  'utmo' Dujvam Dub compression efficiency qaStaHvIS cha' mIw wa' (pagh batlhchaj combination 'op); laH SuD end-users

· DeSDu' nIb patlh visual laHlIj, video compressed ghot tu'lu'. mej bID size (pagh bID bit rate) avc, vaj teywI' qar enables hevc pagh

· HeghDI' size teywI' rap bit pagh compressed rate je avc, significantly Dunmo' laHlIj visual HIj hevc.

chay' laH video teywI' encode hevc cha'logh je efficiently je previous video, motlh ngoq?

· vo' HochHom video compression motlh HoS technique Sov je ghotvetlhDaq compensated chenpu'DI' 'u' woj law'.  encoded pixels bot pong reference latlh mIchHom chenmoH neH rap Dalbogh (intra-chenpu'DI' 'u' woj law'), ngaghwI' latlh Dalbogh (inter-chenpu'DI' 'u' woj law').  nuqDaq macroblocks porghDaj moH pixels × 16 16 defines h.264/avc, mamej weghbogh range bot sizes, Da'elDI' 64 x 64 pixels laH Del hevc.

· predict bot ngoq qaStaHvIS pIm bot sizes puS Qagh residual chaw' hevc.  wa'DIch ngoq Hoch yor patlh unit (pagh ctu,) ngoq je chenpu'DI' 'u' woj law' quad-Sor, nuqDaq DeSDu' Hoch natlhlu'mo' jotlhmeH encode merge ghap skip, Hotlhlu'bogh ghap maH, wuq encoder pagh intra ngoq. vaj ngoq residual vo' chenpu'DI' 'u' woj law' je cha'DIch quad-Sor laH optionally matay'DI' natlhlu'mo' puS chenpu'DI' 'u' woj law' quad-Sor jechlaHbe'bogh.  instance residual chaw' ngoq ngoq unit (cu) 'oS pong mixture 16 × 16, 8 × 8 je 4 × 4 transforms Hotlhlu'bogh ghap maH vo' 32 × 32 Qagh.

·  ghotvetlhDaq vectors je be'nI'puqDaj matay'DI' precision, laH encode hevc nob net poQbej predict puS qup residual Qagh.  35 intra-mIllogh lurgh, compared je neH 9 h.264/avc tu'lu'.

· Adaptive ghotvetlhDaq Vector chenpu'DI' 'u' woj law', chu' method, inter-chenpu'DI' 'u' woj law' Dub DaH nobvam hevc.

· Dub deblock filter

· sample Adaptive Offset – Saturjaj filter artifacts DeSDu' bot HeH reduces