H.264/AVC yra pagrįstas tradicinėmis vaizdo kodavimo sąvokomis, bet palyginti su ankstesniais standartais, su svarbiais tam tikrais skirtumais.Reikšmingiausi skirtumai yra padidintas judėjimo apskaičiavimo pajėgumas, mažas bloko dydis su tikslia transformacija, adaptyvus blokų mažinimo filtras ir patobulinti entropijos kodavimo metodai. palygintų su MPEG-2. H.264/AVC pasiekia daugiau kaip 50 procentų, kodavimo prieaugį palyginus su MPEG-2 visuose PSNR situacijose. H.264/AVC standartas dirba žymiai geriau už visus ankstesnius standartus, dėl padidėjusio kodavimo lankstumo ir sudėtingumo. / Video coding is the entire process of compressing and decompressing of a digital video signal. Then the mainstream video compression tools developed in the past several years by both Video Coding Experts Group (VCEG) and Moving Picture Experts Group (MPEG) are briefly introduced. Since its invention from early 1990 modern digital video compression techniques have played an important role in the world of telecommunication and multimedia systems where bandwidth is still a valuable commodity. Evolution from the early MPEG-1/H.261 to the current H.264/AVC video codec gradually improves the coding efficiency at the cost of design complexity. Compared with its prior standards the H.264/AVC is able to achieve nearly doubled coding gain, while the encoder's and decoder's complexity increase 5 – 10 and 2 – 3 times respectively.
| Identifer | oai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2012~D_20131104_110234-26740 |
| Date | 04 November 2013 |
| Creators | Kriščiūnas, Eugenijus |
| Contributors | Jusas, Vacius, Matulis, Darius, Kaunas University of Technology |
| Publisher | Lithuanian Academic Libraries Network (LABT), Kaunas University of Technology |
| Source Sets | Lithuanian ETD submission system |
| Language | Lithuanian |
| Detected Language | English |
| Type | Master thesis |
| Format | application/pdf |
| Source | http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2012~D_20131104_110234-26740 |
| Rights | Unrestricted |
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