20.500.12556/DKUM-24447 VIDEO KODIRNIKI V SODOBNIH AVDIOVIZUALNIH STORITVAH VIDEO CODECS IN NEXT GENERATION AUDIO/VIDEO SERVICES V magistrskem delu smo predstavili arhitekturo sodobnih komunikacijskih sistemov in avdiovizualne storitve. V okviru tega smo podali osnovne značilnosti kodirnikov ter ocenili njihovo kvaliteto ob različnih naborih vhodnih parametrov. Ocenjevali smo naslednje kodirnike: MPEG-2, MPEG-4 part 10 oziroma H.264, VC-1, H.263 in VP8. V drugem delu smo opravili teste, kjer smo posamezne kodeke ocenjevali subjektivno in objektivno. Za subjektivno ocenjevanje smo podali svoje mnenje o kvaliteti posnetka, medtem ko smo objektivno ocenjevanje opravili s pomočjo programa ImageMagick. Ta nam je na posameznih slikah ponazoril predele, kjer so napake. Najboljše rezultate smo dosegli s kodeki VP8, H.264 in H.263. In this master's thesis we present the architecture of modern communication systems and audiovisual services. In this context, we give the basic characteristics of the encoders and we evaluate their quality at different sets of input parameters. We evaluate the following encoders: MPEG-2, MPEG-4 part 10 or H.264, VC-1, H.263 and VP8. In the second part, we do tests where we evaluate individual codecs subjectively and objectively. For subjective evaluation, we give the opinion on the quality of video and the objective evaluation we did with the program ImageMagick. This program illustrate the areas on several pictures where are the errors. The best results were achieved with the codecs VP8, H.264 and H.263. Video kodeki avdio kodeki video klic videokonference IMSDroid Boghe subjektivno in objektivno vrednotenje Video codecs audio codecs video call videoconferencing IMSDroid Boghe subjective and objectiv evaluation true true false [K. Repolusk] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2012-05-29 16:10:40 2012-07-03 08:28:37 2022-04-14 21:37:16 2024-01-01 03:35:56 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.396/.398(043) 16382742 URN:SI:UM:DK:M7OTJWGD MAG_Repolusk_Klavdijo_2012.pdf MAG_Repolusk_Klavdijo_2012.pdf 1 E9BBA4258F8EA46B7AD18BB503DF1877 d0d69caa2491447cbfe06b1f571f9b50fed2927f9732fecb5f408f1e8832d568 9e9741f0-7c07-11eb-bb7a-00155d0001ca 20.500.12556/dkum/fa5ef6da-c481-4d56-8749-95a7e081af64 https://dk.um.si/Dokument.php?lang=slv&id=46129 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0