Naslov
Picture Quality in Multimedia Windows Environment

Autori
Bauer, Sonja ; Zovko-Cihlar, Branka ; Grgić, Mislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings VITEL'96 / Jagodič, Marko - Ljubljana : Electrotechnical Association of Slovenia (EZS), 1996, 223-229

Skup
International Telecommunications Symposium VITEL'96

Mjesto i datum
Ljubljana, Slovenija, 07.10.1996. - 08.10.1996

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
picture quality; redundancy reduction; subjective assessment

Sažetak
Digital video systems operate in different ways from analogue systems with the consequence that a quite different set of picture impairments may be introduced. Impairments may occur both from the conversions to and from the digital domain and by degradation of the digital signal itself. Errors in the digital domain depend on the methods of coding and redundancy reduction employed. The Moving Picture Experts Group (MPEG) coding algorithm, uses both interframe and intraframe coding to reduce temporal and spatial redundancy and achieve high quality full motion video at low bit rates. That makes the MPEG-1 codec especially viable in multimedia applications. MPEG-1 video compression is presently more increasingly accepted as a tool that brings digital video and computers together because MPEG-1 compression cards (hardware) and software are available for integrating digital video into workstations or personal computers. With the increasing applications of MPEG coding the assessment of MPEG coding impairments becomes very important. Subjective methods for convenient television picture quality and impairment assessment given in ITU-R Rec.BT.500-4 can be applied to MPEG codec but the test sequences should be chosen very carefully with different types of movement and including different camera operation. The aim of this paper is to present results of picture quality assessment in relation to impairments from MPEG-1 coding for workstation and personal computer applications where pictures are displayed within a window on a monitor.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA