Naslov
Scalable Generation and Coding of Motion Vectors for Highly Scalable Video Coding

Autori
Mrak, Marta ; Šprljan, Nikola ; Abhayaratne, G.C.K. ; Izquierdo, Ebroul

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

Izvornik
Proceedings PCS 2004 / Van der Schaar, Mihaela - San Francisco (CA) : IEEE CAS, 2004

Skup
24th Picture Coding Symposium 2004, PCS 2004

Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 15.12.2004. - 17.12.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
-

Sažetak
One of the challenges of achieving highly scalable video coding (SVC) is the estimation and coding of motion vectors. In conventional video coders motion vectors are generated and lossless coded in a non-scalable manner. In SVC, motion vectors are estimated for the highest spatial resolution and they are scaled down at the decoder for lower spatial resolution accordingly. In such a case, the motion vectors cause a fixed cost irrespective of the decoding spatial resolution. In this paper we propose a simple, yet efficient, framework for scalable generation and scalable coding of motion information, for highly scalable video coding. This framework is based on the spatial resolution (scale) dependent precision limiting of motion vectors. The results show substantial improvements of spatial resolution scalability performance at low bit rates.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

Napomena
*Za potpuni opis nedostaju ključne riječi na hrvatskom i engleskom jeziku (admin)

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