Naslov
Bit-stream Allocation Methods for Wavelet Based Scalable Video Coding

Autori
Žgaljić, Toni ; Šprljan, Nikola ; Izquierdo, Ebroul

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

Izvornik
Proceedings of the 2nd International Mobile Multimedia Communications Conference / - , 2006

Skup
2nd International Mobile Multimedia Communications Conference

Mjesto i datum
Alghero, Italija, 18.09.2006. - 20.09.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Data Compaction and Compression

Sažetak
In wavelet based scalable video coding quality scalability is achieved using bit-plane coding techniques that result in embedded bit-stream. In order to minimise distortion when specific bit-rate is targeted, compressed data has to be optimally truncated in different layers that comprise the bit-stream. In this paper two methods for compressed bit-stream allocation are presented. First adopts assumption that same fractional bit-planes within same bit-planes of different wavelet subbands have nearly equal rate-distortion slopes, while the other takes into account the distortion caused by the quantisation of wavelet coefficients. First method is characterised by low complexity since distortion does not have to be assessed. For the second method, a simple yet effective statistical distortion model is derived. The experimental results show comparable performance of the two tested methods.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA