Naslov
Motion Driven Adaptive Transform Based on Wavelet Transform for Enhanced Video Coding

Autori
Šprljan, Nikola ; Mrak, Marta ; 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
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Data Compaction and Compression

Sažetak
Spatial wavelet transform in video coding has traditionally been applied in a non-adaptive fashion. However, since motion compensation introduces specific structure into video frames, adaptive spatial transform can introduce additional coding gain. As the structure introduced by motion compensation depends on applied motion parameters, the same motion information can be used as an adaptation parameter in spatial decomposition. Specifically, in this paper motion driven adaptation on wavelet transform in its lifting implementation is proposed. The introduced computational complexity of the proposed method is low as only a few additional multiplications are introduced per lifting step. Since in this case the same motion information is available at both encoder and decoder, transmission of additional side information is not needed. Besides better energy compaction, the proposed scheme introduces considerable gain when applied in scalable video coding.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA