Naslov
Spatially Adaptive Wavelet Transform for Video Coding with Multi-Scale Motion Compensation

Autori
Mrak, Marta ; Izquierdo, Ebroul

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

Izvornik
Proceedings of the 2007 IEEE International Conference on Image Processing, ICIP 2007 / - , 2007

ISBN
1-4244-1437-7

Skup
2007 IEEE International Conference on Image Processing, ICIP 2007

Mjesto i datum
San Antonio (TX), Sjedinjene Američke Države, 16.09.2007. - 19.09.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
adaptive transforms; multi-scale compensation; scalable video coding

Sažetak
In this paper a technique that enables efficient synthesis of the prediction signal for application in multi-scale motion compensation is presented. The technique targets prediction of high-pass spatial subbands for motion compensation at higher scales. Since in the targeted framework these subbands are obtained by high-pass filtering of prediction signal in pixel domain, an adaptive approach for filtering is proposed to support decomposition of differently predicted frame areas. In this way an efficient application of different prediction modes at all scales used for compensation is enabled. Experimental results show that for fast sequences where such an application of different prediction modes is crucial, the proposed adaptive transform introduces significant objective and visual improvements.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA