Naslov
Application of directionlets in video coding

Autori
Velisavljević, Vladan ; Mrak, Marta ; Kondoz, Ahmet

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

Izvornik
Proceedings of the 5th International Conference on Visual Information Engineering, VIE 2008 / - : Institution of Engineering and Technology (IET), 2008, 71-76

ISBN
978-0-86341-914-0

Skup
5th International Conference on Visual Information Engineering, VIE 2008

Mjesto i datum
Xi’an, Kina, 29.07.2008. - 01.08.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Directional Transforms; Wavelets; Dirac Video Codec

Sažetak
The goal of the presented work is to apply a directionally-adaptive two-dimensional separable wavelet transform, called directionlets, in common wavelet-based video coders. So far, directionlets have been used only in still image coding, where they have provided a sparser representation of images in the transform domain and a better compression performance. We apply directionlets to frames of video sequences in the video coding scheme based on the Dirac video codec. The novel method outperforms the traditional non-adaptive method based on the standard wavelet transform in terms of both the rate-distortion performance and the visual quality of reconstructed sequences.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA