Application of directionlets in video coding (CROSBI ID 547011)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Velisavljević, Vladan ; Mrak, Marta ; Kondoz, Ahmet
engleski
Application of directionlets in video coding
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.
Directional Transforms; Wavelets; Dirac Video Codec
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Podaci o prilogu
71-76.
2008.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 5th International Conference on Visual Information Engineering, VIE 2008
Institution of Engineering and Technology (IET)
978-0-86341-914-0
Podaci o skupu
5th International Conference on Visual Information Engineering, VIE 2008
predavanje
29.07.2008-01.08.2008
Xi’an, Kina