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Application of directionlets in video coding

Velisavljevic, V, Mrak, M and Kondoz, A (2008) Application of directionlets in video coding In: 5th VIE 2008, 2008-07-29 - 2008-08-01, Xian, China.

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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.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions : Surrey research (other units)
Authors :
Velisavljevic, V
Mrak, M
Date : 2008
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 11:20
Last Modified : 23 Jan 2020 16:45

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