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EURASIP Journal on Embedded Systems

, 2007:038631

Embedded Systems for Portable and Mobile Video Platforms

Abstract

The paper presents a multiple description MD video coder based on three-dimensional 3D transforms. Two balanced descriptions are created from a video sequence. In the encoder, video sequence is represented in a form of coarse sequence approximation shaper included in both descriptions and residual sequence details which is split between two descriptions. The shaper is obtained by block-wise pruned 3D-DCT. The residual sequence is coded by 3D-DCT or hybrid, LOT+DCT, 3D-transform. The coding scheme is targeted to mobile devices. It has low computational complexity and improved robustness of transmission over unreliable networks. The coder is able to work at very low redundancies. The coding scheme is simple, yet it outperforms some MD coders based on motion-compensated prediction, especially in the low-redundancy region. The margin is up to 3 dB for reconstruction from one description.

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Autor: Andrey Norkin - Atanas Gotchev - Karen Egiazarian - Jaakko Astola

Fuente: https://link.springer.com/



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