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Low-bitrate video compression is a challenging task, particularly with the increasing complexity of video sequences. Re-shaping video data before its compression with modern hybrid encoders has provided interesting results in the low and ultra-low bit rate domains. In this work, we propose a novel saliency guided preprocessing approach, which combines adaptive re-sampling and background texture removal,...
With random linear network coding, mixed packets contain in their headers information about the coding operations performed on the original packets to allow their recovery by the receiver. This introduces an overhead that could be significant if the packet size is relatively small w.r.t. the size of the generation. In this paper, we propose to remove the part of the added header related to the network...
In distributed video coding, the reference frames are used to generate a side information at the decoder in order to decode the Wyner-Ziv frame. The quality of side information has a strong impact on the coding efficiency of distributed video coding. The estimation of the side information becomes less accurate when the temporal distance between the neighboring reference frames increases or when the...
Distributed video coding (DVC) does not demand motion estimation (ME) and compensation (MC) at the encoder, but only at the decoder and so it is more suitable for applications that require a simple encoder, like wireless sensor networks. In DVC the video sequence is split into Key Frames (KFs) and Wyner-Ziv Frames (WZFs): the first are intra-coded and the latter are coded by a channel code and only...
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