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In the process of video transmission, packets loss may lead to the reconstruction distortion. When network coding is used for video transmission, the original error will cause propagation in the following nodes. To reduce the impact of error propagation, a random linear network coding (RLNC) based on the rate distortion is proposed to realize reliable video transmission. The method finds out the optimal...
Recently, scalable video coding technique has attracted a lot of attention for its desired scalable functionality and coding efficiency. H.264/SVC encodes a video in a hierarchical way by which the coded bit stream can satisfy terminals with different capability of display and different condition of network at the same time. However, the huge computational complexity of mode decision causes difficulties...
In this paper, a robust transmission scheme based on unequal error protection (UEP) with network coding for scalable video bit stream is studied. A dynamic random network model with Poisson distribution for single-source multicast network is set up. At the sender, the SVC bit stream is re-arranged according to its rate-distortion tradeoff within a GOP. Then rate allocation based on network coding...
A GOP-based state extraction algorithm for scalable video coding (SVC) is proposed to improve the video streaming transmission efficiency and reconstructed quality. According to the scalable features and internal relationship of SVC enhancement layers, we put forward a novel state model, based on which the SVC bit streams extraction algorithm employing the rate-distortion optimization method is presented...
How to protect the video streaming for reasonable usage is a necessary technology in multimedia services over network. However, most the previous schemes are too complicated and time-consuming to apply in real multimedia content protection system. Network Coding (NC) is a new technology which codes the input information at intermediate nodes and can make the network information flow achieve the upper...
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