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Joint source-channel decoding (JSCD) exploits residual redundancy in compressed bitstreams to improve the robustness to transmission errors of multimedia coding schemes. This paper proposes an architecture to introduce some additional side information in compressed streams to help JSCD. This architecture exploits a reference decoder already present or introduced at the encoder side. An application...
In this paper, we propose a joint source-channel (JSC) decoding scheme for 3D ESCOT-based video coders, such as Vidwav. The embedded bitstream generated by such coders is very sensitive to transmission errors unavoidable on wireless channels. The proposed JSC decoder employs the residual redundancy left in the bitstream by the source coder combined with bit reliability information provided by the...
The real-time applications have a growing complexity and size which have to be well controlled. They can be viewed as a set of synchronized tasks, communicating and sharing critical resources. One of the main difficulties in the real-time application design is time constraints meeting. All tasks have to be running before their predefined deadlines. At this level, the integration of real time operating...
Actually, SoC design is based on the reuse of Intellectual Property (IP). Designer's attempts such as flexibility, cost constraints, high performance and time to market can thus be helpfully managed. However, the correct integration of the generated architectures/components in a design implies complex verification and design problems. Since IPs are heterogeneous, the design of communication interfaces...
Generally, video signal has high temporal redundancies due to the high correlation between successive frames. Actually, this redundancy has not been exploited enough by current video compression techniques. In this paper, we present a new video compression approach which tends to hard exploit the pertinent temporal redundancy in the video frames to improve compression efficiency with minimum processing...
The embedded systems are more and more complex. They must answer to contradictory constraints. Indeed, these systems integrate new functionalities that require high performance architectures. At the same time, these systems must be flexible and adaptive since they work in a fluctuating environment and have a quite unpredictable workload. In order to answer to all these constraints, we propose a new...
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