Systematic analysis of the decoding delay in multiview video |
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| Affiliation: | 1. Department of Mathematics, Yibin University, Yibin, Sichuan 644007, China;2. School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China;1. Fraunhofer Institute for Integrated Circuits, IIS, Erlangen, Germany;2. Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, Berlin, Germany;3. Technische Universität Berlin, Germany;1. Graduate Institute of Networking and Multimedia, National Taiwan University, Taiwan, Republic of China;2. Department of Computer Science and Information Engineering, National Taiwan University, Taiwan, Republic of China;1. Department of Electronic and Information Engineering, Huazhong University of Science and Technology, Wuhan, China;2. School of Computing, National University of Singapore, Singapore |
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| Abstract: | We present a framework for the analysis of the decoding delay in multiview video coding (MVC). We show that in real-time applications, an accurate estimation of the decoding delay is essential to achieve a minimum communication latency. As opposed to single-view codecs, the complexity of the multiview prediction structure and the parallel decoding of several views requires a systematic analysis of this decoding delay, which we solve using graph theory and a model of the decoder hardware architecture. Our framework assumes a decoder implementation in general purpose multi-core processors with multi-threading capabilities. For this hardware model, we show that frame processing times depend on the computational load of the decoder and we provide an iterative algorithm to compute jointly frame processing times and decoding delay. Finally, we show that decoding delay analysis can be applied to design decoders with the objective of minimizing the communication latency of the MVC system. |
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| Keywords: | Three-dimensional video Multiview video coding Video conference Low latency Decoding delay Parallel processing Graph theory Process scheduling |
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