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A real-time transport protocol for image-based rendering over heterogeneous wireless networks

机译:异构无线网络上基于图像的实时传输协议

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With the recent development of wireless communications and multimedia systems, 3D image-based scenes with photo-realistic rendered images and rendering performance have recently received a great deal of interests.In this paper, we focus upon 3D scenes streaming over heterogeneous wireless communication networks, and we propose a real-time transport protocol for streaming 3D scenes based rendered by image morphing. Our approach is based upon 2D images (i.e., subfunction of plenoptic function) which are taken as a representation of 3D scenes while the view morphing is used to render new images. Based on these assumptions, we have designed the real-time transport protocol (RTP) payload format and packetization schemes for streaming 3D image-based scenes. Furtheremore, in order to enhance the robutness of our streaming mechanism, a special packetization scheme has been developed and a feedback mechanism is proposed to deal wih the drastic changes of the wireless network bandwidth using a periodic feedback schema within the Real-time Control Protocol (RTCP).We discuss our proposed protocol and present an extensive set of simulation experiments to evaluate the performance of our protocol using a variery of real world senarios.
机译:随着无线通信和多媒体系统的最新发展,具有逼真的渲染图像和渲染性能的基于3D图像的场景最近引起了人们的极大兴趣。并且我们提出了一种实时传输协议,用于基于图像变形渲染的流3D场景。我们的方法基于2D图像(即全光功能的子功能),而2D图像被用作3D场景的表示,而视图变形用于渲染新图像。基于这些假设,我们为基于3D图像的流场景设计了实时传输协议(RTP)有效载荷格式和打包方案。此外,为了增强流机制的鲁棒性,已开发出一种特殊的打包方案,并提出了一种反馈机制,以使用实时控制协议中的周期性反馈方案来应对无线网络带宽的急剧变化( RTCP)。我们讨论了我们提出的协议,并提出了一组广泛的仿真实验,以使用各种现实世界的传感器来评估我们协议的性能。

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