Enabler for Next-Generation Mobile Video Applications

正在开发的高效视频编码（HEVC）标准是下一代视频压缩标准，由于与当前标准相比预期的高压缩效率，该标准注定要彻底改变视频应用的世界。然而，为了将愿景变为现实，需要大量的研究工作，因为HEVC仍处于早期标准化阶段，并且对联网HEVC应用的研究很少。所提出的项目以新兴且具有挑战性的联网范例（多宿主移动的网络）中的移动的HEVC视频递送为目标，多宿主网络是具有多个移动的用户的移动网络（例如，公共交通工具上的乘客）。多宿移动的网络可以接入多个互补无线网络，例如3G及更高版本、WiFi和WiMAX，每个互补无线网络提供到管理整个移动网络的多宿和移动性的机载多宿移动的路由器的不同网络路径。与单独的多宿主移动的主机相比，多宿主移动的网络的显著优点是移动的用户的设备不需要是多宿主的或移动性感知的。这种多宿主和移动性透明性大大降低了对用户设备的要求以及部署和操作这种系统的成本。所提出的研究将尝试在多宿主移动的网络中的移动的用户与基础设施之间实现双向实时视频传输，以支持用于商业、娱乐、安全、安保或其他目的的各种应用和服务。典型的应用场景是在公共交通环境中。在这种情况下，机上乘客接收从HEVC媒体服务器流式传输的高质量下行链路基于HEVC的视频。与此同时，实时车载场景由摄像头捕获，由HEVC编码器编码，并向上传输到监控站，用于公共安全和事件管理。预计通过所提出的研究，与最新标准H. 264高级视频编码（AVC）和可伸缩视频编码（SVC）相比，移动的用户的体验质量（QoE）将得到显著改善。所提出的研究可以很容易地采用在一系列的应用场景，如智能交通系统，紧急/紧急管理，远程医疗，个人区域网络，家庭和露营娱乐。因此，有强烈的技术和经济需要进一步研究的理论和应用所提出的课题。此外，与高通公司共同参与JCT-VC会议将使我们能够在移动的HEVC应用中设定基准，并为HEVC的标准化做出贡献，这将产生长期的全球影响。传播和开发计划将向学术界和公司（如AIMS（INT）Ltd.，该项目的另一个合作伙伴）与视频网络应用有关，以开发潜在的商业产品开发。

The High Efficiency Video Coding (HEVC) standard under development is the next-generation video compression standard, which is destined to revolutionise the world of video applications thanks to the expected high compression efficiency compared with the current standard. Nevertheless, to turn the vision into reality, substantial research efforts are necessitated since HEVC is still at its early standardisation stage and there is little research on networked HEVC applications. The proposed project targets mobile HEVC video delivery in an emerging and challenging networking paradigm, multihomed mobile networks, which are moving networks with a number of mobile users onboard (e.g., passengers on public transport vehicles). A multihomed mobile network has access to multiple complementary wireless networks such as 3G and beyond, WiFi and WiMAX, each of which provides a different network path to onboard multihomed mobile routers managing the multihoming and the mobility of the whole moving network. Compared with individual multihomed mobile hosts, a distinctive advantage of a multihomed mobile network is that the mobile users' devices do not need being multihomed or mobility aware. Such multihoming and mobility transparency substantially reduces the requirements on users' devices and the costs for deploying and operating such a system. The proposed research will attempt to enable bi-directional real-time video transmission between the mobile users within a multihomed mobile network and the infrastructure to support various applications and services for business, entertainment, safety, security or other purposes. A typical application scenario is in the public transportation context. In this case, the onboard passengers receive high-quality downlink HEVC-based video streamed from an HEVC media server. Meanwhile, the live onboard scenes are captured by a camera, encoded by an HEVC encoder, and streamed upwards to a monitoring station for public security and incident management. It is expected that the mobile user's quality of experience (QoE) will be significantly improved compared with latest standards H.264 Advanced Video Coding (AVC) and Scalable Video Coding (SVC) through the proposed research. The proposed research can be easily adopted in a range of application scenarios such as intelligent transportation systems, emergency/urgency management, telemedicine, personal area networks, and home and camping entertainment. Therefore, there is a strong technological and economic need for further research into the theory and application of the proposed topic. Moreover, joint contributions with Qualcomm to the JCT-VC meetings will enable us to set benchmarks in mobile HEVC applications and contribute to the standardisation of HEVC, which can lead to a long-lasting global impact. Dissemination and exploitation plans will promote the research outcome to the academic community as well as companies (such as AIMS (INT) Ltd., another partner of the project) related to video networking applications to exploit potential commercial product development.