誤り耐性を有するマルチビュー映像ストリーミングに関する研究

容错多视视频流研究

• 批准号: 12J01946
• 负责人: 劉 志
• 金额: $ 1.86万
• 依托单位: Waseda University (2014)The Graduate University for Advanced Studies (2012-2013)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12J01946/
• 关键词: video streaming; multipath; energy consumption; hetnet; interference; multiview; マルチビュービデオ; ビデオストリーミング; DIBR; マルコフ決定過程; 多重記述符号化; フレーム修復; battery life; distributed source coding

Multiview is expected to be the next generation visual communication and multi-view is one of the fundamental problems for various applications such as free viewpoint TV.In free viewpoint video transmission, users can select any view angle he prefers. To provide the free viewpoint selection, server will send the two nearest neighboring view in texture plus depth format upon user’s view request, so that the user can synthesize the view at the requested viewing angle afterwards using the depth image based rendering (DIBR) techniques. To handle the burst-loss prone wireless channels, we proposed to transmit the video contents over two paths after encoding them using the multiple descriptions coding (MDC) for the free viewpoint video streaming. The related results have been accepted to IEEE Journal of Selected Topics in Signal Processing.Orthogonally, battery life consumption is critical for mobile users, how to balance the energy consumption and the received video quality becomes a serious problem. We investigate this problem and publish the results in Journal of Network and Computer Applications.HetNets is a major topic in 4G and 5G. How to deliver the video in the scenarios composed of multiple cells (base station) will be become an important issue. The challenges exist in how to coordinate the intercell inferences given users’ diverse video requests. Some preliminary results have been published in IEEE VTC2014 spring and an extension is under submission.At the same time, we are looking for more applications of the multi-view such as for the museum exhibition.

多视图有望成为下一代视觉通信，而多视图是自由视点电视等各种应用的基本问题之一。在自由视点视频传输中，用户可以选择他喜欢的任何视角。为了提供自由的视点选择，服务器将根据用户的视图请求以纹理加深度格式发送两个最近的相邻视图，以便用户随后使用基于深度图像的渲染（DIBR）技术以请求的视角合成视图。为了处理容易发生突发丢失的无线信道，我们建议在使用自由视点视频流的多重描述编码（MDC）对视频内容进行编码后，通过两条路径传输视频内容。相关成果已被IEEE Journal of Selected Topics in Signal Processing接收。正交地，电池寿命消耗对于移动用户来说至关重要，如何平衡能耗和接收视频质量成为一个严重的问题。我们研究了这个问题，并将结果发表在《网络与计算机应用杂志》上。HetNets 是 4G 和 5G 的一个主要主题。如何在多个小区（基站）组成的场景下进行视频传送将成为一个重要的问题。挑战在于如何根据用户不同的视频请求协调小区间的推理。一些初步结果已在IEEE VTC2014 spring上发表，扩展正在提交中。同时，我们正在寻找多视图的更多应用，例如博物馆展览。

项目成果

Resource allocation for WWAN video multicast with cooperative local repair

• DOI: 10.1109/icc.2013.6655572
• 发表时间: 2013-06
• 期刊: 2013 IEEE International Conference on Communications (ICC)
• 作者: Zhi Liu;Yu Mao;N. Lu;Yusheng Ji;Xuemin Shen

Adaptive energy-aware free viewpoint video transmission over wireless networks

• DOI: 10.1109/iccnc.2014.6785323
• 发表时间: 2014-04
• 期刊: 2014 International Conference on Computing, Networking and Communications (ICNC)
• 作者: Zhi Liu;Jingyun Feng;Yusheng Ji;Yongbing Zhang

Video Streaming for Highway VANET Using Scalable Video Coding

• DOI: 10.1109/vtcfall.2014.6966228
• 发表时间: 2014-12
• 期刊: 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)
• 作者: Ruijian An;Zhi Liu;Yusheng Ji

Multiple Description Coding of Free Viewpoint Video for Multi-Path Network Streaming

多路径网络流的自由视点视频的多重描述编码

• 发表时间: 2012
• 作者: Z. LIU;G. CHEUNG;J. CHAKARESKI;Y. JI
• 通讯作者: Y. JI

Multi-path Transmission for Picocell Edge Users in LTE-Advanced Heterogeneous Networks

LTE-Advanced 异构网络中 Picocell 边缘用户的多路径传输

• 发表时间: 2015
• 作者: Zhi Liu;Bo Gu;Lei Zhong;Yusheng Ji;Yohiaki Tanaka
• 通讯作者: Yohiaki Tanaka