Overview
Recently, mobile video becomes extremely hot as witnessed by the boost of sales of video-capable portable devices. In this project, we study a specific together-viewing video application in which a higher (doubled) resolution video is played back across screens of two mobile devices placed side by side. Our motivation is not only to let users enjoy higher quality video through collaboration, but also make it natural for them enjoy it together, which facilitates discussion and consolidates the friendship. Since the marketing target is young couples, it is also called "Lover's Phone".
This new scenario imposes real-time, synchronous decoding and rendering requirement which is difficult to achieve because of the intrinsic complexity of video and the resource constraints such as processing power, battery life of mobile devices. We develop a novel, efficient collaborative half-frame decoding scheme and design a tightly coupled collaborative system architecture that aggregates resources of both devices to achieve the task. We have prototyped such application using commercially off-the-shelf mobile devices.
Project Members
- Guobin (Jacky) Shen
- Yongguang Zhang
- Visiting students that worked on this project
- Wenfeng Li (Arizona Statue Univ. USA)
- Yanlin Li (Tianjin Univ. China)
- Feng Hu (Wuhan Univ. China)
- Dayong Tao (Nanyang Tech Univ. Singapore)
Publications
- Guobin Shen, Yanlin Li, and Yongguang Zhang, "MobiUS: Enable Together-Viewing Video Experience across Two Mobile Devices", ACM/Usenix MobiSys 2007. [pdf]
Demos
- Latest update: A Scenario Movie
- Demo Sequences:
BestCap (320x240, 480x320)
SmallTrap (320x240, 480x320)
StepIntoLiquid (320x240, 480x320) - Video Demos:
Dopod 838 (BestCap and SmallTrap; Step Into Liquid)
HP iPAQ r6828 (BestCap and SmallTrap; Step Into Liquid)
Wireless and Networking Group | Microsoft Research Asia
