Colloquium: Mobile Immersive Computing: A Tale of Two Applications

October 28, 2019 - 11:15am to 12:15pm
Bo Han
3-180 Keller Hall
Feng Qian

Abstract: Immersive computing creates a sense of immersion by blurring the boundary between the digital and the physical worlds. Typical immersive computing technologies include augmented reality (AR), virtual reality (VR), mixed reality (MR), 360-degree videos, volumetric videos, and so on. In this talk, I will first present several research challenges when consumers experience immersive media content on mobile devices. I will then introduce two applications that I have been recently working on, one related to augmented reality and another about volumetric video streaming. (1) SEAR is a collaborative framework for sharing experiences in AR. By intelligently sharing and caching the results of AR tasks when feasible and leveraging local compute resources on mobile devices, SEAR effectively optimizes the overall latency of AR and improves user-perceived Quality of Experience (QoE). (2) ViVo is a practical mobile volumetric video streaming system with several visibility-aware optimizations. ViVo judiciously determines the video content to fetch based on how, what and where a viewer perceives, with the goal of reducing bandwidth consumption for volumetric video streaming. I will conclude this talk by pointing out several opportunities and directions for further innovation.


Bio: Bo Han received his Ph.D. degree from the University of Maryland, the M.Phil. degree from City University of Hong Kong, and the Bachelor degree from Tsinghua University, all in computer science. He is a principal inventive scientist at AT&T Labs Research. His research interests are in the areas of mobile computing, wireless networking, and networked systems. He has published more than 60 research papers in prestigious international journals and conference proceedings. He is the co-inventor of more than 10 U.S. patents. He received a best paper nomination from ACM CoNEXT 2015 and the best paper award from ACM CoNEXT 2016.