Best paper award for Francesca de Simone at ACM MMSys 2018
Publication date: 21-06-2018
On 14 June Francesca De Simone of CWI’s DIS group has been awarded with the Best Paper Award at the the ACM Multimedia Systems Conference (MMSys 2018), for the paper “Dynamic Adaptive Streaming for Multi-Viewpoint Omnidirectional Videos”, co-authored with Xavier Corbillon (IMT Atlantique, France), Gwendal Simon (IMT Atlantique, France) and Pascal Frossard (EPFL, Switzerland).
Full immersion inside a Virtual Reality scene requires six Degrees of Freedom (6DoF) applications where the user is allowed to perform translational and rotational movements within the virtual space. The implementation of 6DoF applications is however still an open question. In this paper, the authors study a multi-viewpoint 360-degree video streaming system, where the user can switch positions to predefined viewpoints. The challenges, in terms of video encoding and implementation of viewpoint switching, are identified, and multiple video-segment download strategies for an adaptive streaming client are modelled into Mixed Integer Linear Programming problems. The results emphasize the importance of predicting user navigation patterns in 6DoF scenarios and modelling the impact of switching delay on the subjective Quality of Experience, to reduce the bandwidth consumption.
CWI’s Distributed and Interactive Systems (DIS) research group focuses on facilitating and improving the way people access media and communicate with others and with the environment. They address key problems for society and science, resulting from the dense connectivity of content, people, and devices. The group uses recognized scientific methods, following a full-stack, experimental, and human-centered approach.