Context-aware frame rate adaption for video chat on smartphones

Authors:
Xin Qi;Qing Yang;David T. Nguyen;Gang Zhou
Affiliations:
College of William and Mary, Williamsburg, VA, USA;College of William and Mary, Williamsburg, VA, USA;College of William and Mary, Williamsburg, VA, USA;College of William and Mary, Williamsburg, VA, USA
Venue:
Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication
Year:
2013

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Abstract

As mobile video traffic is becoming dominant, balancing the mobile video quality and bandwidth usage is a relevant but hard problem. Particularly, in this project, we attempt to reduce the bandwidth usage of video chats through frame rate adaption. The key idea of this project is to save bandwidth through reducing frame rate at the sender and interpolate the `missing' frames at the receiver for a video chat. Additionally, the sender dynamically adapts the frame rate with respect to inertial sensor readings in order to keep the scene change between consecutive frames small and prevent strong artifacts from the frame interpolation.