Mr. Dan Miao Profile

Dan Miao

at University of Science and Technology of China

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Proceedings Article | 26 September 2013 Paper

Low-delay cloud-based rendering of free viewpoint video for mobile devices

Dan Miao, Wenwu Zhu, Chang Wen Chen

Proceedings Volume 8856, 88560C (2013) https://doi.org/10.1117/12.2023177

KEYWORDS: Mobile devices, Clouds, Video, Switching, Video compression, Visualization, Switches, 3D vision, 3D image processing, Virtual colonoscopy

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Free viewpoint video (FVV) provides immersive experiences in a truly seamless environment. Cloud computing facilitates the possibility to watch the FVV on mobile devices through the remote rendering in which the synthesis view is rendered in cloud server and transmitted to mobile devices. However, how to reduce the interaction delay during the viewpoint switching is a challenging problem in the remote rendering. In this paper, we propose a low-delay cloud-based FVV rendering framework to support FVV on mobile devices with satisfactory video quality and low interaction delay. In our framework, the rendering allocation scheme is proposed in which the local rendering is introduced on mobile devices during the viewpoint switching to conceal the interaction delay. To support the local rendering, the side information is generated based on the viewpoint prediction and 3D warping rule in cloud and then compressed by standard video codec. The experiment results show that the proposed remote rendering framework can improve the quality of experience substantially with improved free viewpoint video quality and low interaction delay on mobile devices.

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