Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14476
Title: Performance Evaluation of Scalable Distribution of Omni-Directional Video Sequences using H.264
Other Titles: Technical Report
Authors: QUAX, Peter 
ISSARIS, Takis 
LIESENBORGS, Jori 
LAMOTTE, Wim 
Issue Date: 2012
Publisher: EDM UHasselt
Abstract: In this paper, we present a scalable solution for distributing omni-directional video sequences to multiple viewers using advanced facilities provided by the H.264 codec. In contrast to traditional broadcast scenarios, in the context of omni- directional video, it is the consumer who de nes the camera view direction and viewport size. This hints to the fact that a single generic stream will generally not su ce as input for the client viewer application or device, but that a customized stream is required for each user. Transcoding such content on the y is widely regarded as a non-scalable solution, as will also be demonstrated in this paper. The proposed solu- tion to the scalability problem consists of viewport selection in the compressed domain, reducing the complexity to the selection of speci c parts in an existing bit stream. Experi- mental results are provided that demonstrate the feasibility of the solution and quantify the performance gain over a transcoding system.
Document URI: http://hdl.handle.net/1942/14476
Category: R2
Type: Research Report
Appears in Collections:Research publications

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