Title :
Scheduling space-time dependent packets in multi-view video streaming
Author :
Chakareski, Jacob
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Alabama, Tuscaloosa, AL, USA
fDate :
Sept. 30 2013-Oct. 2 2013
Abstract :
I formulate an optimization framework for scheduling the packet transmissions in streaming multi-view content over bandwidth constrained channels. The optimization allows me to compute the transmission decisions that maximize the expected reconstruction quality of the content at the client, for the given bandwidth resources. Two prospective multi-view content representation formats are considered: MVC and video plus depth. In the case of each, I formulate directed graph models that characterize the interdependencies between the data units comprising the content. For the video plus depth format, I develop a novel space-time error concealment strategy that reconstructs missing content at the client based on received data units from multiple views. I design two techniques for solving the optimization problem of interest. In conjunction, I derive a spatiotemporal model of the reconstruction error for the multi-view content that I employ to reduce the computational requirements of the optimization. I study the performance of my framework via simulation experiments. Significant gains in rate-distortion efficiency are observed over state-of-the-art methods.
Keywords :
graph theory; image reconstruction; image representation; optimisation; scheduling; video streaming; MVC; bandwidth constrained channels; data units; directed graph models; multiview content representation formats; multiview content streaming; multiview video streaming; optimization framework; packet transmissions; rate-distortion efficiency; received data units; reconstruction error spatiotemporal model; space-time dependent packet scheduling; space-time error concealment strategy; video plus depth; video plus depth format; Cameras; Computational modeling; Data models; Optimized production technology; Resource management; Streaming media;
Conference_Titel :
Multimedia Signal Processing (MMSP), 2013 IEEE 15th International Workshop on
Conference_Location :
Pula
DOI :
10.1109/MMSP.2013.6659266