|Authors||V. R. Gaddam, M. Riegler, R. Eg, C. Griwodz and P. Halvorsen|
|Title||Tiling in Interactive Panoramic Video: Approaches and Evaluation|
|Publication Type||Journal Article|
|Year of Publication||2016|
|Journal||IEEE Transactions on Multimedia|
Interactive panoramic systems are currently on therise. However, one of the major challenges in such a system isthe overhead involved in transferring a full-quality panoramato the client when only a part of the panorama is used toextract a virtual view. Thus, such a system should maximize theuser experience while simultaneously minimizing the bandwidthrequired. In this paper, we apply tiling to deliver different qualitylevels for different parts of the panorama. Tiling has traditionallybeen applied to the delivery of very high-resolution content toclients. Here, we apply similar ideas in a real-time interactivepanoramic video system. A major challenge lies in the movementof such a virtual view, for which clients’ regions of interestchange dynamically and independently from each other. Weshow that our algorithms, which progressively increase in qualitytowards the point of the view, manage to (i) reduce the bandwidthrequirement and (ii) provide a similar QoE compared to a fullpanorama system.