Title: Evaluation framework for 360-degree visual content compression with user-dependent transmission

Authors: Navid MAHMOUDIAN BIDGOLI, Thomas MAUGEY, Aline ROUMY

Abstract: Immersive visual experience can be obtained by allowing the user to navigate in a 360-degree visual content. These contents are stored in high resolution and need a lot of space on the server to store them. The transmission depends on the user’s request and only the spatial region which is requested by the user is transmitted to avoid wasting network bandwidth. Therefore, storage and transmission rates are both critical.
%The former is important to reduce the space for storage on the server and the latter reduces the bitrate for the available network bandwidth.
Splitting the rates into storage and transmission has not been formally considered in the literature for evaluating 360-degree content compression algorithms. In this paper, we propose a framework to evaluate the coding efficiency of 360-degree content while discriminating between storage and transmission rate and taking into account user dependency. This brings the flexibility to compare different coding methods based on the storage capacity on the server and network bandwidth of users.