scope:

Free viewpoint television (FTV) is an innovative technology that allows one to view a three-dimensional (3D) world by freely changing the viewpoint. The transmission aspect of FTV is published as Recommendation ITU-T J.901.

[ITU-T J.901] defines the reference system configuration and shows the allocation of depth estimation and the interpolation module in the configuration. Then, [ITU-T J.901] specifies the requirements for the protocols and data format that are needed, in accordance with the configuration.

The most favourable feature of FTV is its ability to offer an audience a selection of viewpoints. However, as a reproducible range of viewpoints can give rise to a trade-off with the amount of data to be transmitted, [ITU-T J.901] demands data scalability as an optional requirement.

This Recommendation specifies the data structure within the scope of [ITU-T J.901], where the data structure enables scalability in the sense of a reproducible view-range and the amount of data. This Recommendation utilizes existing data representation and view generation schemes specified by ITU and other related standardization organizations, as well as future view generation schemes.