FTV is an innovative technology that allows one to view a distant 3D world by freely changing the viewpoint. FTV will open a new era in the history of television since such a function has not yet been achieved by conventional TV technology. To achieve free navigation functionality@ additional requirements are posed other than the conventional video transmission. This Recommendation specifies requirements for transmission of the FTV video under the structure that are also defined in this Recommendation. This Recommendation only defines a system aspect in order to avoid overlap work in the coding and view generation technologies. NOTE ?C The structure and content of this Recommendation have been organized for ease of use by those familiar with the original source material; as such@ the usual style of ITU-T Recommendations has not been applied.