Patent ID: 8565317

Claim:
A scene description generating device including a processor and a memory programmed with a program, the program including: a display presenting a user with a user interface through which a user can make a selection with respect to a scene pertaining to a scene description; an encoding unit configured to (i) receive a scene description, and user interaction data, and insert at least one identifier into the scene description, each identifier indicating at least one portion of the scene description relating to a user interaction and delete portions of the scene description that are unrelated to the user interaction after decoding of the scene description but before transmitting the scene description to a revision unit, wherein, the revision unit is configured to receive the scene description from the encoding unit, and to generate a revised scene description by deleting scene description portions identified by each identifier while saving an effective tree structure of the scene description, before forwarding the revised scene description to a plurality of terminal units.