Authoring system for interactive multi-view visual contents

This paper describes issues and consideration on authoring of multi-view visual content based on MPEG-4 systems. The issues include types of 3D visual content; functionalities for user-interaction; 3D scene composition for rendering; and the 3D visual content file format. MPEG-4 includes several extensions compared to MPEG-1 and -2 especially in terms of object-based interactivity. In addition to advanced A/V compression methods (MPEG-4 Part2, Part3 and Part10), MPEG-4 Part1, which is named "Systems", contains additional tools such as binary/textual file format, multiplexing, synchronization scheme, scene description, etc. The use of MPEG-4 can resolve the problem of format diversity while providing high interactivity to users.