There is provided a structure of metadata which can express an object of a complicated shape. There are added vcr_shape_num indicating the number of sub-planar areas constituting an object area, vcr_rule_code indicating that an integration system to integrate the sub-planar areas and to determine a final...http://www.google.de/patents/US7461082?utm_source=gb-gplus-sharePatent US7461082 - Data structure of metadata and reproduction method of the same
