Comprehensive multimedia content re-purposing relating to wireless communications employs content constructs that are compact representations of the content information. For video content, the constructs are content operators that represent 2D image regions and/or 3D volumetric regions for objects within the sequence and characterized by various visual attributes, and are extracted from the video sequence by segmentation utilizing video processing techniques. The constructs are employed for intra- and inter-modality transformation to accommodate resource constraints of the mobile device.
CROSS-REFERENCE TO RELATED APPLICATION(S)
This application claims priority as a continuation-in-part of U.S. patent application Ser. No. 10/011,883 entitled DISTRIBUTED PROCESSING, STORAGE AND TRANSMISSION OF MULTIMEDIA INFORMATION filed Dec. 4, 2001. The content of the above-identified application(s) is incorporated herein by reference.
A method and apparatus for reproducing metadata provides a data structure in which metadata whose preferential reproduction is desired can be selected and reproduced. The metadata relevant to a moving image includes a stream data structure including one or more access units each being a data unit which can be independently processed, and each of the access units includes first data to specify an effective period defined with respect to a time axis of the moving image, object area data describing a spatio-temporal region in the moving image, second data including one of or both of data to specify a display method relevant to the spatio-temporal region and data to specify a processing to be performed when the spatio-temporal region is specified, and third data to specify, in a case where one or more access units exist on a same screen in the moving image at a time of reproduction of the metadata, reproduction priority of each of the access units.
