Object-based audio-visual terminal and bitstream structure
AssigneeThe Trustees of Columbia University in the City of New York
InventorsAlexandros Eleftheriadis, Hari Kalva
Life of this patent
Estimating the term…
Abstract
As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, insertion/deletion, grouping, and special effects. In the interest of ease of editing, AV objects and their composition information are transmitted or accessed on separate logical channels (LCs). Objects which have a lifetime in the decoder beyond their initial presentation time are cached for reuse until a selected expiration time.
Claims18
A method for processing object-based data at a receiver to generate an arrangement of the data, comprising:
- (a) receiving in a data bit stream at least one object and composition information for the object;
- (b) locally storing the at least one object;
- (c) processing the received composition information to compose an arrangement using the at least one stored object;
- and
- (d) generating the composed arrangement.
An apparatus for processing object-based data, comprising:
- (a) a receiver circuit configured to receive in a data bit stream at least one object and composition information for the object;
- (b) local storage configured to store the at least one object;
- (c) a composer circuit configured to process the received composition information to compose an arrangement using the at least one object;
- and
- (d) an arrangement generating device configured to generate the composed arrangement.
Dependencies are inferred from the claim text.