OBJECT-BASED AUDIO-VISUAL TERMINAL AND BITSTREAM STRUCTURE
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United States of America Patent
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Mar 9, 2017
app pub date -
Aug 1, 2016
filing date -
Feb 14, 1997
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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.
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