RETRIEVING VIDEO ANNOTATION METADATA USING A P2P NETWORK AND COPYRIGHT FREE INDEXES

摘要

Video programs (media) are analyzed, often using computerized image feature analysis methods. Annotator index descriptors or signatures that are indexes to specific video scenes and items of interest are determined, and these in turn serve as an index to annotator metadata (often third party metadata) associated with these video scenes. The annotator index descriptors and signatures, typically chosen to be free from copyright restrictions, are in turn linked to annotator metadata, and then made available for download on a P2P network. Media viewers can then use processor equipped video devices to select video scenes and areas of interest, determine the corresponding user index, and send this user index over the P2P network to search for index linked annotator metadata. This metadata is then sent back to the user video device over the P2P network. Thus video programs can be enriched with additional content without transmitting any copyrighted video data.