| 摘要 |
Systems and methods for describing video content establish video description records which include an object set ( 24 ), an object hierarchy ( 26 ) and entity relation graphs ( 28 ). Video objects can include global objects, segment objects and local objects. The video objects are further defined by a number of features organized in classes, which in turn are further defined by a number of feature descriptors ( 36, 38 , and 40 ). The relationships ( 44 ) between and among the objects in the object set ( 24 ) are defined by the object hierarchy ( 26 ) and entity relation graphs ( 28 ). The video description records provide a standard vehicle for describing the content and context of video information for subsequent access and processing by computer applications such as search engines, filters and archive systems.
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