Method and apparatus for video navigation
OwnerMiroslaw Bober, Stavros Paschalakisinventors
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Abstract
A method of deriving a representation of a video sequence comprises deriving metadata expressing at least one temporal characteristic of a frame or group of frames, and one or both of metadata expressing at least one content-based characteristic of a frame or group of frames and relational metadata expressing relationships between at least one content-based characteristic of a frame or group of frames and at least one other frame or group of frames, and associating said metadata and/or relational metadata with the respective frame or group of frames.
Claims26
A method of deriving a representation of a video sequence comprising a plurality of frames, the method comprising deriving metadata expressing at least one temporal characteristic of a frame or group of frames, and one or both of metadata expressing at least one content-based characteristic of a frame or group of frames and relational metadata expressing relationships between at least one content-based characteristic of a frame or group of frames and at least one other frame or group of frames, and associating said metadata and/or relational metadata with the respective frame or group of frames.
The method of any preceding claim wherein the temporal characteristic represents the location of the frame or group of frames in the video sequence.
The method of any preceding claim wherein the content-based characteristics comprise one or more of visual characteristics, audio characteristics, text, keywords, people, and author.
The method of any preceding claim wherein relational metadata uses similarity measures between metadata.
A method of displaying a video sequence for navigation, using a representation derived using the method of any preceding claim.
The method of any preceding claim for two or more different video sequences, optionally omitting temporal metadata.
Dependencies are inferred from the claim text.