Content identification using fingerprint matching

摘要

Systems and methods of identifying media content, such as video content, that employ fingerprint matching at the level of video frames. The presently disclosed systems and methods of identifying media content can extract one or more fingerprints from a plurality of video frames included in query video content, and, for each of the plurality of video frames from the query video content, perform frame-level fingerprint matching of the extracted fingerprints against fingerprints extracted from video frames included in a plurality of reference video content. Using the results of such frame-level fingerprint matching, the presently disclosed systems and methods of identifying media content can identify the query content in relation to an overall sequence of video frames from at least one of the plurality of reference content, and/or in relation to respective video frames included in a sequence of video frames from the reference content.

主权项

1. A method of identifying media content, the media content including a plurality of media frames, comprising the steps of:
obtaining query fingerprint data from the plurality of media frames, the query fingerprint data being characteristic of the media content; obtaining, from a reference content database, reference fingerprint data corresponding to the query fingerprint data from a plurality of reference frames, the reference fingerprint data being characteristic of reference content associated with the plurality of reference frames; obtaining, for each of at least some of the plurality of reference frames, a frame confidence value as an exponential function of a distance between the reference frame and a corresponding one of the plurality of media frames, the frame confidence value being indicative of how well the reference frame matches the corresponding one of the plurality of media frames, the at least some of the plurality of reference frames being associated with at least one of a plurality of reference frame sequences; obtaining, for at least one of the plurality of reference frame sequences, a sequence confidence value based at least on the frame confidence value for each of at least some of the plurality of reference frames associated with the reference frame sequence; and identifying the media content in relation to at least one reference content identifier for at least one of the plurality of reference frame sequences, based at least on the sequence confidence value for the reference frame sequence.