Digital video signature apparatus and methods for use with video program identification systems
AssigneeThe Nielsen Company (US), LLC
InventorKevin Deng
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Abstract
Digital video signature apparatus and methods for use with video program identification systems are disclosed. The disclosed apparatus and methods identify a video program using a sequence of signatures. Each of the signatures includes a set of centroids corresponding to one of a plurality of frames of the video program. The apparatus and methods compare the sequence of signatures to a set of reference sequences of signatures and identify the video program based on the comparison of the sequence of signatures to the set of reference sequences of signatures.
Claims51
A method of generating a video signature, comprising:
- receiving compressed video information;
- selecting a frame from the compressed video information based on a number or proportion of intra-coded macro blocks within the frame;
- calculating image component centroid information based on the selected frame;
- and
- generating the video signature using the image component centroid information.
A system for generating a video signature, comprising:
- a memory;
- and
- a processor coupled to the memory and programmed to:
- receive compressed video information;
- select a frame from the compressed video information based on a number or proportion of intra-coded macro blocks within the frame;
- calculate image component centroid information based on the selected frame;
- and
- generate the video signature using the image component centroid information.
A machine readable medium having instructions stored thereon that, when executed, cause a machine to:
- receive compressed video information;
- select a frame from the compressed video information based on a number or proportion of intra-coded macro blocks within the frame;
- calculate image component centroid information based on the selected frame;
- and
- generating a video signature using the image component centroid information.
Dependencies are inferred from the claim text.