Patent Document ID: 8671109
Application ID: 13310092

Base Claim:
1. A method to detect video copying, comprising: providing a set of reference data elements derived from a set of reference video frames in a reference video stream; providing a set of query data elements derived from a set of query video frames in a query video stream, each of the query data elements having a corresponding query data element identifier; associating with each of the reference data elements a fingerprint selected from among the query data element identifiers; and determining a similarity measure for the query video stream relative to the reference video stream by: for each snippet of the reference data elements that begins at successively shifted reference data element, identifying a segment associated with each snippet; and identifying one of the snippets as the best matching snippet, based on each snippet's associated segment; wherein the similarity measure for the query video stream relative to the reference video stream comprises at least one characteristic of the best matching snippet's associated segment.

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Claim 22:
22. The method defined in claim 1 , wherein identifying a segment associated with each snippet comprises: aligning the query data elements with the snippet; for each query data element and aligned reference data element, comparing the query data element identifier corresponding to the query data element and the fingerprint associated with the reference data element; identifying, as the segment associated with the snippet, a segment spanning those reference data elements for which the comparing yields a match.