VIDEO FINGERPRINTING

摘要

A query fingerprint of a set of frames of video content captured at a client device may be generated. Multiple patches of the set of frames of video content may be selected and a value calculated for each of the selected multiple patches. The value for each patch may be indicated as a single bit along with an additional 1-bit value to indicate whether the patch value is weak. A database of known reference fingerprints may be queried using the generated query fingerprint. Matches between the query fingerprint and the reference fingerprints may be identified. Weak bits may be given reduced weight in identifying the match of fingerprints. Based on the matches, an identifier for the video content may be returned to the client device. The client device may use the received identifier to access the supplemental content.

主权项

1. A method comprising:
capturing a set of frames of video content at a client device; generating a query fingerprint that includes a first component based on a plurality of patches of a first frame of the set of frames, the first component composed of bits of data, the bits of data representing at least two patches of the plurality of patches; transmitting a request that includes the query fingerprint to a server having access to a database of reference fingerprints associated with frames of known video content, including at least one matching reference fingerprint that matches the query fingerprint, a number of frames in the set of frames of video content on which the query fingerprint is based being fewer than a number of frames used to generate the at least one matching reference fingerprint and receiving, from the server, an identifier corresponding to the video content.