Search and identification of video content

A system comprising:

• a memory having instructions embodied thereon;
• a processor coupled to the memory and configured to execute the instructions to perform operations comprising:
• receiving a search query that includes a group of query fingerprints, each fingerprint of the group of query fingerprints being associated with a frame of video content presented at a client device, the frames of video content associated with the group of query fingerprints being sequential;
• accessing, by a processor of a machine, an index of reference fingerprints, each reference fingerprint of the reference fingerprints corresponding to a sequential frame of known video content, each reference fingerprint of the reference fingerprints having an associated first value calculated from one or more first regions of the corresponding frame of known video content and an associated second value calculated from one or more second regions of the corresponding frame of known video content;
• identifying two or more match candidates based on a comparison of the group of query fingerprints to the first values associated with the reference fingerprints;
• selecting one or more of the identified match candidates based on a comparison of the group of query fingerprints to the second values associated with the identified match candidates;
• and
• identifying the video content presented at the client device based on the selected match candidates.

A non-transitory machine-readable medium having instructions embodied thereon which, when executed by one or more processors of a machine, cause the machine to perform operations comprising:

• receiving a search query that includes a group of query fingerprints, each fingerprint of the group of query fingerprints being associated with a frame of video content presented at a client device, the frames of video content associated with the group of query fingerprints being sequential;
• accessing, by a processor of a machine, an index of reference fingerprints, each reference fingerprint of the reference fingerprints corresponding to a sequential frame of known video content, each reference fingerprint of the reference fingerprints having an associated first value calculated from one or more first regions of the corresponding frame of known video content and an associated second value calculated from one or more second regions of the corresponding frame of known video content;
• identifying two or more match candidates based on a comparison of the group of query fingerprints to the first values associated with the reference fingerprints;
• selecting one or more of the identified match candidates based on a comparison of the group of query fingerprints to the second values associated with the identified match candidates;
• and
• identifying the video content presented at the client device based on the selected match candidates.