Patent ID: 8830331

Claim:
A method for identifying a video signal comprising the steps of: receiving the video signal at a processing device from an input device operably connected to the processing device; executing the following steps on the processing device: a) selecting a portion of the video signal; b) generating at least one histogram corresponding to a frequency of occurrence of a feature in the portion of the video signal; c) assigning a weighting value to each of the features represented in one of the plurality of histograms; d) selecting at least a portion of the features according to the weighting value assigned; e) creating a digital fingerprint for the portion of the video signal from the features selected; f) repeating steps (a)-(e) to generate a plurality of the digital fingerprints for the video signal; g) concatenating the plurality of digital fingerprints to generate a digital signature for the video signal; and h) storing the digital signature in a database.