Patent ID: 8576342
Filing Date: 2013-11-05
Classification: G11B,H04N

Abstract:
1. A computerized method of identifying a key frame from a video, comprising: a) providing a reference frame; b) providing a current frame different from the reference frame; c) determining, via a processor, a first difference measure between the reference frame and the current frame; d) determining, via a processor, if the first difference measure exceeds a first threshold; e) if the first threshold is exceeded, identifying, via a processor, the current frame as a key frame candidate, otherwise selecting a new current frame and skipping f) and g); f) determining, via a processor, a second difference measure between the reference frame and the key frame candidate; g) identifying, via a processor, the key frame candidate as a key frame if the second difference measure exceeds a second threshold, otherwise selecting a new current frame; and h) repeating c) through g) until a key frame is identified.