Patent ID: 7016540
Filing Date: 2006-03-21
Classification: G06F,G06K,G11B,H04N,Y10S

Abstract:
1. A method for summarizing a content of an input video sequence, said method comprising: (a) computing a feature vector for each frame in a set of frames from said input video sequence; (b) applying singular value decomposition to a matrix comprised of said feature vectors and projecting the matrix on a refined feature space representation, wherein positions of said projections on said refined feature space representation represent approximations of visual changes in said set of frames from said input video sequence; (c) clustering said frames of said input video sequence based upon positions of said projections on said refined feature space representation; (d) selecting a frame from each cluster to serve as a keyframe in a summarization of said input video sequence; and (e) using said clustered frames to output a motion video representative of a summary of said input video sequence, wherein said input video sequence summary is composed according to a time-length parameter T