Method for hierarchical summarization and browsing of digital vi

Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements

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382225, 386 4, 386 52, G06T 100

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active

059950951

ABSTRACT:
A method of hierarchical digital video summarization and browsing includes inputting a digital video signal for a digital video sequence and generating a hierarchical summary based on keyframes of the video sequence. Additional steps may include computing histograms for the digital video sequence; detecting shot boundaries within the digital video sequence; determining the number of keyframes to be allocated within each shot; locating the actual position of each keyframe within each shot; identifying keyframe locations by the largest consecutive difference criteria; pruning keyframes for an shot without meaningful action; extracting keyframes efficiently in the case of compressed video; and browsing the shots using the hierarchical keyframe summary.

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