Method and system for detecting scenes and summarizing video seq

Details Method and system for detecting scenes and summarizing video seq Method and system for detecting scenes and summarizing video seq

1994-12-12

1998-09-08

Johns, Andrew

Image analysis

Image compression or coding

382236, 364514A, 395154, G06K 936, G06K 946, G06K 1500, G06F 1500

Patent

active

058057331

ABSTRACT:
A method and system summarizes scenes in a video sequence by detecting scene changes, and then comparing scenes in a moving window to determine their similarity. Similar scenes are consolidated and represented by a representative frame, a number of which are displayed to a user. Scene changes are detected by comparing average color histograms for each scene, motion compensated pixel differences or motion compensated edge maps, or a combination of these methods. Scenes in the video sequence are selected for summarizing according to their normalized time duration. Of the selected scenes, similar or related scenes are determined by comparing the average color histograms of each pair of scenes in a moving window, using a standard population error measure, such as a Chi-squared test. For each set of related scenes, a representative frame is taken, either as the medial frame from the entire time duration of the related scenes or as the first frame of the medial scene in the set. The representative frames are displayed to the user, wherein set of related scenes are retrived by selecting the representative frame for the set. A movie bar, a visual representation of a rectangular prism, is displayed to show the relative length and positioning of the related scenes.

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patent: 5459517 (1995-10-01), Kunitake et al.
patent: 5521841 (1996-05-01), Arman et al.
patent: 5537528 (1996-07-01), Takahashi et al.

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