Visual summary for scanning forwards and backwards in video content
First Claim
1. A method for the automatic creation of a visual summary of video content of a video source, comprising the steps of:
- (a) automatic extraction of a plurality of keyframes representing scenes from a video source according to predetermined criteria to produce an initial visual summary;
(b) assigning weights to a particular group of keyframes extracted in step (a) representing a particular scene of the video source in the initial visual summary;
(c) refining the initial visual summary into a modified visual summary by filtering the keyframes having a lower weight assigned in step (b) relative to higher-weighted keyframes from the particular group of keyframes from the particular scene of the video source; and
(d) adjusting a keyframe display rate of the modified visual summary to correspond with a fast forward/rewind speed of the video source so that the keyframes can be displayed during fast forward/rewind of the video source.
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Accused Products
Abstract
A method and system for providing the creation of a visual summary of a video source during fast forward/rewind of the video can be created by using extracting frames either automatically or manually to create an initial visual summary. A series of weights may be assigned to the extracted frames, which are then filtered according to the relative weights to create a modified visual summary. The keyframe display rate is then adjusted according tot he fast forward/rewind speed, which can be either a standard speed or user selected speed, so as to display the keyframes while the video source is being fast forwarded/rewound. The keyframes may be substituted by selected images and audio, so that an advertiser can substitute an image of the product and a brief audio summary while the user is fast forwarding/rewinding past the commercial message.
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Citations
22 Claims
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1. A method for the automatic creation of a visual summary of video content of a video source, comprising the steps of:
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(a) automatic extraction of a plurality of keyframes representing scenes from a video source according to predetermined criteria to produce an initial visual summary;
(b) assigning weights to a particular group of keyframes extracted in step (a) representing a particular scene of the video source in the initial visual summary;
(c) refining the initial visual summary into a modified visual summary by filtering the keyframes having a lower weight assigned in step (b) relative to higher-weighted keyframes from the particular group of keyframes from the particular scene of the video source; and
(d) adjusting a keyframe display rate of the modified visual summary to correspond with a fast forward/rewind speed of the video source so that the keyframes can be displayed during fast forward/rewind of the video source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for creation of a visual summary of video content of a video source comprising the steps of:
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(a) designating a plurality of frames from a video source as keyframes;
(b) adjusting a display rate of the keyframes designated in step (a) according to a fast forward/rewind speed of the video source so that the keyframes are displayed for a predetermined time during fast forward/rewind of the video source. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system for the automatic creation of a visual summary of video content of a video source, comprising:
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means for extraction of a plurality of keyframes representing scenes from a video source according to predetermined criteria to produce an initial visual summary;
means for assigning weights to a particular group of keyframes extracted by the means for extraction representing a particular scene of the video source in the initial visual summary;
means for refining the initial visual summary into a modified visual summary by filtering the keyframes having a lower weight relative to higher-weighted keyframes from the particular group of keyframes from the particular scene of the video source; and
means for adjusting a keyframe display rate of the modified visual summary to correspond with a fast forward/rewind speed of the video source so that the keyframes are displayed during fast forward/rewind. - View Dependent Claims (19, 20, 21, 22)
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Specification