US7372991B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for summarizing and indexing the contents of an audio-visual presentation
Assignee: Seiko Epson Corp
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Filing: 2003-09-26
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Granted: 2008-05-13
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Expires: 2023-09-26
Abstract
Abstract A method for creating a summary of an audiovisual presentation initiates with segmenting a frame of the audiovisual presentation. Then, a slide region of the segmented frame is identified. Next, a histogram representing lines in the slide region is generated. Next, moving regions associated with successive frames from the histogram are suppressed. A computer readable medium, a system for providing a real time summarization of a meeting and an integrated circuit are also provided.
Inventors
- 👤 William Chen
- 👤 Jau-Yuen Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:44
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/065; H; H04; H04N; H04N21/00; H04N21/80; H04N21/85; H04N21/854; H04N21/8549; G06; G06F; G06F16/00; G06F16/70; G06F16/73; G06F16/738; G06F16/739; G11; G11B; G11B27/00; G11B27/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
77 words
A method for creating a summary of an audiovisual presentation, comprising method operations of: segmenting a frame of the audiovisual presentation; identifying a slide region of the segmented frame; generating a histogram representing lines in the slide region; and suppressing moving regions associated with successive frames from the histogram, the suppressing including, assigning a foreground silhouette a most recent timestamp; and generating a motion mask, wherein edges located within the motion mask are excluded from the histogram.
Claim 2
Independent Claim
77 words
A method for creating a summary of an audiovisual presentation, comprising method operations of: segmenting a frame of the audiovisual presentation; identifying a slide region of the segmented frame; generating a histogram representing lines in the slide region; and suppressing moving regions associated with successive frames from the histogram, the suppressing including, assigning a foreground silhouette a most recent timestamp; and generating a motion mask, wherein edges located within the motion mask are excluded from the histogram.
Claim 3
Dependent Claim
37 words
The method of claim 1 , further comprising: generating a histogram from a stored slide associated with the slide region; and matching the histogram representing lines in the slide region with the histogram from the stored slide.
Claim 4
Dependent Claim
28 words
The method of claim 1 , wherein the method operation of identifying a slide region of the segmented frame includes, determining a shape ratio of the slide region.
Claim 5
Dependent Claim
41 words
The method of claim 1 , wherein the method operation of generating a histogram representing lines in the slide region includes, detecting edges of text and figures of the slide region; and transforming data representing the edges into a parameter space.
Claim 6
Dependent Claim
32 words
The method of claim 1 , wherein the method operation of suppressing moving regions associated with successive frames from the histogram includes, generating the silhouette through differences of luminance channels between frames.
Claim 7
Dependent Claim
33 words
The method of claim 1 , wherein the method operation of segmenting a frame of the audiovisual presentation includes, comparing each pixel value of the frame with neighbor pixel values in causal order.
Claim 8
Dependent Claim
16 words
The method of claim 6 , wherein the neighbor pixel values include five neighbor pixel values.
Claim 9
Dependent Claim
38 words
The method of claim 7 , wherein the five neighbor pixel values include two previous adjacent pixel values from the frame, a corresponding pixel value from a previous frame, and two adjacent pixel values from the previous frame.
Claim 10
Dependent Claim
94 words
A computer readable medium having program instructions for creating a summary of an audiovisual presentation, comprising: program instructions for segmenting a frame of the audiovisual presentation; program instructions for identifying a slide region of the segmented frame; program instructions for generating a histogram representing lines in the slide region; and program instructions for suppressing moving regions associated with successive frames from the histogram the program instructions for suppressing including, assigning a foreground silhouette a most recent timestamp; and generating a motion mask, wherein edges located within the motion mask are excluded from the histogram.
Claim 11
Dependent Claim
94 words
A computer readable medium having program instructions for creating a summary of an audiovisual presentation, comprising: program instructions for segmenting a frame of the audiovisual presentation; program instructions for identifying a slide region of the segmented frame; program instructions for generating a histogram representing lines in the slide region; and program instructions for suppressing moving regions associated with successive frames from the histogram the program instructions for suppressing including, assigning a foreground silhouette a most recent timestamp; and generating a motion mask, wherein edges located within the motion mask are excluded from the histogram.
Claim 12
Dependent Claim
45 words
The computer readable medium of claim 9 , further comprising: program instructions for generating a histogram from a stored slide associated with the slide region; and program instructions for matching the histogram representing lines in the slide region with the histogram from the stored slide.
Claim 13
Dependent Claim
33 words
The computer readable medium of claim 9 , wherein the program instructions for identifying a slide region of the segmented frame includes, program instructions for determining a shape ratio of the slide region.
Claim 14
Dependent Claim
49 words
The computer readable medium of claim 9 , wherein the program instructions for generating a histogram representing lines in the slide region includes, program instructions for detecting edges of text and figures of the slide region; and program instructions for transforming data representing the edges into a parameter space.
Claim 15
Dependent Claim
37 words
The computer readable medium of claim 9 , wherein the program instructions for suppressing moving regions associated with successive frames from the histogram includes, program instructions for generating the silhouette through differences of luminance channels between frames.
Claim 16
Independent Claim
121 words
A method for creating a summary of an audiovisual presentation, comprising method operations of: segmenting a frame of the audiovisual presentation, the segmenting including; comparing each pixel value of the frame with a plurality of neighbor pixel values, the plurality of neighbor pixel values including pixel values from the frame and from a previous frame; identifying a slide region of the segmented frame; generating a histogram representing lines in the slide region; and suppressing moving regions associated with successive frames from the histogram; the suppressing including, capturing a foreground silhouette; copying the foreground silhouette; assigning the copied foreground silhouette a most recent timestamp; and generating a motion mask, wherein the edges located within the motion mask are excluded from the histogram.
Claim 17
Independent Claim
121 words
A method for creating a summary of an audiovisual presentation, comprising method operations of: segmenting a frame of the audiovisual presentation, the segmenting including; comparing each pixel value of the frame with a plurality of neighbor pixel values, the plurality of neighbor pixel values including pixel values from the frame and from a previous frame; identifying a slide region of the segmented frame; generating a histogram representing lines in the slide region; and suppressing moving regions associated with successive frames from the histogram; the suppressing including, capturing a foreground silhouette; copying the foreground silhouette; assigning the copied foreground silhouette a most recent timestamp; and generating a motion mask, wherein the edges located within the motion mask are excluded from the histogram.
Claim 18
Dependent Claim
17 words
The method of claim 14 , wherein the plurality of neighbor pixel values include five pixel values.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2011-05-13 | 2011-11-12 | 2012-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-05-13 | 2015-11-12 | 2016-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-05-13 | 2019-11-12 | 2020-05-13 | $7700.00 | Window Closed / Lapsed |