METHOD OF UPDATING A VIDEO SUMMARY BY USER RELEVANCE FEEDBACK

• US 20090077137A1
• Filed: 04/26/2007
• Published: 03/19/2009
• Est. Priority Date: 05/05/2006
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Kouwenberg, Sander Wilhelmus Johannes, Weda, Johannes, Barbieri, Mauro, Campanella, Marco Emanuele
• Application Number:
  US12/299,129
• Publication Number:
  US 20090077137A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/739 in form of a video summary, e.g. the video summary being a video sequence, a composite still image or having synthesized frames

Abstract

Method of updating an initial summary (110) of a content item (100) that comprises a plurality of segments (101a . . . 101l) each having a respective initial importance score. The initial summary (110) comprises a subset of the plurality of segments of the content item (100) that have been selected based on their respective importance scores. The method comprises receiving user feedback (301) for a selected segment of the initial summary (110); determining a degree of influence of each of the plurality of the content characteristics (201) on importance scores based on the received user feedback (301), said degree of influence affecting the derivation of the importance score for a given segment based on the content characteristics (201) corresponding to the selected segment; deriving updated importance scores of at least part of the plurality of segments pertaining to the content item based on the adjusted degrees of influences of the content characteristics (201); and updating the summary by updating the subset of the plurality of segments based on their respective updated importance scores.

Claims

1. Method of updating an initial summary (110) of a content item (100) that comprises a plurality of segments (101a . . . 101l) each having a respective initial importance score, the initial summary (110) comprising a subset of the plurality of segments of the content item (100) that have been selected based on their respective importance scores, characterized by:

receiving user feedback (301) for a selected segment of the initial summary (110);

determining a degree of influence of each of the plurality of the content characteristics (201) on importance scores based on the received user feedback (301), said degree of influence affecting the derivation of the importance score for a given segment based on the content characteristics (201) corresponding to the selected segment;

deriving updated importance scores of at least part of the plurality of segments pertaining to the content item based on the adjusted degrees of influences of the content characteristics (201); and

updating the summary by updating the subset of the plurality of segments based on their respective updated importance scores.

2. The method as claimed in claim 1, wherein the user feedback (301) comprises an indication whether the user likes or dislikes a segment.

3. The method as claimed in claim 1, wherein the segment for which the user feedback is received is selected as a segment at which the summary has been paused when the feedback (301) is being received.

4. The method as claimed in claim 1, wherein the degree of influence is implemented as a weight coefficient.

5. The method as claimed in claim 1, wherein in the updated summary (120) only segments from the segment on which the feedback (301) is provided until the end of the summary are updated.

6. The method as claimed in claim 1, further enabling a user to shorten or extend the summary by adding or removing of at least one segment adjacent to the selected segment.

7. The method as claimed in claim 1, further enabling the user to add a segment to the summary, said segment being selected from the subset of segments, which are not pertaining to the current summary.

8. The method as claimed in claim 1, wherein the size of the summary is preserved.

9. The method as claimed in claim 7, wherein the size of the summary is preserved by automatic adding or removing of segments.

10. The method as claimed in claim 1, wherein the summary is implemented as a play list (900) of segments.

11. A device operable to provide a means to receive user feedback (301) for a selected segment of an initial summary (110), a control means to adjust a degree of influence of each of content characteristics (201) based on the received user feedback (301), a means to derive updated importance scores of at least part of a plurality of segments pertaining to a content item (100) based on said user feedback (301), and a means to update the summary by updating a subset of the plurality of segments based on their respective updated importance scores, said device being operable according to the method claimed in claim 1.

12. A device as claimed in claim 11, being configured to update an initial summary (110) wherein in the updated summary (120) only segments from the segment on which the feedback (301) is provided until the end of the summary are updated.

13. A device as claimed in claim 11, further being operable to enable shortening or extending the summary by adding or removing of at least one segment adjacent to the selected segment.

14. A device as claimed in claim 11, further comprising a means to provide the size of the summary.

15. Software executable on device hardware for implementing a method as claimed in claim 1.