Method and system for harvesting a media stream

• US 20050249080A1
• Filed: 05/07/2004
• Published: 11/10/2005
• Est. Priority Date: 05/07/2004
• Status: Abandoned Application

• Current Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: Cooper, Matthew L., Foote, Jonathan T.
• Application Number:
  US10/841,082
• Publication Number:
  US 20050249080A1
• Time in Patent Office: Days
• US Class Current: 369/59.100
• CPC Class Codes: G06F 16/634 Query by example, e.g. query by humming
• CPC Class Codes: G06F 16/635 Filtering based on additional data, e.g. user or group profiles
• CPC Class Codes: G06F 16/639 using playlists
• CPC Class Codes: G06F 16/68 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/683 using metadata automatically derived from the content
• CPC Class Codes: G06F 16/735 Filtering based on additional data, e.g. user or group profiles
• CPC Class Codes: G06F 16/7834 using audio features
• CPC Class Codes: G11B 27/031 Electronic editing of digitised analogue information signals, e.g. audio or video signals
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/22 Means responsive to presence or absence of recorded information signals
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

Systems and methods in accordance with the present invention can be applied to generate a personal media library of media segments from a media stream. A method in accordance with one embodiment can comprise receiving the media stream, identifying one or more novelty points within the media stream and creating a plurality of media segments based on said one or more novelty points. The method can further be applied to compile a playlist or substitute media stream organizing such stream as desired, eliminating redundant media clips and discarding advertisements.

Claims

1. A method for generating a library of media segments from a media stream, comprising:

receiving the media stream;

identifying one or more boundary points within the media stream; and

creating a plurality of media segments based on said one or more boundary points.

2. The method of claim 1, wherein identifying one or more boundary points includes:

defining a novelty threshold; and

comparing the media stream to said novelty threshold;

wherein said one or more boundary points exceeds said novelty threshold.

3. The method of claim 2, wherein comparing the media stream to said novelty threshold includes:

sampling a portion of the media stream as a plurality of windows; and

calculating a plurality of vectors corresponding to said plurality of windows;

generating a matrix using said plurality of vectors;

calculating a product of said matrix and a kernel to determine a novelty score of said portion of the media stream; and

comparing said novelty score of said portion of the media stream to said novelty threshold.

4. The method of claim 1, wherein receiving the media stream includes decoding the media stream.

5. The method of claim 1, wherein the media stream is at least one of an analog stream and a digital stream.

6. The method of claim 1, further comprising:

identifying metadata for at least one of said plurality of media segments; and

associating said metadata with a corresponding media segment from said plurality of media segments.

7. The method of claim 6, wherein identifying metadata includes calculating a reduced representation for said at least one media segment.

8. The method of claim 7, wherein identifying said metadata further includes:

comparing said reduced representation to a metadata database.

9. The method of claim 6, wherein identifying metadata includes calculating a beat spectrum for said at least one media segment.

10. The method of claim 9, wherein identifying said metadata further includes comparing said beat spectrum to a metadata database.

11. The method of claim 6, further comprising:

comparing said at least one media segment having associated metadata with at least one stored media segment from a media segment database.

adding said at least one media segment having associated metadata to the media segment database.

12. The method of claim 11, wherein comparing said at least one media segment includes:

calculating a reduced representation for said at least one media segment; and

comparing said reduced representation of said at least one media segment to a reduced representation of the at least one stored media segment.

13. The method of claim 11, wherein comparing said at least one media segment includes:

calculating a beat spectrum for said at least one media segment; and

comparing said beat spectrum of said at least one media segment to a beat spectrum of a plurality of stored media segments.

14. A method of creating a custom stream from one or more media streams, comprising:

receiving the one or more media streams;

identifying one or more boundary points within the one or more media stream;

creating a plurality of media segments based on said one or more boundary points;

identifying one or more of the plurality of media segments;

selecting at least one of the one or more media segments; and

creating a custom stream including the at least one media segment.

15. The method of claim 14, further including:

emitting the custom stream.

16. The method of claim 14, wherein identifying one or more boundary points includes:

defining a novelty threshold; and

comparing the media stream to said novelty threshold;

wherein said one or more boundary points exceeds said novelty threshold.

17. The method of claim 16, wherein comparing the media stream to said novelty threshold includes:

sampling a portion of the media stream as a plurality of windows; and

calculating a plurality of vectors corresponding to said plurality of windows;

generating a matrix using said plurality of vectors;

calculating a product of said matrix and a kernel to determine a novelty score of said portion of the media stream; and

comparing said novelty score of said portion of the media stream to said novelty threshold.

18. The method of claim 14, wherein selecting at least one of the one or more media segments includes:

measuring a tempo of the one or more media segments; and

choosing at least one media segment based on the tempo.

19. The method of claim 14, wherein selecting at least one of the one or more media segments includes:

measuring one or more characteristics of the one or more media segments; and

choosing at least one media segment based on a comparison of at least one of the one or more characteristics to a criterion.

20. The method of claim 19, wherein the criterion includes at least one of tempo, frequency of occurrence, and media type.

21. The method of claim 14, further comprising:

flagging at least one of the one or more media segments; and

identifying selection criteria from the at least one media segment.

22. The method of claim 21, wherein selecting at least one of the one or more media segments further includes:

comparing the one or more media segments to the selection criteria.

23. The method of claim 22, further comprising:

rejecting the one or more media segments based on the selection criteria.

24. A system for emitting a customized media stream created from one or more media streams, comprising:

a processor to;

segment the one or more media streams into a plurality of media segments;

select at least one of the plurality of media segments; and

create the customized media stream from the at least one media segments; and

a speaker to emit the customized media stream.

25. The system of claim 24, further comprising a receiver to receive the one or more media streams.