Generating Measures of Video Sequences to Detect Unauthorized Use

• US 20090327334A1
• Filed: 06/30/2008
• Published: 12/31/2009
• Est. Priority Date: 06/30/2008
• Status: Abandoned Application

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Rodriguez, Arturo A., Gits, Peter M.
• Application Number:
  US12/164,485
• Publication Number:
  US 20090327334A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/7837 using objects detected or recognised in the video content
• CPC Class Codes: G06F 16/786 using motion, e.g. object motion or camera motion
• CPC Class Codes: G06F 21/1063 Personalisation
• CPC Class Codes: G06F 21/16 Program or content traceability, e.g. by watermarking
• 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: H04N 21/4788 communicating with other users, e.g. chatting arrangements for providing for computer conferences, e.g. chat rooms, to substation in data switching networks H04L12/1813; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 21/8358 involving watermark protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467

Abstract

A system that generates a first measure for a first version of a video sequence having a finite length, the first measure corresponding to measured transitions of a video object of the first video scene, drops pictures to obtain a second version of the video sequence of finite length, and generates a second measure for the second version, the second measure having a similar value to the first measure, the second measure corresponding to measured transitions of the video object of the first video scene.

Claims

1. A method, comprising:

generating a first measure for a first version of a video sequence having a finite length;

dropping pictures to obtain a second version of the video sequence of finite length; and

generating a second measure for the second version, the second measure having a similar value to the first measure, wherein the temporal span of the first and second versions are substantially equal.

2. The method of claim 1, wherein the similar value comprises a predetermined percentage match between the first and second measures.

3. The method of claim 1, further comprising receiving a video stream, the video stream including the video sequence, the video sequence including plural successive pictures corresponding to a video scene, the video scene comprising a visual object.

4. The method of claim 3, wherein generating the first measure comprises:

deriving information corresponding to one or more measured transitions of the visual object over the plural successive pictures; and

providing the first measure corresponding to the derived information.

5. The method of claim 3, wherein generating the second measure comprises:

deriving information corresponding to one or more measured transitions of the visual object over the plural successive pictures; and

providing the second measure corresponding to the derived information.

6. The method of claim 3, further comprising associating the first and second measures with the video scene.

7. The method of claim 3, further comprising:

associating keys corresponding to the video scene with the first and second measures; and

storing the first and second measures and the keys in a data structure.

8. A method, comprising:

generating a first measure for a first version of a video sequence having a finite length;

dropping pictures to obtain a second version of the video sequence of finite length; and

generating a second measure for the second version, the second measure having a similar value to the first measure, wherein the temporal span of the first and second versions are different.

9. The method of claim 8, wherein the second version starts later in display order than the first version and the first and second versions end at a same picture of the video sequence.

10. The method of claim 8, wherein the second version ends earlier in display order than the first version and the first and second versions start at a same picture of the video sequence.

11. The method of claim 8, wherein the second version comprises a smaller picture resolution than the first version.

12. The method of claim 8, wherein the second version is based on a decoded and re-encoded video sequence associated with the first version.

13. The method of claim 8, wherein generating the first and second measures comprises:

deriving information corresponding to one or more measured transitions of the visual object over the plural successive pictures; and

providing the first and second measures corresponding to the derived information.

14. A system, comprising:

a memory with logic; and

a processor configured to execute the logic to;

generate a first measure for a first version of a video sequence having a finite length, the first measure corresponding to measured transitions of a video object of the first video scene;

drop pictures to obtain a second version of the video sequence of finite length; and

generate a second measure for the second version, the second measure having a similar value to the first measure, the second measure corresponding to measured transitions of the video object of the first video scene.

15. The system of claim 14, wherein the temporal span of the first and second versions are substantially equal.

16. The system of claim 14, wherein the temporal span of the first and second versions are different.

17. The system of claim 14, wherein the second version starts later in display order than the first version and the first and second versions end at a same picture of the video sequence.

18. The system of claim 14, wherein the second version ends earlier in display order than the first version and the first and second versions start at a same picture of the video sequence.

19. The system of claim 14, wherein the second version comprises a smaller picture resolution than the first version.

20. The system of claim 14, wherein the second version is based on a decoded and re-encoded video sequence associated with the first version.