System and method for generation of signatures for multimedia data elements

• US 9,449,001 B2
• Filed: 11/03/2014
• Issued: 09/20/2016
• Est. Priority Date: 10/26/2005
• Status: Active Grant

• Current Assignee: Cortica Ltd.
• Original Assignee: Cortica Ltd.
• Inventors: Raichelgauz, Igal, Odinaev, Karina, Zeevi, Yehoshua Y.
• Primary Examiner(s): Trujillo, James
• Assistant Examiner(s): Morris, John J
• Application Number:
  US14/530,970
• Publication Number:
  US 20150052142A1
• Time in Patent Office: 687 Days
• Field of Search: 707/705, 707/803
• US Class Current: 1/1
• CPC Class Codes: G06F 16/152 using file content signatures, e.g. hash values
• CPC Class Codes: G06F 16/22 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/285 Clustering or classification
• CPC Class Codes: G06F 16/40 of multimedia data, e.g. slideshows comprising image and additional audio data retrieval of still image data G06F16/50; retrieval of audio data G06F16/60; retrieval of video data G06F16/70
• CPC Class Codes: G06F 16/41 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/43 Querying
• CPC Class Codes: G06F 16/48 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: Y10S 707/913 Multimedia
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99948 Application of database or data structure, e.g. distributed, multimedia, or image

Abstract

A method and system for generating a complex signature respective of a multimedia data element (MMDE) are provided. The method includes partitioning the MMDE into a plurality of different minimum size MMDEs; generating, for each of the different minimum MMDEs, at least one signature, wherein generation of each at least one signature is performed by a plurality of computational cores, each computational core having at least one configurable property characterizing the core, and wherein configuration of the at least one configurable property respective of each core results in statistical independence among the plurality of cores; and assembling at least a complex signature for the MMDE comprised of a plurality of the generated signatures.

Claims

1. A method for generating a complex signature respective of a multimedia data element (MMDE), comprising:

partitioning the MMDE into a plurality of different minimum size MMDEs;

generating, for each of the different minimum size MMDEs, at least one signature, wherein generation of each of the at least one signature is performed by a plurality of computational cores, each computational core having at least one configurable property characterizing the core, and wherein configuration of the at least one configurable property respective of each core results in statistical independence among the plurality of cores; and

assembling at least a complex signature for the MMDE comprised of a plurality of the generated signatures.

2. The method of claim 1, wherein partitioning the multimedia data element further comprises:

partitioning each partition of a MMDE into a smaller size MMDE, until no further partitioning can be reached.

3. The method of claim 2, wherein the plurality of minimum size MMDEs of the MMDE are partitioned at different sizes, thereby forming different partition levels.

4. The method of claim 1, wherein the signatures are generated by a signature generator.

5. The method of claim 1, wherein the MMDE is any one of:

an image, graphics, a video stream, a video clip, an audio stream, an audio clip, a video frame, a photograph, images of signals, combinations thereof, and portions thereof.

6. The method of claim 3, wherein the images of signals are images of any of:

medical signals, geophysical signals, subsonic signals, supersonic signals, electromagnetic signals, and infrared signals.

7. The method of claim 1, wherein each of the minimum size MMDEs is associated with signatures respective of at least four angular permutations of the minimum size MMDE.

8. The method of claim 7, wherein the at least four angular permutations comprise rotation of the element by 0 degrees, rotation of the element by 90 degrees, rotation of the element by 180 degrees, and rotation of the element by 270 degrees.

9. The method of claim 1, wherein the plurality of minimum size MMDEs of the MMDE represent all portions of the MMDE.

10. A non-transitory computer readable medium having stored thereon instructions for causing one or more processing units to execute the method according to claim 1.

11. A system for generating a complex signature respective of a multimedia data element (MMDE), comprising:

a processor; and

a memory, the memory containing instructions that, when executed by the processor, configure the system to;

partition the MMDE into a plurality of different minimum size MMDEs;

generate, for each of the different minimum MMDEs, at least one signature, wherein generation of each of the at least one signature is performed by a plurality of computational cores, each computational core having at least one configurable property characterizing the core, and wherein configuration of the at least one configurable property respective of each core results in statistical independence among the plurality of cores; and

assemble at least a complex signature for the MMDE comprised of a plurality of the generated signatures.

12. The system of claim 11, wherein the system is further configured to:

partition each partition of a MMDE into a smaller size MMDE, until no further partitioning can be reached.

13. The system of claim 12, wherein the plurality of minimum size MMDEs of the MMDE are partitioned at different sizes, thereby forming different partition levels.

14. The system of claim 11, wherein the generated signatures are generated by a signature generator.

15. The system of claim 11, wherein the MMDE is any one of:

an image, graphics, a video stream, a video clip, an audio stream, an audio clip, a video frame, a photograph, images of signals, combinations thereof, and portions thereof.

16. The system of claim 13, wherein the images of signals are images of any of:

medical signals, geophysical signals, subsonic signals, supersonic signals, electromagnetic signals, and infrared signals.

17. The system of claim 11, wherein each of the minimum size MMDEs is associated with signatures respective of at least four angular permutations of the minimum size MMDE.

18. The system of claim 17, wherein the at least four angular permutations comprise rotation of the element by 0 degrees, rotation of the element by 90 degrees, rotation of the element by 180 degrees, and rotation of the element by 270 degrees.

19. The system of claim 11, wherein the plurality of minimum size MMDEs of the MMDE represent all portions of the MMDE.