Large Number ID Tagging System

• US 20100086235A1
• Filed: 05/05/2008
• Published: 04/08/2010
• Est. Priority Date: 05/03/2007
• Status: Abandoned Application

• Current Assignee: Ivan Curtis, Kevin Loughrey, Michael Evans
• Original Assignee: Ivan Curtis, Kevin Loughrey, Michael Evans
• Inventors: Evans, Michael, Loughrey, Kevin, Curtis, Ivan
• Application Number:
  US12/598,599
• Publication Number:
  US 20100086235A1
• Time in Patent Office: Days
• US Class Current: 382/312
• CPC Class Codes: G06K 19/06037 multi-dimensional coding
• CPC Class Codes: G06K 7/14 using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence

Abstract

A tag system uses dots to store a very large binary number and combined with the Digital Image Processing functions to allow for a reliable recovery of the tag code regardless of the orientation of the tag to the reader and without the need for the tag pattern to incorporate any form of fiducial mark.

Claims

1-10. -10. (canceled)

11. A tag reading apparatus for reading a tag adapted to store a very large binary number, the apparatus comprising:

an image capture element for receiving a first image having a first tag in view;

a processor element adapted to apply one or more digital processing functions to the image;

wherein

the processor element is adapted to orientate and scale the first image to thereby provide a first data matrix indicative of an orientated scaled image;

the processor element is adapted to calculate a second data matrix indicative of an intermediate image of an isolated tag, and to extract therefrom a plurality of array segments each indicative of the binary number; and

the processor element is adapted to calculate, from the plurality of array segments, a code vector indicative of the binary number.

12. The apparatus according to claim 11, wherein the plurality of array segments are each indicative of an identical arrangement of dots on the tag.

13. The apparatus according to claim 11, wherein the tag comprises a pattern of dots to represent a number created by an encryption algorithm, and wherein the tag reader is adapted to decrypted the extracted code vector.

14. The apparatus according to claim 11, wherein the image capture element operates with a high frame rate and having a focus mechanism.

15. The apparatus according to claim 14, wherein the capture element cycles between focusing long and short.

16. The apparatus according to claim 11, wherein the one or more digital processing functions include an error checking and a decryption algorithm for confirming the correct reading and authenticity of the tag.

17. The apparatus according to claim 11, wherein the tag comprises dots arranged in a series of identical arrays for improving tag detection and identification of tag orientation.

18. A method of reading a tag adapted to store a very large binary number, the method comprising the steps of:

receiving a first image having a first tag in view;

orientating and scaling the image such that the tag image substantially align with a respective de-rotated image; and

extracting, from the de-rotated image, a first array;

calculating a second data matrix indicative of an intermediate image of an isolated tag;

extracting, from the second data matrix, a plurality of array segments each indicative of the binary number;

calculating, from the plurality of array segments, a code vector indicative of the binary number.

19. The method according to claim 18, wherein orientating and scaling the image comprises autocorrelation of a horizontal vector and autocorrelation of a vertical vector of an array calculated by rotating the first image.

20. The method according to claim 18, wherein orientating and scaling the image comprises iterating the step to find an optimal orientation and scale according to a cost function.

21. The method according to claim 18, further comprising the step of decoding the plurality of array segments to provide a first confirmed bit vector indicative of the binary number.

22. The method according to claim 21, wherein decoding plurality of array segments includes calculating a parity check to confirm decoding of the bit vector.

23. The method according to claim 21, further comprising the step of decrypting the bit vector thereby calculating and certifying the binary number.

24. The method according to claim 23, wherein decrypting the bit vector calculating a check function to certify the binary number.

25. A tag for storing a very large binary number, the tag comprising, the tag comprising:

a plurality of dots defining an two dimensional array; and

wherein the dots arranged in a series of identical arrays for improving detection and identification of orientation.

26. The tag according to claim 25, wherein the array of dots are printed on a surface by an ink jet printer or a laser.

27. The tag according to claim 25, wherein the array of dots are etched on a surface by an etching device.

28. The tag according to claim 25, wherein the tag further comprises abrasion resistant layer comprising any one or more of a clear polymer, glass or a thin layer of diamond for providing scratch resistance to the tag.

29. The tag according to claim 25, wherein the tag comprises glue containing a material that strongly fluoresces under UV or other forms of electromagnetic radiation.