Automated fraudulent altering and photocopying detection utilizing steganographic pattern detection
The present disclosure relates to systems, methods, and devices for automatically verifying the authenticity and integrity of documents such as but not limited to instant lottery tickets.
1. A steganographic Benday pattern detection electronic validation machine comprising:
a camera positioned to capture a digital image of an instant lottery ticket having a steganographic Benday pattern printed in a background area of the instant lottery ticket;
a digital processor; and
a memory device that stores a plurality of instructions, which when executed by the digital processor, cause the digital processor to:
orient the captured digital image to an X/Y grid,
determine edges of the instant lottery ticket in the captured digital image,
determine one of the edges of the instant lottery ticket in the captured digital image that is smooth,
determine one of the edges of the instant lottery ticket in the captured digital image that is perforated,
align the perforated edge of the instant lottery ticket in the captured digital image to an X-axis of the X/Y grid,
analyze the captured digital image for an absence of an apparent Benday pattern,
create a modified digital image to reveal the steganographic Benday pattern by analyzing the captured digital image for an apparent Benday pattern printed in the background area of the instant lottery ticket in any of a plurality of different colors, and
verify that the captured digital image did not include an apparent Benday pattern and that the modified digital image includes the apparent Benday pattern, thereby validating the authenticity of the instant lottery ticket.
2. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to orient the captured digital image to the X/Y grid by:
optical character recognition scanning of the captured digital image for human-readable text, and
orienting the captured digital image such that the human-readable text is right side up.
3. The steganographic Benday pattern detection electronic validation machine of claim 2 , wherein the optical character recognition scanning of the captured digital image for the presence of human-readable text is configured to identify a configuration of the steganographic Benday pattern.
4. The steganographic Benday pattern detection electronic validation machine of claim 3 , wherein the identified configuration of the steganographic Benday pattern is one of a plurality of different possible steganographic Benday patterns embodied in a signature map.
5. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to orient the captured digital image to the X/Y grid by:
scanning the captured digital image for a machine-readable barcode, and
orienting the captured digital image with respect to the machine-readable barcode such that the modified digital ticket image is right side up.
6. The steganographic Benday pattern detection electronic validation machine of claim 5 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to decode the machine-readable barcode and identify a configuration of the steganographic Benday pattern.
7. The steganographic Benday pattern detection electronic validation machine of claim 6 , wherein the identified configuration of the steganographic Benday pattern is one of a plurality of possible steganographic Benday patterns embodied in a signature map.
8. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the steganographic Benday pattern is a moiré pattern.
9. The steganographic Benday pattern detection electronic validation machine of claim 8 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to process the modified digital ticket image using a moiré pattern overlay.
10. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the camera is a color camera.
11. The steganographic Benday pattern detection electronic validation machine of claim 10 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to detect the steganographic Benday pattern using a color filter.
12. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to detect the steganographic Benday pattern using a line filter.
13. The steganographic Benday pattern detection electronic validation machine of claim 1 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to detect the steganographic Benday pattern using an artificial intelligence neural network.
14. A steganographic pattern detection electronic validation machine comprising:
a camera positioned to capture a digital image of an instant lottery ticket having a void pantograph printed in a background area of the instant lottery ticket;
a digital processor; and
a memory device that stores a plurality of instructions, which when executed by the digital processor, cause the digital processor to:
orient the captured digital image to an X/Y grid,
determine edges of the instant lottery ticket in the captured digital image,
determine one of the edges of the instant lottery ticket in the captured digital image that is smooth,
determine one of the edges of the instant lottery ticket in the captured digital image that is perforated,
align the perforated edge of the instant lottery ticket in the captured digital image to an X-axis of the X/Y grid,
analyze the captured digital image for an absence of an apparent void pantograph,
create a modified digital image to reveal the void pantograph by analyzing the captured digital image for an apparent void pantograph printed in the background area of the instant lottery ticket in any of a plurality of different colors, and
verify that the captured digital image did not include an apparent void pantograph and that the modified digital image includes the apparent void pantograph, thereby validating the authenticity of the instant lottery ticket.
15. The steganographic pattern detection electronic validation machine of claim 14 , wherein the plurality of instructions, when executed by the digital processor, cause the digital processor to process the modified digital ticket image via a skewed digital line scanner process.
16. A steganographic Benday pattern detection electronic verification machine for verifying the authenticity of a document having a steganographic Benday pattern printed in a background area, the steganographic Benday pattern detection electronic validation machine comprising:
a digital camera positioned to capture a digital image of the document;
a digital processor; and
a memory device that stores a plurality of instructions, which when executed by the digital processor, cause the digital processor to:
generate a modified image of the document comprising an X/Y grid;
use the modified image to verify that the Benday pattern is not readily apparent;
create a digital photocopy of the modified image and save a resultant Benday digital image; and
determine an absence of a Benday pattern in the captured digital image of the document and determine an appearance of a Benday pattern in the modified image of the document to verify authenticity of the document.
17. The steganographic Benday pattern detection electronic validation machine of claim 16 , wherein the steganographic Benday pattern is one of a plurality of different possible steganographic Benday patterns.
18. The steganographic Benday pattern detection electronic validation machine of claim 17 , wherein the steganographic Benday pattern is one of a plurality of different possible steganographic Benday patterns embodied in a signature map.
19. The steganographic Benday pattern detection electronic validation machine of claim 16 , wherein the steganographic Benday pattern is printed as a void pantograph.
20. The steganographic Benday pattern detection electronic validation machine of claim 16 , wherein the document is an instant lottery ticket.