US 12,340,272 B2
Automated fraudulent altering and photocopying detection utilizing steganographic pattern detection
Kenneth E. Irwin, Jr., Dawsonville, GA (US); Joseph Brandimore, Lakeland, FL (US); and Brian Ingram, Murphy, NC (US)
Assigned to IGT Global Solutions Corporation, Providence, RI (US)
Filed by IGT Global Solutions Corporation, Providence, RI (US)
Filed on Aug. 13, 2024, as Appl. No. 18/802,568.
Application 18/802,568 is a continuation of application No. 18/435,331, filed on Feb. 7, 2024, granted, now 12,086,682.
Claims priority of provisional application 63/504,528, filed on May 26, 2023.
Prior Publication US 2024/0403589 A1, Dec. 5, 2024
Int. Cl. G06K 7/14 (2006.01); G06T 5/20 (2006.01); G06T 7/13 (2017.01); G06T 11/60 (2006.01); G06V 10/24 (2022.01); G06V 30/10 (2022.01)
CPC G06K 7/1452 (2013.01) [G06T 5/20 (2013.01); G06T 7/13 (2017.01); G06T 11/60 (2013.01); G06V 10/245 (2022.01); G06V 30/10 (2022.01)] 20 Claims
OG exemplary drawing
 
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.