US 11,715,309 B2
Method for producing security elements in an image which are not visible to the human eye and cannot be copied, and printed image
Jörg Kaufmann, Chemnitz (DE); Frank Theeg, Chemnitz (DE); and Holger Zellmer, Magdala (DE)
Assigned to authentic.network GmbH, Chemnitz (DE)
Appl. No. 16/973,071
Filed by Industry365 UG (Haftungsbeschränkt), Chemnitz (DE)
PCT Filed Jun. 22, 2019, PCT No. PCT/DE2019/100575
§ 371(c)(1), (2) Date Dec. 8, 2020,
PCT Pub. No. WO2020/001695, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 102018115146.2 (DE), filed on Jun. 24, 2018.
Prior Publication US 2021/0245542 A1, Aug. 12, 2021
Int. Cl. H04N 1/00 (2006.01); G06V 20/80 (2022.01); G06K 15/02 (2006.01); H04L 9/32 (2006.01); H04N 1/32 (2006.01); G06V 20/00 (2022.01); H04L 9/00 (2022.01)
CPC G06V 20/80 (2022.01) [G06K 15/1836 (2013.01); G06K 15/1881 (2013.01); H04L 9/3278 (2013.01); H04N 1/0087 (2013.01); H04N 1/00838 (2013.01); H04N 1/32251 (2013.01); H04N 1/32256 (2013.01); H04N 1/32272 (2013.01); H04N 1/32352 (2013.01); G06T 2201/0051 (2013.01); G06V 20/95 (2022.01); H04L 9/50 (2022.05); H04N 2201/3235 (2013.01); H04N 2201/3281 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for producing security elements in an image which are not visible to the human eye and which cannot be copied,
in particular for checking the authenticity of images,
the image being imaged by means of a halftone,
the halftone consisting of individual image dots arranged adjacent to each other,
comprising the steps that
at least one field having a random geometric shape or freeform is defined in the image/the halftone,
wherein, by means of manipulation of the entire field, an encrypted information that cannot be copied is stored for comparison with at least one database and
a serial number is displayed by means of contours formed in the halftone.