US 12,002,250 B2
Method for processing digital images
Gaël Mahfoudi, Capens (FR); and Mohammed Amine Ouddan, Le Perreux sur Marne (FR)
Assigned to SURYS, Marne la Vallee (FR)
Appl. No. 17/421,486
Filed by SURYS, Marne la Vallee (FR)
PCT Filed Jan. 8, 2020, PCT No. PCT/EP2020/050298
§ 371(c)(1), (2) Date Jul. 8, 2021,
PCT Pub. No. WO2020/144225, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 1900137 (FR), filed on Jan. 8, 2019.
Prior Publication US 2022/0067422 A1, Mar. 3, 2022
Int. Cl. G06K 9/00 (2022.01); G06T 7/13 (2017.01); G06V 10/42 (2022.01); G06V 10/426 (2022.01); G06V 10/46 (2022.01); G06V 40/16 (2022.01)
CPC G06V 10/42 (2022.01) [G06T 7/13 (2017.01); G06V 10/426 (2022.01); G06V 10/462 (2022.01); G06V 40/165 (2022.01); G06V 40/171 (2022.01); G06V 40/172 (2022.01)] 13 Claims
OG exemplary drawing
 
1. A method for processing a candidate digital image, the method comprising:
defining a set of notable points on the candidate digital image;
selecting a set of at least three notable points, comprising:
a notable departure point,
a notable arrival point, and
a third notable point, distinct from the notable departure point and the notable arrival point, and not aligned with the notable departure point and the notable arrival point;
defining a set of at least one route between the notable departure point and the notable arrival point, the route being constrained by all of the selected notable points;
extracting local characteristics of pixels located along the defined at West one route;
recording, in fingerprint form, a signal corresponding to a variation in the local characteristics of each pixel along each of the defined at least one route;
comparing the fingerprint of the candidate digital image to a reference fingerprint; and
generating a signal, the value of which depends on the result of the comparison.