Patent ID: 11907783
Assignee: KAKAOBANK CORP.
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC B  G

Claim 3:
4. A hologram detection service providing server, the hologram detection service providing server comprising:
a detection unit region setting unit configured to set a plurality of detection unit regions located at different positions in a detection object;
an image receiver configured to receive a first image obtained by capturing the detection object in a flash off state and a second image obtained by capturing the detection object on the basis of a flash intensity in a flash on state;
a hologram detector configured to input the first image to a neural network model to obtain a first detection result value representing whether a hologram is detected and a detection region for each of the plurality of detection unit regions, and input the second image to the neural network model to obtain a second detection result value representing whether a hologram is detected and a detection region for each of the plurality of detection unit regions;
an authenticity determiner configured to compare the detection region of the first detection result value and the second detection result value to determine the authenticity or not of the detection object, and determine that the detection object is normal when the detection region where the hologram is detected is different from each other;
wherein the neural network model is learned by using a plurality of learning images,
wherein each of the plurality of learning images includes a plurality of regions, where the presence of a hologram has been checked, and each of the plurality of regions includes labeling value representing whether a hologram is present.