Computer-generated hologram based-genuine product authentication method, computer-generated hologram based-genuine product authentication system, and digital hologram tag generator for a computer-generated hologram based-genuine product authentication system

A computer-generated hologram based-genuine product authentication system, comprising:

• a security tag generation server (100) sequentially generating a unique code, a unique code image, an original digital hologram security tag, and a modified digital hologram security tag for a product subject to genuine product authentication, storing the unique code, the unique code image, the original digital hologram security tag, and the modified digital hologram security tag in association with product information, and outputting physical or electronic printing of the modified digital hologram security tag through wired/wireless communication with a security tag output device (600) provided in an offline environment;
• a genuine product authentication management server (200) restoring a security tag capture image received from the outside sequentially to the original digital hologram security tag and the unique code image, and performing an identity comparison process between the unique code image stored in association with the product information and the restored unique code image to determine a product authenticity, and generating information on the product authenticity to transmit the same to the outside;
• a user mobile terminal (300) possessed by a user to capture the modified digital hologram security tag provided in a product distributed in an offline environment and generate the security tag capture image;
• and
• a genuine product verification application (400) installed in the user mobile terminal (300) to manage transmission of the security tag capture image and reception of the product authenticity information by wireless communication with the genuine product authentication management server (200) and to output the product authenticity information.

A digital hologram tag generator for a computer-generated hologram based-genuine product authentication system, the generator comprising:

• a unique code generation unit (510) provided with a code generation algorithm (111) to generate a unique code for a product that is subject to genuine product authentication;
• a unique code image generation unit (520) provided with a unique code image generation algorithm (112) to generate a unique code image for the unique code;
• an original digital hologram security tag generation unit (530) provided with a hologram security tag generation algorithm (113) to generate an original digital hologram security tag from the unique code image;
• and
• a modified digital hologram security tag generation unit (540) provided with a hologram security tag modification algorithm (114) to convert the original digital hologram security tag into a modified digital hologram security tag,
• wherein the hologram security tag modification algorithm (114) including at least one of:
• a shuffle based modification algorithm (1141) generating the modified digital hologram security tag by randomly shuffling pixels located in a specific row or column in the original digital hologram security tag consisting of multiple pixels;
• a transposition based modification algorithm (1142) generating the modified digital hologram security tag by symmetrically transposing positions of pixels spaced apart from each other by a predetermined distance in the original digital hologram security tag;
• a rotation based modification algorithm (1143) generating the modified digital hologram security tag by rotating pixels of a specific area in the original digital hologram security tag;
• and
• a rolling based modification algorithm (1144) generating the modified digital hologram security tag by rolling pixels in a specific area by a predetermined angle clockwise or counterclockwise in the original digital hologram security tag.