Patent ID: 11899774
Assignee: INFOTOO INTERNATIONAL LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An authentication apparatus configured for determining whether a captured image is a primary image or a non-primary image of an authentic information bearing device, the authentication apparatus comprising a microprocessor, a display, a data storage device, and an authentication tool which is resident in the data storage device;
wherein the authentic information bearing device comprises a data-embedded image pattern which is encoded with a set of discrete data, wherein each discrete data of the set of discrete data has a characteristic signal strength and correlates with a set of spatially distributed pattern defining elements of the data-embedded image pattern by a domain transformation function, the spatially distributed pattern defining elements being spread in the data-embedded image pattern to form a spread image pattern;
wherein the authentication tool comprises a trained neural network having a neural network structure comprising an input layer, an output layer and a plurality of neural network layers intermediate the input layer and the output layer, and each neural network layer has a set of filters comprising a plurality of learned filters; wherein each learned filter comprises a plurality of filter elements and each filter element has a filter value, and wherein the learned filters and filter values were composed or constituted by computer based-deep-learning using a plurality of training images;
wherein the training images comprises a plurality of primary images of the data-embedded image pattern and a plurality of non-primary images of the data-embedded image pattern of the data-embedded image pattern, and wherein a primary image and a corresponding non-primary image have different characteristic signal strengths; and
wherein the trained neural network was trained to determine whether a captured image is a primary image or a non-primary image with reference to the characteristic signal strengths of the training images.