TH97471A - Devices for detecting credit card fraud - Google Patents

Abstract

Method of analysis and system structure For testing the quality and counterfeiting of holograms on banknote products, ID cards or credit cards, devices for detecting counterfeiting of credit card holograms. The invention consists of at least two broadband light sources. For producing white light to be projected onto a hologram that needs to be monitored at a specified incidence angle, a digital camera or a light detector. For receiving light reflected from a holographic image that needs to be examined to convert it to an electrical signal (Ipixel) and a control and image signal processing unit that is composed of a neuron network for processing. The electrical signal received from the camera And control at least two such light sources to operate, one at a time. The control and signal processing unit analyzes each electrical signal received by the camera into three primary colors red, green and blue, and then feeds the converted signals into the neural network input. It is used to determine whether the hologram is genuine or fake.

Claims (3)

1. A device for detecting credit card tampering with a hologram on it that contains a light source. For producing light To be projected onto a hologram (3) to be inspected with a specified incidence angle (6a, 6b and 6c). (4a, 4b, 4m, 10) placed in a preset position. For receiving reflected light (7a, 7b, 7c, 11) from the hologram (3) required such inspection to Convert them to electrical signals (Ipixel) and control and image processor (1) units for processing. The electrical signal is received from the optical detector unit. (4a, 4b, 4m, 10) and controls such light sources (2a, 2b to 2n) to operate one at a time. With unique characteristics The control and signal processing unit (1) is composed of a neural network. Optical diffraction analysis was analyzed by using three primary colors of light: red, green and blue, and using the number of three primary colors as measured by holograms as input data to. Neural network To learn and make judgments in Identification of whether a hologram on a credit card (3) is genuine or fake. 2. A credit card counterfeit detector with a hologram on it, in accordance with claim 1, where such wide-band light sources (2a, 2b to 2n) are white light bulbs. (5a, 5b and 5c) 3. A credit card counterfeit detector with a hologram on it, as per claim 1, which is also added. A means for communicating with peripheral devices (9) through communication lines (8) such as serial port, parallel port or wireless communication, and for displaying hologram processing.