System and method for detecting fraudulent transactions of items having item-identifying indicia
First Claim
1. A method of detecting a fraudulent transaction of an item having an item-identifying indicium, wherein the item-identifying indicium includes at least one of a bar code, an RFID tag, a magnetic stripe, a pattern code, a two-dimensional bar code and a non-visible identification sign, the method comprising:
- processing the indicium to obtain item-identifying information stored in a data base, the item-identifying information being associated in the data base with a stored digital image of a surface area of the item;
capturing a digital image of a predetermined surface area of an item using a digital image acquisition device;
transferring the captured digital image from the digital image acquisition device to a processor;
using the item-identifying information to retrieve the stored digital image of the surface area of the item associated with the item-identifying information;
transferring the stored digital image from the data base to the processor; and
subjecting the captured digital image and the stored digital image in the processor to an orientation invariant digital pattern match algorithm that computes a correlation value between the captured digital image and the stored digital image to determine if the captured digital image corresponds to the stored digital image as a function of a predetermined correlation threshold value.
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Abstract
A method of detecting a fraudulent transaction of an item having an item-identifying indicium processes the indicium to obtain item-identifying information, and captures a digital representation of a surface area of the item. The item-identifying information is used to retrieve a stored digital representation of the surface area of the item. Further, the method compares the captured digital representation with the stored digital representation to determine if the captured digital representation corresponds to the stored digital representation.
68 Citations
17 Claims
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1. A method of detecting a fraudulent transaction of an item having an item-identifying indicium, wherein the item-identifying indicium includes at least one of a bar code, an RFID tag, a magnetic stripe, a pattern code, a two-dimensional bar code and a non-visible identification sign, the method comprising:
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processing the indicium to obtain item-identifying information stored in a data base, the item-identifying information being associated in the data base with a stored digital image of a surface area of the item; capturing a digital image of a predetermined surface area of an item using a digital image acquisition device; transferring the captured digital image from the digital image acquisition device to a processor; using the item-identifying information to retrieve the stored digital image of the surface area of the item associated with the item-identifying information; transferring the stored digital image from the data base to the processor; and subjecting the captured digital image and the stored digital image in the processor to an orientation invariant digital pattern match algorithm that computes a correlation value between the captured digital image and the stored digital image to determine if the captured digital image corresponds to the stored digital image as a function of a predetermined correlation threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for detecting a fraudulent transaction of an item having an item-identifying indicium, wherein the item-identifying indicium includes at least one of a bar code, an RFID tag, a magnetic stripe, a pattern code, a two-dimensional bar code and a non-visible identification sign, the system comprising:
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a memory device containing a data base configured to store item-identifying information associated with a stored digital image of a surface area of the item; a reader configured to process the indicium to obtain item-identifying information stored in the data base; an imaging device configured to capture a digital image of a predetermined surface area of an item; and a processor coupled to the reader, the imaging device and the memory device, wherein the processor is configured to use the item-identifying information to retrieve the stored digital image of the surface area of the item associated with the item-identifying information from the data base of the memory device, and to subject the captured digital image and the stored digital image to an orientation invariant digital pattern match algorithm that computes a correlation value between the captured digital image and the stored digital image to determine if the captured digital image corresponds to the stored digital image as a function of a predetermined correlation threshold value. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification