Preserving authentication under item change
First Claim
1. A method, comprising:
- providing a database system having a processor;
storing in the database system a first digital fingerprint based on first digital image data of a first digital image of at least a portion of a physical object, wherein the first digital fingerprint is responsive to a natural structure of the physical object and includes at least a first feature vector, wherein the first feature vector includes a series of numbers responsive to a region of interest of the first digital image data;
acquiring second digital image data of a second digital image of at least a portion of a target physical object wherein the second digital image was captured at a second time subsequent to a first time when the first digital image was captured;
extracting, via a processor, features from the second digital image data, said features associated with a region of interest of the second digital image data;
forming, via the processor, a second digital fingerprint that is responsive to a natural structure of the target physical object and includes at least a second feature vector, wherein the second feature vector includes a series of numbers responsive to the extracted features;
querying the database system processor to seek a matching record based on the second digital fingerprint;
in the database system processor, responsive to the querying, determining an amount of difference between the first and second digital fingerprints, the determination of the amount of difference including comparing the first and second feature vectors;
in the database system processor, in a first case that the amount of difference between the first and second digital fingerprints is within a first predetermined similarity threshold, returning an indication of a match to the first digital fingerprint; and
in the database system processor, in a second case that the amount of difference between the first and second digital fingerprints exceeds the first predetermined similarity threshold and is within a second predetermined similarity threshold, generating an indication of a new match to the physical object, and storing the second digital fingerprint in the database system associated with the first digital fingerprint as an additional identifier of the physical object, and including in the database system an indication of the second time that the second digital image data was captured.
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Abstract
Apparatuses and methods associated with preserving authentication under item change are disclosed herein. In embodiments, acquiring digital image data of an image of at least a portion of a target physical object; extracting features from the image data to form a digital fingerprint; querying the database system to seek a matching record based on the digital fingerprint; based on an amount of difference between the digital fingerprint and a stored digital fingerprint of the database, update the database system to output a new indication of a new match to the physical object for any new samples that are not matchable to the stored digital fingerprint within a first predetermined similarity threshold provided the new samples are matchable to the digital fingerprint within a second predetermined similarity threshold. Other embodiments may be disclosed or claimed.
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Citations
21 Claims
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1. A method, comprising:
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providing a database system having a processor; storing in the database system a first digital fingerprint based on first digital image data of a first digital image of at least a portion of a physical object, wherein the first digital fingerprint is responsive to a natural structure of the physical object and includes at least a first feature vector, wherein the first feature vector includes a series of numbers responsive to a region of interest of the first digital image data; acquiring second digital image data of a second digital image of at least a portion of a target physical object wherein the second digital image was captured at a second time subsequent to a first time when the first digital image was captured; extracting, via a processor, features from the second digital image data, said features associated with a region of interest of the second digital image data; forming, via the processor, a second digital fingerprint that is responsive to a natural structure of the target physical object and includes at least a second feature vector, wherein the second feature vector includes a series of numbers responsive to the extracted features; querying the database system processor to seek a matching record based on the second digital fingerprint; in the database system processor, responsive to the querying, determining an amount of difference between the first and second digital fingerprints, the determination of the amount of difference including comparing the first and second feature vectors; in the database system processor, in a first case that the amount of difference between the first and second digital fingerprints is within a first predetermined similarity threshold, returning an indication of a match to the first digital fingerprint; and in the database system processor, in a second case that the amount of difference between the first and second digital fingerprints exceeds the first predetermined similarity threshold and is within a second predetermined similarity threshold, generating an indication of a new match to the physical object, and storing the second digital fingerprint in the database system associated with the first digital fingerprint as an additional identifier of the physical object, and including in the database system an indication of the second time that the second digital image data was captured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification