US 2021/0233203 A1 · DEPTH-BASED DIGITAL FINGERPRINTING

Abstract

Digital fingerprints include data indicative of interior features or structures of an object. The physical object may be rigid or malleable. The digital fingerprints may also include data indicative of features on an exterior surface of the object. Digital fingerprints may uniquely identify an object with respect to other objects, even with respect to other objects of a same type or class of objects. The technology may be relatively invariant to changes in scale, rotation, affine, homography, perspective, and illumination as between a reference digital fingerprint and a later acquired or generated digital fingerprint. Digital fingerprints may be used to authenticate an object as being a second instance or appearance of a previously digitally fingerprinted object.

Claims28

Dependent claims

A digital fingerprinting method, comprising:

acquiring first image data of at least an interior portion of a first physical object;
extracting a characterizing first digital fingerprint based at least in part on the first image data;
and
inducting the first physical object into a reference database system by storing a record in the reference database system that includes the first digital fingerprint, wherein the digital fingerprint uniquely identifies the first physical object from other physical objects of a same type or class of physical objects as the first physical object based on intrinsic characteristics of the first physical object, including intrinsic characteristics of the interior portion of the first physical object, without relying on any tag, label, or other extrinsic identifier added to the first physical object for identification.

1 more element

A system comprising:

at least one processor;
at least one nontransitory computer-readable medium communicatively coupled to the at least one processor, the at least one nontransitory computer-readable medium which stores processor-executable instructions, which, when executed by the at least one processor cause the at least one processor to:
acquire first image data of at least an interior portion of a first physical object;
extract a characterizing first digital fingerprint based at least in part on the first image data;
and
induct the first physical object into a reference database system by storing a record in the reference database system that includes the first digital fingerprint, wherein the digital fingerprint uniquely identifies the first physical object from other physical objects of a same type or class of physical objects as the first physical object based on intrinsic characteristics of the first physical object, including intrinsic characteristics of the interior portion of the first physical object, without relying on any tag, label, or other extrinsic identifier added to the first physical object for identification.

3 more elements

Dependencies are inferred from the claim text.

Depth-based digital fingerprinting

Life of this patent

Depth-based digital fingerprinting

Life of this patent

Abstract

Claims28