US 11,900,711 B1Granted

User identification system using infrared images of palm characteristics

AssigneeAmazon Technologies, Inc.

InventorsDilip Kumar, Manoj Aggarwal, George Leifman, Gerard Guy Medioni, Nikolai Orlov, Natan Peterfreund, Korwin Jon Smith, Dmitri Veikherman, Sora Kim

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Abstract

An identification system includes one or more infrared light sources and a camera that acquires images of a user's palm. For example, at a first time, one or more first images may be acquired by the camera using infrared light with a first polarization that represent external characteristics of the user's palm. At a second time, one or more second images may be acquired using infrared light with a second polarization that represent internal characteristics of the user's palm. These images are processed to determine a first set of feature vectors and a second set of feature vectors. A current signature may be determined using the first set of feature vectors and the second set of feature vectors. In addition, a user may be identified based on a comparison of the current signature and previously stored reference signatures that are associated with candidate user identifiers.

Claims20

Dependent claims

A system comprising:

one or more infrared light sources;
a camera to:
acquire first image data at a first time when infrared light with a first polarization is being produced by at least one of the one or more infrared light sources, and
acquire second image data at a second time when infrared light with a second polarization is being produced by at least one of the one or more infrared light sources;
and
a computing device comprising:
a memory storing computer-executable instructions;
and
a hardware processor to execute the computer-executable instructions to:
generate third image data from the first image data, wherein the third image data depicts one or more external characteristics of a palm of a hand;
determine a first set of feature vectors using at least a portion of the third image data;
generate fourth image data from the second image data, wherein the fourth image data depicts one or more internal characteristics of the palm of the hand;
determine a second set of feature vectors using at least a portion of the fourth image data;
and
determine, using one or more of the first set of feature vectors and one or more of the second set of feature vectors, a current signature.

12 more elements

A system comprising:

a camera;
and
a computing device comprising:
a memory storing computer-executable instructions;
and
a hardware processor to execute the computer-executable instructions to:
access first image data obtained by the camera using infrared light that exhibits a first polarization;
determine a first set of feature vectors using at least a portion of the first image data;
access second image data obtained by the camera using infrared light that exhibits a second polarization;
determine a second set of feature vectors using at least a portion of the second image data;
and
determine one or more current signatures, based on one or more of the first set of feature vectors and one or more of the second set of feature vectors.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/075,926Filed 21 Oct 2020 · continuation
Priority: 21 Jun 2018
Granted: 13 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

G06F 21/32
User authentication: using biometric data, e.g. fingerprints, iris scans or voiceprints
G06F 18/25
Analysing: fusion techniques
G06F 21/83
Protecting input, output or interconnection devices: input devices, e.g. keyboards, mice or controllers thereof
G06N 3/045
Architecture, e.g. interconnection topology: combinations of networks