US 2020/0050849 A1Published application

Method of avoiding biometrically identifying a subject within an image

AssigneeFotoNation Limited

InventorsIlariu RADUCAN, Ruxandra VRANCEANU, Razvan CONDOROVICI, Cosmin STAN, Peter CORCORAN

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Abstract

A method of image processing within an image acquisition device. In one embodiment an image including one or more face regions is acquired and one or more iris regions are identified within the one or more face regions. The one or more iris regions are analyzed to identify any iris region containing an iris pattern that poses a risk of biometrically identifying a subject within the image. Responsive to identifying any such iris region, a respective substitute iris region, containing an iris pattern distinct from the identified iris pattern to avoid identifying the subject within the image, is determined and the identified iris region is replaced with the substitute iris region in the original image.

Claims20

Dependent claims

A method of image processing within an image acquisition device comprising:

storing one or more standard iris regions for one or more subjects in storage,
acquiring an image including one or more face regions;
identifying one or more iris regions within said one or more face regions;
analyzing the one or more iris regions to identify any iris region comprising an iris pattern of sufficient quality to pose a risk of biometrically identifying a subject within said image;
responsive to identifying any such iris region, determining a respective substitute iris region for the subject comprising an iris pattern sufficiently distinct from the identified iris pattern to avoid identifying said subject within said image,
wherein said determining comprises:
retrieving a stored standard iris region for the subject from storage;
for each of the standard iris region and the identified iris region:
successively blurring the iris regions, each successive blur increasing the blurring of the iris region;
subtracting each blurred iris region from a corresponding less blurred iris region to produce successively blurred detail images;
subtracting each successively blurred detailed image for said identified iris region from said identified iris region to produce a base iris region image;
and
adding each successively blurred detailed iris region for said standard iris region to said base image to provide said substitute iris region for the original image.

10 more elements

A method of image processing within an image acquisition device comprising:

acquiring an image including one or more face regions;
identifying one or more iris regions within said one or more face regions;
analyzing the one or more iris regions to identify any iris region comprising an iris pattern of sufficient quality to pose a risk of biometrically identifying a subject within said image;
responsive to identifying any such iris region, determining a respective substitute iris region comprising an iris pattern sufficiently distinct from the identified iris pattern to avoid identifying said subject within said image;
and
replacing the identified iris region with the substitute iris region in the original image including identifying an area of eye glint within said identified iris region and incorporating said eye glint in substituting said iris region.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/656,303Filed 17 Oct 2019
Priority: 4 Apr 2014
Published: 13 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G06V 40/193
Eye characteristics, e.g. of the iris: preprocessing; Feature extraction
G06V 40/197
Eye characteristics, e.g. of the iris: matching; Classification
G06F 16/50
Information retrieval; Database structures therefor; File system structures therefor: of still image data
G06V 40/53
Maintenance of biometric data or enrolment thereof: measures to keep reference information secret, e.g. cancellable biometrics

Family

Application61/975,262Us provisional application · filed 4 Apr 2014
Application15/301,937Continuation · filed 4 Oct 2016
Application16/656,303Continuation
US 10,452,910 B2Related patent
US 10,769,435 B2Related patent
US 2017/0186138 A1Published application
US 2020/0050849 A1This patent

From the US filing history. Foreign family members aren’t listed.