US 11,688,202 B2Granted

Facial enrollment and recognition system

AssigneeHoneywell International Inc.

InventorsAravind Padmanabhan, Tomas Brodsky, Yunting Lin

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Abstract

A facial recognition system includes a memory for storing a facial image database, wherein the facial image database includes a plurality of entries each corresponding to a different person, and wherein each entry includes a person identifier along with one or more facial images of the person. The facial recognition system further includes a facial recognition module that is operatively coupled to the memory. The facial recognition module is configured to receive a new facial image, and to select one or more facial recognition engines based on one or more facial image parameters of the new facial image, and to use the selected facial recognition engines to compare the new facial image with facial models that are based upon facial images stored in the facial image database in order to identify the person in the new facial image.

Claims16

Dependent claims

A facial recognition system, comprising:

an input;
an output;
a memory for storing a facial image database, wherein the facial image database includes a plurality of entries each corresponding to a different person, and wherein each entry includes a person identifier along with one or more facial images of the person;
a facial recognition module operatively coupled to the memory, the input and the output, the facial recognition module configured to:
receive a new facial image via the input;
ascertain one or more facial image quality parameters from the new facial image;
select two or more facial recognition engines from a larger set of available facial recognition engines based at least in part on one or more of the ascertained facial image quality parameters;
for each of the selected two or more facial recognition engines, compare the new facial image to facial representations that are based upon the facial images stored in the facial image database and identify a person identifier that likely corresponds to the new facial image;
determine whether the person identifier received from each of the selected two or more facial recognition engines identify the same person or not;
determine a person ID of the person based at least in part on whether the person identifier received from each of the selected two or more facial recognition engines identify the same person or not;
and
send the person ID to a control module via the output, wherein the control module is configured to control one or more building control devices based at least in part on the person ID.

9 more elements

A method of recognizing individuals within a building space, the method comprising:

gaining access to a facial image database that includes a plurality of enrolled persons, where the facial image database includes a facial image for each of the plurality of enrolled persons under each of a plurality of different facial conditions;
monitoring one or more video feeds providing images of spaces within the building space, at least some of the images include images of persons within the building space;
processing the one or more video feeds to detect one or more facial images of a person within the building space;
selecting two or more facial recognition engines from a plurality of facial recognition engines to compare the detected one or more facial images with facial models that are based upon the facial images in the facial image database;
receiving from each of the selected two or more facial recognition engines a respective person identifier that corresponds to one of the plurality of enrolled persons included in the facial image database that is identified in the one or more detected facial images;
determining whether the person identifier received from each of the selected two or more facial recognition engines identify the same enrolled person or not;
determining a person ID of an identified one of the plurality of enrolled persons based at least in part on whether the person identifier received from each of the selected two or more facial recognition engines corresponds to the same enrolled person or not;
reporting the determined person ID to a building automation system;
and
controlling one or more building control devices of the building automation system based at least in part on the identified one of the plurality of enrolled persons.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/371,343Filed 9 Jul 2021 · continuation
Priority: 27 Apr 2018
Published: US 2021/0334521 A128 Oct 2021
Granted: 27 Jun 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G06F 16/58
Of still image data: retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
G06V 40/172
Human faces, e.g. facial parts, sketches or expressions: classification, e.g. identification
G06F 16/5838
Using metadata automatically derived from the content: using colour
G06V 20/46
In video content: extracting features or characteristics from the video content, e.g. video fingerprints, representative shots or key frames