Detecting unauthorized visitors

• US 10,643,061 B2
• Filed: 06/27/2019
• Issued: 05/05/2020
• Est. Priority Date: 12/31/2015
• Status: Active Grant

• Current Assignee: Cerner Innovation, Inc. (Oracle Corporation)
• Original Assignee: Cerner Innovation, Inc. (Oracle Corporation)
• Inventors: Kusens, Michael, Kusens, Neil
• Primary Examiner(s): Azarian, Seyed H
• Application Number:
  US16/454,508
• Publication Number:
  US 20190318149A1
• Time in Patent Office: 313 Days
• Field of Search: 382100, 382103, 382106-107, 382128-133, 382154, 382155, 382162, 382168, 382173, 382181, 382190, 382199, 382203, 382209, 382214, 382219, 382232, 382254, 382274, 382276, 382286-291, 382305, 382312, 1 1, 128903, 3482221, 348135, 348143, 34053912, 600476
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1176 Recognition of faces
• CPC Class Codes: A61B 5/4064 Evaluating the brain A61B5/031, A61B5/369, A61B5/14553 take precedence
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G06F 18/22 Matching criteria, e.g. proximity measures
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G06T 2200/04 involving 3D image data
• CPC Class Codes: G06T 2200/24 involving graphical user interfaces [GUIs]
• CPC Class Codes: G06T 2207/10012 Stereo images
• CPC Class Codes: G06T 2207/10021 Stereoscopic video; Stereoscopic image sequence
• CPC Class Codes: G06T 2207/10024 Color image
• CPC Class Codes: G06T 2207/20221 Image fusion; Image merging
• CPC Class Codes: G06T 2207/30201 Face
• CPC Class Codes: G06T 2207/30232 Surveillance
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/0016 involving temporal comparison
• CPC Class Codes: G06T 7/20 Analysis of motion motion estimation for coding, decoding, compressing or decompressing digital video signals H04N19/43, H04N19/51
• CPC Class Codes: G06T 7/292 : Multi-camera tracking
• CPC Class Codes: G06V 20/52 : Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G06V 20/647 : by matching two-dimensional images to three-dimensional objects
• CPC Class Codes: G06V 40/161 : Detection; Localisation; Normalisation
• CPC Class Codes: G06V 40/172 : Classification, e.g. identification
• CPC Class Codes: G06V 40/20 : Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16
• CPC Class Codes: G08B 13/196 : using television cameras
• CPC Class Codes: G08B 13/19639 : Details of the system layout
• CPC Class Codes: G08B 21/0476 : Cameras to detect unsafe condition, e.g. video cameras
• CPC Class Codes: G08B 21/182 : Level alarms, e.g. alarms responsive to variables exceeding a threshold
• CPC Class Codes: G08B 25/009 : Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: G08B 5/22 : using electric transmission; using electromagnetic transmission
• CPC Class Codes: G16H 10/60 : for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 15/00 : ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 20/10 : relating to drugs or medications, e.g. for ensuring correct administration to patients
• CPC Class Codes: G16H 30/20 : for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 40/20 : for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: G16H 40/67 : for remote operation
• CPC Class Codes: G16H 50/30 : for calculating health indices; for individual health risk assessment
• CPC Class Codes: G16H 80/00 : ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
• CPC Class Codes: H04N 13/204 : using stereoscopic image cameras stereoscopic photography G03B35/00
• CPC Class Codes: H04N 13/207 : using a single 2D image sensor
• CPC Class Codes: H04N 2013/0085 : Motion estimation from stereoscopic image signals
• CPC Class Codes: H04N 23/63 : by using electronic viewfinders
• CPC Class Codes: H04N 7/18 : Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04N 7/181 : for receiving images from a plurality of remote sources
• CPC Class Codes: H04N 7/183 : for receiving images from a single remote source

Abstract

An unauthorized visitor system collects an image of a person detected in a room of a patient. The system identifies reference points on the person'"'"'s face, for example, points along the cheeks, jowls, and/or brow. The system may compare the reference points to reference points of images associated with registered visitors. The system then determines, based on the comparison, if the person is a registered visitor. One or more designated recipients may be alerted if the person is not a registered visitor or if the person breaches a patient identification zone established around a particular patient. The system may also register the person in a database of visitors.

Claims

1. A system for detecting unauthorized visitors, the system comprising:

one or more 3D motion sensors located to provide the one or more 3D motion sensors with a view of a person and surrounding area to be monitored; and

a computerized monitoring system communicatively coupled to the one or more 3D motion sensors, the computerized monitoring system configured to;

receive images of the area to be monitored from the one or more 3D motion sensors;

detect when a visitor enters the view of the one or more 3D motion sensors;

receive a plurality of registered reference points on faces of registered visitors from a remote database;

assign a plurality of reference points on the face of the visitor in one or more images from the one or more 3D motion sensors,

determine whether the visitor is an unauthorized visitor by comparing positions, distances between, sizes, or shapes of the reference points to positions, distances between, sizes, or shapes of the reference points of the plurality of registered reference points on faces of registered visitors, wherein the visitor is determined to be an unauthorized visitor when it is determined that the visitor is not registered;

initiate an alert being sent to one or more designated recipients; and

create a recognition profile for the visitor upon determining the visitor is not registered.

2. The system of claim 1 further comprising a central communication system communicatively coupled to the computerized monitoring system, wherein initiating the alert to one or more designated recipients comprises transmitting an indication that the unauthorized visitor was detected to the central communication system and wherein the central communication system sends the alert to the one or more designated recipients.

3. The system of claim 2, wherein the central communication system is located remotely from the computerized monitoring system.

4. The system of claim 1, wherein the computerized monitoring system is further configured to identify the person being monitored utilizing skeletal tracking or blob detection.

5. The system of claim 1, wherein assigning a plurality of reference points on the face of the visitor comprises automatically assigning a plurality of reference points without user confirmation.

6. The system of claim 1, wherein assigning a plurality of reference points on the face of the visitor comprise automatically assigning initial reference points and assigning one or more alternative reference points upon detection of one or more bandages on the face of the visitor.

7. The system of claim 1 further comprising:

a central video monitoring system configured to display at least a portion of images captured by the one or more 3D motion sensors; and

a central communication system that is integrated with the computerized monitoring system and is communicatively coupled to the central video monitoring system, wherein when it is determined that the visitor is an unauthorized visitor, the central communication system sends an alert to the central video monitoring system.

8. A computerized method for detecting unauthorized visitors, the method implemented by one or more processors and comprising:

receiving, from one or more 3D motion sensors, an image of a visitor within an area to be monitored;

receive a plurality of registered reference points on faces of registered visitors from a remote database;

assigning a plurality of reference points on the face of the visitor in the image from the one or more 3D motion sensors;

determining whether the visitor is an unauthorized visitor by comparing positions, distances between, sizes, or shapes of the reference points to positions, distances between, sizes, or shapes of the reference points of the plurality of registered reference points on faces of registered visitors, wherein determining the visitor is an unauthorized visitor comprises determining the visitor is not registered;

initiating an alert being sent to one or more designated recipients; and

creating a recognition profile for the visitor upon determining the visitor is not registered.

9. The computerized method of claim 8, further comprising establishing a virtual zone around an individual to be monitored within the area to be monitored.

10. The computerized method of claim 9, wherein the alert is initiated only upon determining the unauthorized visitor is within the virtual zone around the individual to be monitored.

11. The computerized method of claim 8, further comprising, upon determining the visitor is unauthorized, determining whether the visitor made one or more corrective actions after the alert is sent to one or more designed recipients.

12. The computerized method of claim 11, wherein the one or more corrective actions comprises moving away from an individual being monitored.

13. Non-transitory computer-readable storage media having embodied thereon instructions that, when executed by one or more computer processors, cause the one or more computer processors to:

receive, from one or more 3D motion sensors, images of a visitor within an area having an individual to be monitored;

assign a plurality of reference points on the face of the visitor in one or more images received from the one or more 3D motion sensors;

receive a plurality of registered reference points on faces of registered visitors from a remote database;

determine whether the visitor is an unauthorized visitor by comparing positions, distances between, sizes, or shapes of the reference points to positions, distances between, sizes, or shapes of the reference points of the plurality of registered reference points on faces of registered visitors, wherein it is determined that the visitor is an unauthorized visitor when it is determined that the visitor is not registered;

initiate an alert being sent to one or more designated recipients; and

create a recognition profile for the visitor upon determining that the visitor is not registered.

14. The computer-readable storage media of claim 13, wherein one of the one or more designated recipients is a central video monitoring system comprising a primary display and an alert display, and wherein the central video monitoring system moves a display of at least a portion of the one or more images of the visitor from the primary display to the alert display.

15. The computer-readable storage media of claim 13, wherein the instructions further cause the one or more computer processors to identify the individual being monitored utilizing skeletal tracking or blob detection.