Detecting unauthorized visitors

• US 9,892,311 B2
• Filed: 12/30/2016
• Issued: 02/13/2018
• 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:
  US15/395,526
• Publication Number:
  US 20170193772A1
• Time in Patent Office: 410 Days
• Field of Search: 382100, 382103, 382106-107, 382128-134, 382154, 382155, 382162, 382168, 382173, 382181, 382190, 382199, 382203, 382209, 382214, 382219, 382232, 382254, 382274, 382276, 382286-291, 382305, 382312, 3482221, 348135, 348143, 600476, 600474, 1 1, 128903
• 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, the 3D motion sensors configured to collect a series of images of the person and surrounding area;

a computerized patient monitoring system communicatively coupled to the one or more 3D motion sensors, the computerized monitoring system utilizing information received from the one or more 3D motion sensors to identify the person being monitored utilizing skeletal tracking and blob detection between two or more images in the series of images, and determine whether a visitor enters the view of the one or more 3D motion sensors;

a central communication system communicatively coupled to the computerized patient monitoring system, the central communication system configured to receive an indication from the computerized patient monitoring system if the visitor enters the view of the one or more 3D motion sensors and send an alert to one or more designated recipients if the visitor and the person are in proximity to each other; and

a central video monitoring system, comprising a primary display and an alert display, communicatively coupled to the computerized communication system, the central video monitoring system configured to display at least a portion of the series of images of the visitor, wherein if the computerized patient monitoring system detects an unauthorized visitor, the central communication system sends an alert to the central video monitoring system, and the central video monitoring system moves a display of at least a portion of the series of images of the visitor from the primary display to the alert display.

2. The system of claim 1, wherein the computerized patient monitoring system is further configured to identify a plurality of reference points on the face of the visitor and to compare positions, distances between, sizes, or shapes of the plurality of the reference points to positions, distances between, sizes, or shapes of a plurality of registered reference points on the face of registered visitors to determine if the visitor is a registered visitor, the plurality of registered reference points on the face of registered visitors being stored in a database.

3. The system of claim 1, further comprising determining the visitor and the person are in proximity to each other.

4. A method for detecting unauthorized visitors, the method comprising:

receiving from a 3D motion sensor an image of at least two persons detected in a room of a patient, a method of detecting the at least two persons comprising skeletal tracking and blob detection;

determining, by a computerized patient monitoring system communicatively coupled to the 3D motion sensor, the at least two persons are in proximity to each other;

alerting, by a central communication system communicatively coupled to the computerized patient monitoring system, one or more designated recipients based on the at least two persons being in proximity to each other;

alerting a central video monitoring system of an unauthorized visitor being within the designated proximity to the patient, the central video monitoring system comprising a primary display and an alert display; and

communicating the image of the unauthorized visitor to the central video monitoring system, the image of the unauthorized visitor being moved from a primary display to the alert display.

5. The method of claim 4, further comprising determining one of the at least two persons is a caregiver for the patient.

6. The method of claim 4, further comprising determining one of the at least two persons is an authorized visitor for the patient.

7. The method of claim 4, further comprising determining one of the at least two persons is an unauthorized visitor for the patient.

8. The method of claim 7, further comprising alerting a designated recipient of the unauthorized visitor.

9. The method of claim 4, further comprising suppressing the alert if one of the at least two persons is a caregiver for the patient or an authorized visitor for the patient.

10. The method of claim 4, wherein images for a plurality of people being monitored are displayed on a primary display at a central video monitoring system.

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

receive from a 3D motion sensor an image of a person detected in a room of a patient, the person being in proximity to the patient;

detect a signal from an electronic transmitter corresponding to the person detected in the room of the patient;

determine, utilizing skeletal tracking and blob detection based, if the person is a registered visitor;

alert one or more designated recipients if the person is not a registered visitor;

display series of images for a plurality of people being monitored on a primary display at a central video monitoring system;

alert the central video monitoring system if the person is determined to be an unauthorized visitor; and

upon receiving the alert, cause the central video monitoring system to duplicate the display of the series of images associated with the alert on a central video monitoring system alert display.

12. The computer-readable storage media of claim 11, wherein the instructions further cause the one or more computer processors to register the person if the person is not a registered visitor.