Devices, methods, and systems for occupancy detection

Patent metadata

Field	Value
Publication number	US-10152628-B2
Application number	US-201715462215-A
Country	US
Kind code	B2
Filing date	Mar 17, 2017
Priority date	Mar 23, 2016
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

Devices, methods, and systems for occupancy detection are described herein. One device includes instructions to receive an image of a portion of a facility captured by an imaging device, the image defined by a field of view, and set a first occupancy detection threshold for a first part of the field of view and a second occupancy detection threshold for a second part of the field of view.

First claim

What is claimed:

1. A non-transitory computer-readable medium having instructions stored thereon executable by a processor to:
receive an image of a portion of a facility captured by an imaging device, the image defined by a field of view; and
set a first occupancy detection threshold for a first part of the field of view and a second occupancy detection threshold for a second part of the field of view, wherein the first occupancy detection threshold and the second occupancy detection threshold have different periods of time between motion detection events required for a determination of occupancy, and wherein the first part of the field of view is an area associated with an occlusion object.

2. The computer-readable medium of claim 1 , wherein the first part is an area of interest within the image.

3. The computer-readable medium of claim 1 , wherein at least one of the first part of the field of view and the second part of the field of view are defined by a user input.

4. The computer-readable medium of claim 1 , wherein the instructions are executable to set at least one of the first occupancy detection threshold and the second occupancy detection threshold responsive to a user input.

5. The computer-readable medium of claim 1 , wherein neither the first part of the field of view and the second part of the field of view are defined by a user input.

6. The computer-readable medium of claim 1 , wherein the first occupancy detection threshold and the second occupancy detection threshold are each motion detection thresholds.

7. The computer-readable medium of claim 1 , wherein the instructions are executable to set a third occupancy detection threshold for a third part of the field of view.

8. The computer-readable medium of claim 2 , wherein the first part of the field of view is defined by a user drawing the first part of the field of view on a touch screen display.

9. A method for occupancy detection, comprising:
receiving an image of a portion of a facility captured by a video camera;
receiving a user input that distinguishes a first part of the image from a second part of the image;
setting a first occupancy detection threshold for a region of an imaging sensor associated with the first part of the image; and
setting a second occupancy detection threshold for a region of the imaging sensor associated with the second part of the image, wherein the first occupancy detection threshold and the second occupancy detection threshold have different periods of time between motion detection events required for a determination of occupancy.

10. The method of claim 9 , wherein the first part of the image corresponds to an area of the portion of the facility below a particular height, wherein the second part of the image corresponds to an area of the portion of the facility above the particular height, and wherein the first occupancy detection threshold is lower than the second occupancy detection threshold.

11. The method of claim 9 , wherein the first part of the image corresponds to an area associated with a floor of the portion of the facility, wherein the second part of the image corresponds to an area of the portion of the facility outside of the area associated with the floor, and wherein the first occupancy detection threshold is lower than the second occupancy detection threshold.

12. The method of claim 9 , wherein the first part of the image corresponds to an area associated with a window of the portion of the facility, wherein the second part of the image corresponds to an area of the portion of the facility outside the area associated with the window, and wherein the first occupancy detection threshold is higher than the second occupancy detection threshold.

13. The method of claim 9 , wherein the first part of the image corresponds to an area associated with a door of the portion of the facility, wherein the second part of the image corresponds to an area outside the area associated with the door, and wherein the first occupancy detection threshold is lower than the second occupancy detection threshold.

14. The method of claim 9 , wherein the first part of the image corresponds to an area associated with an occlusion object of the portion of the facility, wherein the second part of the image corresponds to an area of the portion of the facility outside the area associated with the occlusion object, and wherein the first occupancy detection threshold is lower than the second occupancy detection threshold.

15. A system for occupancy detection, comprising:
an imaging device configured to capture a video image of a portion of a facility and a subsequent video image of the portion of the facility from a same position, wherein the imaging device includes an imaging sensor;
a display device configured to:
display a frame of the video image; and
receive and display an indication of an area of interest of the frame made by a user;

a computing device configured to:
associate a first region of the imaging sensor with the area of interest;
associate a second region of the imaging sensor with an area other than the area of interest;
receive the subsequent video image;
apply a first occupancy detection threshold to the first region during the subsequent video image; and
apply a second occupancy detection threshold to the second region during the subsequent video image, wherein the first occupancy detection threshold and the second occupancy detection threshold have different periods of time between motion detection events required for a determination of occupancy.

16. The system of claim 15 , wherein applying the first occupancy detection threshold to the first region includes ignoring motion detected in the first region.

17. The system of claim 15 , wherein the first occupancy detection threshold includes a lower motion detection threshold than the second occupancy detection threshold.

18. The system of claim 15 , wherein the first occupancy detection threshold includes a longer time delay between motion detection events than the second occupancy detection threshold.

Assignees

• Honeywell Int Inc

Inventors

• Townsend Robert
• Ghanoun Sahand

Classifications

• G06T2207/10016

  Video; Image sequence · CPC title

• G06T7/11

  Region-based segmentation · CPC title

• G06T2207/20104

  Interactive definition of region of interest [ROI] · CPC title

• H04N7/183

  for receiving images from a single remote source · CPC title

• G06T2207/30232

  Surveillance · CPC title