Vision-based method and apparatus for detecting an event requiring assistance or documentation

• US 20030004913A1
• Filed: 07/02/2001
• Published: 01/02/2003
• Est. Priority Date: 07/02/2001
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Gutta, Srinivas, Lyons, Damian M.
• Application Number:
  US09/897,524
• Publication Number:
  US 20030004913A1
• Time in Patent Office: Days
• US Class Current: 706/47
• CPC Class Codes: G08B 13/19602 Image analysis to detect motion of the intruder, e.g. by frame subtraction
• CPC Class Codes: G08B 13/19615 wherein said pattern is defined by the user
• CPC Class Codes: G08B 13/19641 Multiple cameras having overlapping views on a single scene
• CPC Class Codes: G08B 13/19671 Addition of non-video data, i.e. metadata, to video stream
• CPC Class Codes: G08B 21/043 detecting an emergency event, e.g. a fall
• CPC Class Codes: G08B 21/0476 Cameras to detect unsafe condition, e.g. video cameras

Abstract

A method and apparatus are disclosed for monitoring a location using vision-based technologies to recognize predefined assistance-invoking events. One or more image capture devices are focused on a given location. The captured images are processed to identify one or more predefined events and to initiate an appropriate response, such as sending assistance or recording the event for evidentiary purposes. A number of rules define various assistance-invoking events. Each rule contains one or more conditions that must be satisfied and a corresponding action-item that should be performed when the rule is satisfied. At least one of the conditions for each rule identifies a feature that must be detected in an image using vision-based techniques. An event monitoring process is also disclosed that analyzes the captured images to detect one or more assistance-invoking events defined by the event rules.

Claims

1. A method for detecting an assistance-invoking event at a monitored location, comprising:

establishing a rule defining said assistance-invoking event, said rule including at least one condition;

processing at least one image of said monitored location to identify said condition; and

providing assistance if said rule is satisfied.

2. The method of claim 1, further comprising the step of recording said at least one image if said rule is satisfied.

3. The method of claim 1, wherein said assistance-invoking event is an injury at said monitored location.

4. The method of claim 1, wherein said assistance-invoking event is an accident at said monitored location.

5. The method of claim 1, wherein said assistance-invoking event is a patron in need of assistance.

12. The method of claim 1, wherein said event is an injury at said monitored location.

6. A method for detecting an assistance-invoking event, comprising:

obtaining at least one image of a monitored location;

analyzing said image using video content analysis techniques to identify at least one predefined feature in said image associated with said assistance-invoking event; and

providing assistance if said predefined feature is recognized in one of said images.

7. The method of claim 6, further comprising the step of recording said at least one image if said predefined feature is recognized in one of said images.

8. The method of claim 6, wherein said assistance-invoking event is an injury at said monitored location.

9. The method of claim 6, wherein said assistance-invoking event is an accident at said monitored location.

10. The method of claim 6, wherein said assistance-invoking event is a patron in need of assistance.

11. A method for documenting an event that may be involved in litigation, comprising:

obtaining at least one image of a monitored location;

analyzing said image using video content analysis techniques to identify at least one predefined feature in said image associated with said event; and

recording said at least one image if said predefined feature is recognized in one of said images.

13. The method of claim 11, wherein said event is an accident at said monitored location.

15. The system of claim 14, wherein said feature is recorded in a rule defining said assistance-invoking event.

16. The system of claim 14, wherein said processor is further configured to record said at least one image if said predefined feature is recognized in one of said images.

17. The system of claim 14, wherein said assistance-invoking event is an injury at said monitored location.

18. The system of claim 14, wherein said assistance-invoking event is an accident at said monitored location.

19. The system of claim 14, wherein said assistance-invoking event is a patron in need of assistance.

14. A system for detecting an assistance-invoking event, comprising:

a memory that stores computer-readable code; and

a processor operatively coupled to said memory, said processor configured to implement said computer-readable code, said computer-readable code configured to;

obtain at least one image of a monitored location;

analyze said image using video content analysis techniques to identify at least one predefined feature in said image associated with said assistance-invoking event; and

provide assistance if said predefined feature is recognized in one of said images.

20. A system for documenting an event that may be involved in litigation, comprising:

a memory that stores computer-readable code; and

a processor operatively coupled to said memory, said processor configured to implement said computer-readable code, said computer-readable code configured to;

obtain at least one image of a monitored location;

analyze said image using video content analysis techniques to identify at least one predefined feature in said image associated with said event; and

record said at least one image if said predefined feature is recognized in one of said images.

21. The system of claim 20, wherein said feature is recorded in a rule defining said assistance-invoking event.

22. The system of claim 20, wherein said event is an injury at said monitored location.

23. The system of claim 20, wherein said event is an accident at said monitored location.

24. An article of manufacture for detecting an assistance-invoking event, comprising:

a computer readable medium having computer readable code means embodied thereon, said computer readable program code means comprising;

a step to obtain at least one image of a monitored location;

a step to analyze said image using video content analysis techniques to identify at least one predefined feature in said image associated with said assistance-invoking event; and

a step to provide assistance if said predefined feature is recognized in one of said images.

25. An article of manufacture for documenting an event that may be involved in litigation, comprising:

a computer readable medium having computer readable code means embodied thereon, said computer readable program code means comprising;

a step to obtain at least one image of a monitored location;

a step to analyze said image using video content analysis techniques to identify at least one predefined feature in said image associated with said event; and

a step to record said at least one image if said predefined feature is recognized in one of said images.