Gesture recognition simulation system and method

• US 20080013793A1
• Filed: 07/13/2006
• Published: 01/17/2008
• Est. Priority Date: 07/13/2006
• Status: Active Grant

• Current Assignee: Northrop Grumman Systems Corporation (Northrop Grumman Corporation)
• Original Assignee: Northrop Grumman Corporation
• Inventors: Hsu, Shi-Ping, Hillis, William Daniel, Nishihara, H Keith, Siegel, Neil
• Granted Patent: US 7,701,439 B2
• Time in Patent Office: Days
• US Class Current: 382/114
• CPC Class Codes: G03H 1/0005 Adaptation of holography to specific applications holographic optical element G02B5/32; holographic scanner G02B26/106; recognition using holographic mask G06V10/88; holographic memories G11B7/0065, G11C13/042
• CPC Class Codes: G03H 1/2249 Holobject properties
• CPC Class Codes: G03H 2001/0061 in haptic applications when the observer interacts with the holobject
• CPC Class Codes: G03H 2210/30 3D object
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06V 40/28 Recognition of hand or arm movements, e.g. recognition of deaf sign language static hand signs G06V40/113

Abstract

A gesture recognition simulation system and method is provided. In one embodiment, a gesture recognition simulation system includes a three-dimensional display system that displays a three-dimensional image of at least one simulated object having at least one functional component. A gesture recognition interface system is configured to receive an input gesture associated with a sensorless input object from a user. The gesture recognition simulation system further comprises a simulation application controller configured to match a given input gesture with a predefined action associated with the at least one functional component. The simulation application controller could invoke the three dimensional display system to display a simulated action on at least a portion of the at least one simulated object associated an input gesture and a predefined action match.

Claims

1. A gesture recognition simulation system comprising:

a three-dimensional display system that displays a three-dimensional image of at least one simulated object having at least one functional component;

a gesture recognition interface system configured to receive an input gesture associated with a sensorless input object from a user, the input gesture being determined by changes in at least one of a three-dimensional shape and a physical location of the sensorless input object relative to the at least one functional component; and

a simulation application controller configured to match a given input gesture with a predefined action associated with the at least one functional component, and invoke the three dimensional display system to display a simulated action associated with the predefined action on at least a portion of the at least one simulated object associated with the at least one functional component.

2. The system of claim 1, wherein the gesture recognition interface system comprises:

a plurality of light sources positioned to illuminate a background surface; and

at least one camera configured to receive a first plurality of images based on a first reflected light contrast difference between the background surface and the sensorless input object caused by a first of the plurality of light sources and a second plurality of images based on a second reflected light contrast difference between the background surface and the sensorless input object caused by a second of the plurality of light sources, such that the three-dimensional shape and the physical location of the sensorless input object are determined based on a comparison of shape and location of corresponding images of the first plurality of images and the second plurality of images.

3. The system of claim 2, wherein the plurality of light sources are infrared (IR) light sources, such that the at least one camera comprises an IR filter.

4. The system of claim 1, further comprising a gesture library that stores a plurality of predefined gestures, the simulation application controller employs the gesture library to determine if a given input gesture matches a predefined action.

5. The system of claim 1, further comprising an object library, accessible by the simulation application controller, that stores data associated with a plurality of simulated objects including three-dimensional image information, information associated with at least one functional component of the respective simulated object, and at least one predefined action associated with the at least one functional component.

6. The system of claim 5, wherein the object library is further configured to store at least one predefined gesture for a given predefined action.

7. The system of claim 1, wherein the three-dimensional display system is further configured to display a three-dimensional image of at least one simulated tool that is reactive to a user'"'"'s hand, such that the sensorless input object comprises the user'"'"'s hand and the at least one simulated tool.

8. The system of claim 1, wherein the at least one sensorless input object comprises at least one of both hands of a user, at least one hand from multiple users, and at least one tool held by one or more users.

9. The system of claim 1, wherein the three-dimensional display system is a holograph projector, such that the three-dimensional image of the at least one simulated device is a holographic image.

10. The system of claim 1, wherein the input gesture comprises concurrent gestures associated with a plurality of users.

11. The system of claim 1, wherein the simulated action comprises one of removing, moving and assembling at least a portion of the at least one simulated object associated with the at least one functional component.

12. The system of claim 1, further comprising an output system configured to provide an additional output in response to the simulated action, the output being at least one of an audio signal, a video signal, and a control signal.

13. The system of claim 1, wherein the input gesture comprises pointing with a finger to define a one-dimensional ray in three-dimensional space, such that multiple pointed fingers define a plurality of one-dimensional rays in three-dimensional space that further define a geometric shape in three dimensional space.

14. A method of interacting with a simulated device, the method comprising:

generating a three-dimensional image of at least one simulated object having at least one functional component;

illuminating a background surface with a plurality of light sources;

generating a first plurality of images associated with a sensorless input object based on a reflected light contrast between the sensorless input object and the illuminated background surface caused by one of the plurality of light sources;

generating a second plurality of images associated with the sensorless input object based on a reflected light contrast between the sensorless input object and the illuminated background surface caused by another one of the plurality of light sources;

determining changes in at least one of a three-dimensional shape and a physical location of the sensorless input object based on a comparison of corresponding images of the first and second plurality of images;

determining an input gesture associated with the sensorless input object based on the changes in at least one of a three-dimensional shape and a physical location of the sensorless input object relative to the at least one functional component;

determining if the input gesture matches a predefined action associated with the at least one functional component; and

displaying a simulated action associated with a matched predefined action on at least a portion of the at least one simulated object associated with the at least one functional component.

15. The method of claim 14, wherein illuminating the background surface comprises illuminating the background surface with a plurality of infrared (IR) light sources.

16. The method of claim 14, further comprising comparing the determined input gesture with a plurality of predefined gestures stored in a predefined gesture library, each predefined action of the at least one functional component having at least one associated gesture of the plurality of predefined gestures that initiates a simulated action on at least a portion of the at least one simulated object.

17. The method of claim 14, further comprising accessing an object library configured to store data associated with a plurality of simulated objects, the data for each of the plurality of simulated objects including three-dimensional image information, information associated with at least one functional component of the respective simulated object, and at least one predefined action associated the at least one functional component.

18. The method of claim 14, further comprising generating a three-dimensional image of at least one simulated tool, the three-dimensional image of the at least one simulated tool being reactive to a user'"'"'s hand, such that the simulated action is further associated with the at least one simulated tool.

19. The method of claim 14, wherein determining the input gesture associated with the sensorless input object comprises determining an input gesture associated with at least one of both hands of a user, at least one hand from multiple users, and at least one tool held by one or more users.

20. The method of claim 14, wherein generating the three-dimensional image of the at least one simulated object comprises projecting a three-dimensional holographic image of the at least one simulated object.

21. The method of claim 14, wherein determining the input gesture associated with the sensorless input object comprises determining concurrent input gestures associated with a plurality of users.

22. The method of claim 14, further comprising activating at least one additional output in response to the simulated action, the at least one additional output being at least one of an audio signal, a video signal, and a control signal.

23. The method of claim 14, wherein the simulated action comprises one of removing, moving and assembling at least a portion of the at least one simulated object.

24. A gesture recognition simulation system comprising:

means for displaying a three-dimensional image of at least one simulated object having at least one functional component;

means for generating a first plurality of images associated with a sensorless input object based on a reflected light contrast between the sensorless input object and an illuminated background surface caused by a first light source;

means for generating a second plurality of images associated with the sensorless input object based on a reflected light contrast between the sensorless input object and the illuminated background surface caused by a second light source;

means for determining changes in at least one of a three-dimensional shape and a physical location of the sensorless input object based on a comparison of corresponding images of the first and second plurality of images;

means for determining an input gesture associated with the sensorless input object based on the determined changes;

means for matching the input gesture to a predefined action associated with the at least one functional component and a physical location of the input gesture relative to the at least one functional component; and

means for displaying a simulated action on at least a portion of the at least one simulated object, the simulated action being associated with the matching of a predefined action to an associated input gesture.

25. The system of claim 24, further comprising means for storing a plurality of predefined gestures, the means for matching employing the means for storing to match the input gesture to the predefined action.

26. The system of claim 24, further comprising means for storing data associated with a plurality of simulated objects, the data for each of the plurality of simulated objects including three-dimensional image information, information associated with at least one functional component of the respective simulated object, and at least one predefined action associated with each of the at least one functional component.

27. The system of claim 24, wherein the sensorless input object comprises at least one of both hands of a user, at least one hand from multiple users, and at least one tool held by one or more users.