Enhanced detection of gesture

• US 8,737,693 B2
• Filed: 10/29/2013
• Issued: 05/27/2014
• Est. Priority Date: 07/25/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Clarkson, Ian
• Primary Examiner(s): Johns, Andrew W
• Application Number:
  US14/066,499
• Publication Number:
  US 20140055350A1
• Time in Patent Office: 210 Days
• Field of Search: 382/100, 382/103, 382/107, 382/187, 715/863
• US Class Current: 382/107
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• 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

The enhanced detection of a waving engagement gesture, in which a shape is defined within motion data, the motion data is sampled at points that are aligned with the defined shape, and, based on the sampled motion data, positions of a moving object along the defined shape are determined over time. It is determined whether the moving object is performing a gesture based on a pattern exhibited by the determined positions, and an application is controlled if determining that the moving object is performing the gesture.

Claims

1. A non-transitory computer-readable medium encoded with a computer program comprising instructions that, when executed, cause a computer to perform operations comprising:

providing a plurality of user-selectable options, wherein each of the plurality of user-selectable options regards an aspect of how motion data is used for recognition of a gesture;

receiving a user input regarding at least one of the plurality of user-selectable options; and

using the motion data of a moving object to determine whether the moving object performed the gesture, wherein the determination is based on the user input.

2. The computer-readable medium of claim 1, further including instructions for causing the computer to display the motion data as a motion history map that provides an indication of the moving object'"'"'s motion over time.

3. The computer-readable medium of claim 2, further including instructions for causing the computer to display a graph indicating a detected position of the moving object along a portion of the motion history map.

4. The computer-readable medium of claim 1, further including instructions for causing the computer to provide a graphical user interface with controls for providing the user input.

5. The computer-readable medium of claim 4, wherein the controls comprise slider controls.

6. The computer-readable medium of claim 4, wherein the instructions for causing the computer to provide the graphical user interface includes instructions for enabling the interface to receive the user input regarding at least one of:

a persistence value,

a number of detectable motions for the recognition of the gesture,

high and low thresholds for motion data to be interpreted as a detected motion, or

a timing acceptance value.

7. The computer-readable medium of claim 6, further comprising instructions for adjusting a length of time before which the motion data decays, based on user input regarding the persistence value.

8. The computer-readable medium of claim 6, further comprising instructions for adjusting a timing consistency by which each segment in the gesture may be analyzed, based on user input regarding the timing acceptance value.

9. The computer-readable medium of claim 1, wherein the gesture comprises a swiping or waving hand or finger gesture.

10. The computer-readable medium of claim 1, further comprising instructions for causing the computer to:

obtain one or more images of the moving object; and

extract the motion data from the one or more images.

11. The computer-readable medium of claim 1, further comprising instructions for causing the computer to control an application based on a determination that the moving object performed the gesture.

12. A computer-implemented method comprising:

providing a plurality of user-selectable options, wherein each of the plurality of user-selectable options regards an aspect of how motion data is used for recognition of a gesture;

receiving a user input regarding at least one of the plurality of user-selectable options; and

using the motion data of a moving object to determine whether the moving object performed the gesture, wherein the determination is based on the user input.

13. The method of claim 12, further comprising displaying the motion data as a motion history map that provides an indication of the moving object'"'"'s motion over time.

14. The method of claim 13, further comprising displaying a graph indicating a detected position of the moving object along a portion of the motion history map.

15. The method of claim 12, further comprising providing a graphical user interface having controls for providing the user input.

16. The method of claim 15, wherein the controls comprise slider controls.

17. The method of claim 12, wherein the user input comprises information regarding at least one of:

a persistence value,

a number of detectable motions,

high and low thresholds for detected motion, or

a timing acceptance value.

18. The method of claim 12, wherein the gesture comprises a swiping or waving hand or finger gesture.

19. The method of claim 12, further comprising:

obtaining one or more images of the moving object; and

extracting the motion data from the one or more images.

20. The method of claim 12, further comprising controlling an application based on a determination that the moving object performed the gesture.

21. A device comprising

an interface having plurality of user-selectable options, wherein each of the plurality of user-selectable options regards an aspect of how motion data is used for recognition of a gesture;

and

a processor configured to;

receive a user input regarding at least one of the plurality of user-selectable options; and

use the motion data of a moving object to determine whether the moving object performed the gesture, wherein the determination is based on the user input.

22. A system comprising:

means for providing a plurality of user-selectable options, wherein each of the plurality of user-selectable options regards an aspect of how motion data is used for recognition of a gesture;

means for receiving a user input regarding at least one of the plurality of user-selectable options; and

means for using the motion data of a moving object to determine whether the moving object performed the gesture, wherein the determination is based on the user input.