3D GESTURE CONTROL METHOD AND APPARATUS

• US 20120119991A1
• Filed: 07/25/2011
• Published: 05/17/2012
• Est. Priority Date: 11/15/2010
• Status: Abandoned Application

• Current Assignee: Institute For Information Industry
• Original Assignee: Institute For Information Industry
• Inventors: TSAI, Chi-Hung, WU, Yeh-Kuang, LIU, Bo-Fu, CHIU, Chien-Chung, CHANG, Hsiao-Chen
• Application Number:
  US13/189,771
• Publication Number:
  US 20120119991A1
• Time in Patent Office: Days
• US Class Current: 345/158
• 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 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

A 3D gesture control method is provided. The method includes the steps of: obtaining a series of images by a stereo camera; recognizing a control article in the images and acquiring 3D coordinates of the control article; determining the speed of the control article according to the 3D coordinates of the control article; and operating a visible object according to the speed.

Claims

1. A 3D gesture control method, comprising the steps of:

obtaining a series of images by a stereo camera;

recognizing a control article in the images and acquiring 3D coordinates of the control article;

determining the speed of the control article according to the 3D coordinates of the control article; and

operating a visible object according to the speed.

2. The 3D gesture control method as claimed in claim 1, wherein the step of recognizing the control article in the images further comprises:

analyzing the images to acquire at least one foreground object and the 3D coordinates of the at least one foreground object and to determine the speed of the at least one foreground object; and

determining the highest speed one as the control article when a plurality of the foreground objects are acquired.

3. The 3D gesture control method as claimed in claim 1, wherein the step of recognizing the control article in the images further comprises:

analyzing the images to acquire at least one foreground object; and

determining the forefront one as the control article when a plurality of the foreground objects are acquired.

4. The 3D gesture control method as claimed in claim 1, wherein the step of determining the speed of the control article according to the 3D coordinates of the control article further comprises:

calculating the speed of the control article based on the 3D coordinates of the points in the trajectory of the control article and the time that the control article moves from point to point.

5. The 3D gesture control method as claimed in claim 1, further comprising:

determining whether the trajectory of the control article is classified into one of various types; and

operating the visible object in accordance with the type of the trajectory of the control article.

6. The 3D gesture control method as claimed in claim 1, wherein the visible object is an object displayed in a displaying picture.

7. The 3D gesture control method as claimed in claim 1, wherein the visible object is a real object able to be controlled by a human machine interface.

8. A 3D gesture control apparatus, comprising:

a stereo camera for obtaining a series of images, recognizing a control article in the images and acquiring 3D coordinates of the control article; and

an image processing unit, coupled to the stereo camera, comprising;

a movement determining unit for determining the speed of the control article according to the 3D coordinates of the control article; and

a object controlling unit for operating a visible object according to the speed.

9. The 3D gesture control apparatus as claimed in claim 8, wherein the images are analyzed to acquire at least one foreground objects and the 3D coordinates of the at least one foreground objects and to determine the speed of the foreground objects, and the highest speed one is determined as the control article when a plurality of the foreground objects are acquired.

10. The 3D gesture control apparatus as claimed in claim 8, wherein the images are analyzed to acquire at least one foreground object, and the forefront one is determined as the control article when a plurality of the foreground objects are acquired.

11. The 3D gesture control apparatus as claimed in claim 8, wherein the speed of the control article is calculated based on the 3D coordinates of the points in the trajectory of the control article and the time that the control article moves from point to point.

12. The 3D gesture control apparatus as claimed in claim 8, further comprising:

a classifier, coupled to the image processing unit, for determining whether the trajectory of the control article is classified into one of various types, wherein the visible object is operated in accordance with the type of the trajectory of the control article.

13. A 3D gesture control method, comprising the steps of:

obtaining a series of images by a stereo camera;

recognizing a control article in the images and acquiring 3D coordinates of the control article;

determining the moving range of the control article according to the 3D coordinates of the control article; and

operating a visible object according to the moving range.

14. A 3D gesture control apparatus, comprising:

a stereo camera for obtaining successive images, recognizing a control article in the images and acquiring 3D coordinates of the control article; and

an image processing unit, coupled to the stereo camera, comprising;

a movement determining unit for determining the moving range of the control article according to the 3D coordinates of the control article; and

an object controlling unit for operating a visible object according to the moving range.