INPUT USER INTERFACE DEVICE, PROJECTING DEVICE, COMMAND DECIDING METHOD AND PROGRAM STORAGE MEDIUM STORING COMMAND DECIDING METHOD PROGRAM

• US 20130249790A1
• Filed: 03/18/2013
• Published: 09/26/2013
• Est. Priority Date: 03/21/2012
• Status: Active Grant

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: TAKASU, Akihide
• Granted Patent: US 9,213,411 B2
• Time in Patent Office: Days
• US Class Current: 345/156
• 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 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386

Abstract

An input user interface device includes an image pickup unit which picks up an image including an object image, a shape detection unit which detects a shape of the object image in the image picked up by the image pickup unit, a determination unit which determines whether the shape of the object image detected by the shape detection unit corresponds to a shape associated with a gesture command or a shape associated with a position designation command for designating a position data, and a command deciding unit which decides the gesture command or the position designation command on the basis of the decision by the deciding unit.

Claims

1. An input user interface device comprising:

an image pickup unit which picks up an image including an object image;

a shape detection unit which detects a shape of the object image in the image picked up by the image pickup unit;

a determination unit which determines whether the shape of the object image detected by the shape detection unit corresponds to a shape associated with a gesture command or a shape associated with a position designation command for designating a position; and

a command deciding unit which decides the gesture command or the position designation command on the basis of the determination by the determination unit.

2. The input user interface device according to claim 1, further comprising a gesture detection unit which detects a gesture of the objet image in the image picked up by the image pickup unit, wherein

the command deciding unit decides a gesture command, when the determination unit determines that the shape corresponds to a reference shape associated with the gesture command and the gesture detected by the gesture detection unit corresponds to a reference gesture associated with the gesture command.

3. The input user interface according to claim 2, further comprising a shape storage unit which stores the reference shape associated with the gesture command, wherein

the determination unit determines whether the shape detected by the shape detection unit corresponds to the reference shape associated with the gesture command by comparing the reference shape stored in the shape storage unit and the shape detected by the shape detection unit.

4. The input user interface device according to claim 2, further comprising a gesture storage unit which stores the reference gesture associated with the gesture command, wherein

the command deciding unit determines whether the gesture detected by the gesture detection unit corresponds to the reference gesture associated with the gesture command by comparing the reference gesture stored in the gesture storage unit and the gesture detected by the gesture detection unit.

5. The input user interface device according to claim 1, wherein

the command deciding unit decides a position designation command when the determination unit determines that the shape corresponds to a second reference shape associated with the position designation command.

6. The input user interface device according to claim 5, further comprising a second shape storage unit which stores the second reference shape associated with the position designation command, wherein

the determination unit determines whether the shape detected by the shape detection unit corresponds to the second reference shape associated with the position designation command by comparing the second reference shape stored in the second shape storage unit and the shape detected by the shape detection unit.

7. The input user interface according to claim 5, further comprising a position detection unit which detects a position of the object image in the image picked up by the image pickup unit, wherein

the command deciding unit decides a position designation command for designating the position detected by the position detection unit when the determination unit determines that the shape corresponds to the second reference shape associated with the position designation command.

8. The input user interface device according to claim 5, wherein

the second reference shape is a pointing shape of a hand.

9. A projecting device, comprising:

the input user interface device according to claim 1; and

a projecting device body which receives a video signal from an external device and projects an image data represented by the received video signal, wherein

the gesture command decided by the command deciding unit is a control command for the projecting device body.

10. The projecting device according to claim 9, further comprising a correction parameter calculation unit which detects an outer shape of an image area picked up by the image pickup unit and projected by the projecting device body and calculates a correction parameter on the basis of the outer shape, wherein

the projecting device body comprises a video signal processing unit which executes distortion correction through coordinate conversion of the image area represented by the video signal on the basis of the correction parameter calculated by the correction parameter calculation unit.

11. A method for deciding a command, comprising:

picking up an image including an object image;

detecting a shape of the object image in the image picked up in the picking up;

determining whether the shape detected in the detecting corresponds to a shape associated with a gesture command or a shape associated with a position designation command for designation of a position; and

deciding the gesture command or the position designation command on the basis of the determination.

12. A non-transitory computer readable recording medium storing a program to make a computer execute a procedure, the computer receiving an image input from an image pickup unit which picks up an image including an object image, the procedure comprising:

picking up an image including an object image;

detecting a shape of the object image in the image picked up by the image pickup unit;

determining whether the shape of the object image detected by the shape detection unit corresponds to a shape associated with a gesture command or a shape associated with a position designation command for designating a position; and

deciding the gesture command or the position designation command on the basis of the determination.