INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM

• US 20170140547A1
• Filed: 07/15/2015
• Published: 05/18/2017
• Est. Priority Date: 07/30/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TSURUMI, Shingo
• Granted Patent: US 10,346,992 B2
• Time in Patent Office: Days
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01B 11/26 for measuring angles or tapers; for testing the alignment of axes
• CPC Class Codes: G06F 3/01 Input arrangements or combined input and output arrangements for interaction between user and computer G06F3/16 takes precedence
• 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 3/017 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: 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
• CPC Class Codes: G06F 3/0426 tracking fingers with respect to a virtual keyboard projected or printed on the surface virtual keyboards on touch screens G06F3/04886
• CPC Class Codes: G06T 7/246 using feature-based methods, e.g. the tracking of corners or segments
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT

Abstract

There is provided an information processing apparatus, an information processing method, and a program that are capable of detecting contact with high precision at low cost, the information processing apparatus including a contact determination unit. The contact determination unit determines contact of an operation body with a target object on the basis of a change in a normal line vector on a surface of the target object, the target object being an operation target of the operation body.

Claims

1. An information processing apparatus, comprising

a contact determination unit that determines contact of an operation body with a target object on the basis of a change in a normal line vector on a surface of the target object, the target object being an operation target of the operation body.

2. The information processing apparatus according to claim 1, further comprising

an object recognition processing unit that recognizes the operation body and the target object included in a picked-up image, wherein

the contact determination unit determines contact of the operation body with the target object on the basis of a change in a normal line vector on a surface of the target object around the operation body.

3. The information processing apparatus according to claim 1, wherein

the contact determination unit determines contact of the operation body with the target object depending on an inclination of the normal line vector in a direction of the operation body.

4. The information processing apparatus according to claim 1, wherein

the contact determination unit determines contact of the operation body with the target object depending on disturbance of an inclination of the normal line vector.

5. The information processing apparatus according to claim 1, further comprising

an input control unit that controls an operation input on the basis of a determination result of the contact determination unit.

6. The information processing apparatus according to claim 5, further comprising

an object recognition processing unit that recognizes the operation body and the target object included in a picked-up image, wherein

the input control unit controls an operation input on the basis of a shape of the operation body recognized by the object recognition processing unit and a determination result of the contact determination unit.

7. The information processing apparatus according to claim 5, further comprising

an image output unit that generates an operation target image superimposed on the target object, wherein

the input control unit controls an operation input on the basis of a positional relationship between the operation body and the target object in the operation target image.

8. The information processing apparatus according to claim 1, wherein

the contact determination unit determines that the operation body is in contact with the target object when an inclination of the normal line vector exceeds a threshold value.

9. The information processing apparatus according to claim 8, further comprising

an object recognition processing unit that recognizes the operation body and the target object included in a picked-up image, wherein

the contact determination unit determines the threshold value depending on a kind of the target object.

10. The information processing apparatus according to claim 9, wherein

the contact determination unit further determines the threshold value depending on a position of a surface of the target object.

11. The information processing apparatus according to claim 8, wherein

the contact determination unit calculates a degree of contact of the operation body with the target object depending on a magnitude of an inclination of the normal line vector when an inclination of the normal line vector is larger than the threshold value.

12. The information processing apparatus according to claim 1, further comprising

an object recognition processing unit that recognizes the operation body and the target object included in a picked-up image, wherein

the contact determination unit determines contact of the operation body with the target object on the basis of a change in a color of the picked-up image when the target object is a rigid body, and determines contact of the operation body with the target object on the basis of a change in the normal line vector when the target object is not a rigid body.

13. The information processing apparatus according to claim 1, wherein

the contact determination unit determines contact of the operation body with the target object on the basis of a change in the normal line vector when a distance between the target object and the operation body is equal to or less than a predetermined value.

14. The information processing apparatus according to claim 1, wherein

the contact determination unit detects the normal line vector from a picked-up image picked up by polarization imaging.

15. A program that causes an information processing apparatus to function as

a contact determination unit that determines contact of an operation body with a target object on the basis of a change in a normal line vector on a surface of the target object, the target object being an operation target of the operation body.

16. An information processing method, comprising

determining, by a contact determination unit, contact of an operation body with a target object on the basis of a change in a normal line vector on a surface of the target object, the target object being an operation target of the operation body.