CONFIGURATION OF NAVIGATIONAL CONTROLS IN GEOMETRIC ENVIRONMENT

• US 20150145855A1
• Filed: 11/22/2013
• Published: 05/28/2015
• Est. Priority Date: 11/22/2013
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Glover, Raymond S.
• Granted Patent: US 10,380,797 B2
• Time in Patent Office: Days
• US Class Current: 345/419
• 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 3/04815 Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
• CPC Class Codes: G06T 17/10 Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
• CPC Class Codes: G06T 17/30 Polynomial surface description
• CPC Class Codes: G06T 19/003 Navigation within 3D models or images
• CPC Class Codes: G06T 2219/2004 Aligning objects, relative positioning of parts
• CPC Class Codes: G06T 2219/2016 Rotation, translation, scaling
• CPC Class Codes: G06T 7/62 of area, perimeter, diameter or volume

Abstract

According to embodiments of the invention, methods, and a computer system for configuring navigational controls in a geometric environment are disclosed. The method may include obtaining a data set for geometric representation on a display, forming one or more reference surfaces, calculating a fit score and a confidence score using one or more of the reference surfaces, and configuring the navigational system to a control scheme when a computational operation on the fit score and the confidence score is outside of a threshold value. The control scheme may be a geometric control scheme, a planar control scheme, and a roaming control scheme.

Claims

1. A method of controlling a navigational system comprising:

obtaining a data set for geometric representation on a display, the data set having data points;

forming one or more reference surfaces, the one or more reference surfaces formed such that the reference surfaces have one or more of the data points as vertices;

calculating a fit score and a confidence score using one or more of the reference surfaces;

configuring the navigational system to a control scheme when a computational operation on the fit score and the confidence score is outside of a threshold value.

2. The method of controlling a navigational system according to claim 1, wherein the fit score is a geometric fit score, the confidence score is a geometric confidence score, and the control scheme is a geometric control scheme, and wherein the navigational system is configured to a geometric control scheme when a computational operation on the geometric fit score and the geometric confidence score is greater than or equal to a threshold value.

3. The method of controlling a navigational system according to claim 2, wherein the geometric fit score is calculated at least by determining if the one or more reference surfaces are positioned such that one or more reference lines normal to each of the one or more reference surfaces, approach an intersection.

4. The method of controlling a navigational system according to claim 3, wherein the geometric confidence score is calculated at least by the number of the one or more reference lines which approach the intersection.

5. The method of controlling a navigational system according to claim 2, further comprising:

calculating, when the computational operation of the geometric fit score and the geometric confidence score is less than the threshold value, a planar fit score and a planar confidence score using at least one or more of the reference surfaces;

configuring the navigational system to a planar control scheme when a computational operation of the planar fit score and the planar confidence score is greater than or equal to the threshold value.

6. The method of controlling a navigational system according to claim 5, wherein the planar fit score is calculated at least by forming a reference prism encapsulating one or more data points, the reference prism having a reference face and determining the area of the reference face in proportion to other faces of the reference prism.

7. The method of controlling a navigational system according to claim 6, wherein the planar confidence score is calculated at least by the number of the one or more data points which are encapsulated in the reference prism.

8. The method of controlling a navigational system according to claim 5, further comprising:

configuring, if the computational operation of the planar fit score and the planar confidence score is less than the threshold value, the navigational system to a roaming control scheme.

9. The method of controlling a navigational system according to claim 1, further comprising capturing one or more of the data points in view of a synthetic camera, wherein the one or more reference surfaces are formed such that the reference surfaces have the captured data points as vertices.

10. The method of controlling a navigational system according to claim 9, wherein the captured data points reflects the view of the synthetic camera in real time.

11. A computer system comprising:

a processor;

an input device;

an output device; and

memory communicatively coupled to the processor, wherein the memory is encoded with instructions, and wherein the instructions when executed on the processor comprise;

obtaining a data set for geometric representation on the output device, the data set having data points;

forming one or more reference surfaces, the one or more reference surfaces formed such that the reference surfaces have one or more of the data points as vertices;

calculating a fit score and a confidence score using one or more of the reference surfaces;

configuring the input device to a control scheme when a computational operation on the fit score and the confidence score is outside of a threshold value.

12. The computer system according to claim 11, wherein the fit score is a geometric fit score, the confidence score is a geometric confidence score, and the control scheme is a geometric control scheme, and wherein the input device is configured to a geometric control scheme when a computational operation on the geometric fit score and the geometric confidence score is greater than or equal to a threshold value.

13. The computer system according to claim 12, wherein the geometric fit score is calculated at least by determining if the one or more reference surfaces are positioned such that one or more reference lines normal to each of the one or more reference surfaces, approach an intersection.

14. The computer system according to claim 13, wherein the geometric confidence score is calculated at least by the number of the one or more reference lines which approach the intersection.

15. The computer system according to claim 12, wherein the instructions further comprise:

calculating, when the computational operation of the geometric fit score and the geometric confidence score is less than the threshold value, a planar fit score and a planar confidence score using at least one or more of the reference surfaces;

configuring the input device to a planar control scheme when a computational operation of the planar fit score and the planar confidence score is greater than or equal to the threshold value.

16. The computer system according to claim 15, wherein the planar fit score is calculated at least by forming a reference prism encapsulating one or more data points, the reference prism having a reference face and determining the area of the reference face in proportion to other faces of the reference prism.

17. The computer system according to claim 16, wherein the planar confidence score is calculated at least by the number of the one or more data points which are encapsulated in the reference prism.

18. The computer system according to claim 15, wherein the instructions further comprise:

configuring, if the computational operation of the planar fit score and the planar confidence score is less than the threshold value, the input device to a roaming control scheme.

19. The computer system according to claim 11, wherein the instructions further comprise:

capturing one or more of the data points in view of a synthetic camera, wherein the one or more reference surfaces are formed such that the reference surfaces have the captured data points as vertices.

20. The computer system according to claim 19, wherein the captured data points reflects the view of the synthetic camera in real time.