3D BUILDING MODEL CONSTRUCTION TOOLS

• US 20140320488A1
• Filed: 04/30/2013
• Published: 10/30/2014
• Est. Priority Date: 04/30/2013
• Status: Active Grant

• Current Assignee: Hover Inc. (Tucows Incorporated)
• Original Assignee: Hover Inc. (Tucows Incorporated)
• Inventors: Ege, Christopher David
• Granted Patent: US 9,330,504 B2
• Time in Patent Office: Days
• US Class Current: 345/420
• CPC Class Codes: G06T 17/05 Geographic models
• CPC Class Codes: G06T 19/20 Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• CPC Class Codes: G06T 2210/04 Architectural design, interior design
• CPC Class Codes: G06T 2219/2021 Shape modification

Abstract

A method for correcting 3D building objects is provided. Construction tools available within the visualization tool provide edge squaring and edge snapping of the 3D building objects, correcting incoherent angles and planes resulting from errors formed during the construction of the building model. Specified angular thresholds for perpendicular axis and parallel planes are provided in the construction tools to identify inaccuracies within selected buildings and new buildings are redrawn.

Claims

1. A method of correcting incoherencies in three-dimensional (3D) building objects, comprising:

analyzing the 3D building object for at least one incoherent angle or plane;

correcting the at least one incoherent angle or plane;

iteratively recalculating additional building angle or plane positions to support the corrected at least one incoherent angle or planes; and

redrawing the selected 3D building object according to the recalculated building angles and plane positions.

2. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 1, wherein the 3D building object is a physical building corresponding to an object captured in an image.

3. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 2, wherein the 3D building object is constructed from an oblique image.

4. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 1, wherein the at least one incoherent angle is analyzed by establishing main axis grouping planes as determined by one or more angular thresholds.

5. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 4, wherein at least one of the grouping planes is used to generate a weighted edge plane for each plane edge.

6. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 5, wherein the at least one of the grouping planes is maintained as the sum of the weighted edge planes divided by the weighted length sum.

7. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 4, wherein the one or more angular thresholds are determined based on minimizing building vertex movement.

8. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 1, wherein the at least one incoherent plane is analyzed by determining nonparallel planes.

9. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 1, wherein architectural faç

ades associated with the 3D building object that are within a threshold of being parallel and near the same plane will be identified and snapped to the redrawn 3D building object.

10. A method of correcting incoherencies in three-dimensional (3D) building objects, as per claim 1, wherein the 3D building object selected was selected using a user interface by any of:

entering in an address;

automatically using the location of the user;

by clicking the location on a map; and

touching a location on a map.

11. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object comprising:

analyzing the selected 3D building object for at least one incoherent angle or plane;

correcting the at least one incoherent angle or plane;

iteratively recalculating additional building angle or plane positions to support the corrected at least one incoherent angle or planes; and

redrawing the selected 3D building object according to the recalculated building angles and plane positions.

12. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein the selected 3D building object is a physical building corresponding to an object captured in an image.

13. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein the 3D building object is constructed from an oblique image.

14. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein the at least one incoherent angle is analyzed by establishing main axis grouping planes as determined by one or more angular thresholds.

15. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 14, wherein at least one of the grouping planes is used to generate a weighted edge plane for each plane edge.

16. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 14, wherein the at least one of the grouping planes is maintained as a sum of the weighted edge planes divided by a weighted length sum.

17. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 14, wherein the one or more angular thresholds are determined based on minimal building vertex movement.

18. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein the at least one incoherent plane is analyzed by determining nonparallel planes.

19. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein architectural faç

ades associated with the selected 3D building object that are within a threshold of being parallel and near the same plane will be identified and snapped to the redrawn 3D building object.

20. A system having a set of instructions stored therein which when executed cause a machine to perform a set of operations on a selected 3D building object, as per claim 11, wherein the 3D building object is selected by entering in a user interface an address, automatically using the location of the user, by clicking the location on a map, or touching a location on a map.