SYSTEM AND METHOD FOR 3D MODEL GENERATION

• US 20080112610A1
• Filed: 11/14/2007
• Published: 05/15/2008
• Est. Priority Date: 11/14/2006
• Status: Abandoned Application

• Current Assignee: Utah State University
• Original Assignee: S2, Inc.
• Inventors: Pack, Robert, Buckthal, Dustin, Sheen, Troy, Israelsen, Paul
• Application Number:
  US11/939,663
• Publication Number:
  US 20080112610A1
• Time in Patent Office: Days
• US Class Current: 382/154
• CPC Class Codes: G06T 17/00 Three dimensional [3D] modelling, e.g. data description of 3D objects

Abstract

A camera including a Lidar and an optical camera captures 3D data representing scans of an object. The Lidar and optical camera may synchronously or asynchronously capture 3D data. An image is generated for each scan. The images are aligned and combined to generate a total image. Alignment of images may be based on received spatial information. The total image is processed to generated a 3D model.

Claims

1. A computer-implemented method for generating a 3D model, comprising:

a 3D Camera, comprising a Lidar and an optical camera configured to scan asynchronously, generating 3D data representing multiple scans by the 3D Camera;

generating an image from the 3D data for each of the multiple scans;

receiving spatial encoder information reflecting movement of a scanned object;

aligning images corresponding to 3D data generated by the Lidar and the optical camera based on the spatial encoder information;

combining and correlating the images corresponding to each of the multiple scans to generate a total image;

texturing and cleaning up the total image; and

generating a 3D model based on the total image.

2. The method of claim 1, wherein generating a 3D model includes:

generating a coarse 3D model;

converting the coarse 3D model to a standard intermediate format; and

generating a final 3D model.

3. The method of claim 1, further comprising:

providing a viewer configured to enable a user to view and manipulate the 3D model.

4. The method of claim 3, further comprising:

the viewer generating a viewable still image based on the 3D model.

5. The method of claim 3, further comprising:

the viewer generating a video segment based on the 3D model.

6. The method of claim 3, wherein the viewer further comprises a measure tool configured to provide a distance between two selected points on the 3D model.

7. The method of claim 1, further comprising converting and translating the 3D model into a final format.

8. The method of claim 1, wherein generating a final 3D model based on the coarse 3D model includes reducing polygons and simplifying parametric surfaces.

9. A computer-implemented method for generating a 3D model, comprising:

a 3D Camera, comprising a Lidar and an optical camera configured to scan asynchronously, generating 3D data representing multiple scans by the 3D Camera;

inserting time tag information into the 3D data;

generating an image from the 3D data for each of the multiple scans;

receiving spatial information from a spatial information generator reflecting geographical locations of the 3D camera;

associating time tag information with the spatial information;

spatially aligning the images based on the spatial information and the time tags to generate a total image.

10. The computer-implemented method of claim 9, further comprising:

correlating the total image with the spatial information to provide a geographical reference for the total image.

11. The computer-implemented method of claim 9, further comprising:

generating a coarse 3D model based on the total image; and

generating a final 3D model based on the coarse model;

12. The method of claim 11, further comprising:

providing a viewer configured to enable a user to view and manipulate the final 3D model.

13. A computer-implemented method for generating a 3D model, comprising:

receiving 3D data generated by an image capture device, the 3D data representing multiple scans by the image capture device;

generating an image from the 3D data for each of the multiple scans;

combining and correlating the images corresponding to each of the multiple scans to generate a total image;

texturing and cleaning up the total image;

generating a coarse 3D model based on the total image;

generating a final 3D model based on the coarse model; and

inserting the final 3D model into a database accessible over a computer network; and

modifying an original 3D model stored in the database with the final 3D to create an extended 3D model that is accessible and viewable by users.

14. The method of claim 13, wherein the image capture device comprises a Texel Camera, comprising a Lidar and an optical camera configured to scan synchronously and simultaneously.

15. The method of claim 13, wherein the image capture device comprises a 3D Camera, comprising a Lidar and an optical camera configured to scan asynchronously and wherein the method further comprises:

receiving spatial encoder information reflecting rotational movement of a scanned object; and

aligning images corresponding to 3D data generated by the Lidar and the optical camera based on the spatial encoder information.

16. The method of claim 13, further comprising:

mounting the image capture device on a two-axis motion platform;

the image capture device scanning an interior to generate multiple scans;

receiving spatial encoder information reflecting movement of the image capture device; and

aligning images corresponding to 3D data generated by the image capture device based on the spatial encoder information.

17. The method of claim 13, further comprising converting the coarse 3D model to a standard intermediate format prior to generating a final 3D model.

18. The method of claim 13, further comprising:

providing a viewer configured to enable a user to view and manipulate the final 3D model.

19. The method of claim 18, further comprising:

the viewer generating a viewable still image based on the final 3D model.

20. The method of claim 18, further comprising:

the viewer generating a video segment based on the final 3D model.

21. The method of claim 18, wherein the viewer further comprises a measure tool configured to provide a distance between two selected points on the final 3D model.

22. The method of claim 13, further comprising converting and translating the final 3D model into a final format.

23. The method of claim 13, wherein generating a final 3D model based on the coarse 3D model includes reducing polygons and simplifying parametric surfaces.

24. A computer-implemented method for generating a 3D model, comprising:

mounting an image capture device on a two-axis motion platform;

the image capture device scanning an interior to generate multiple scans;

receiving spatial encoder information reflecting movement of the image capture device;

generating an image from the 3D data for each of the multiple scans;

aligning images corresponding to 3D data generated by the image capture device based on the spatial encoder information;

combining and correlating the images corresponding to each of the multiple scans to generate a total image;

texturing and cleaning up the total image;

generating a coarse 3D model based on the total image; and

generating a final 3D model based on the coarse model.

25. The method of claim 24, further comprising converting the coarse 3D model to a standard intermediate format prior to generating a final 3D model.

26. A computer-implemented method for generating a 3D model, comprising:

receiving 3D data generated by an image capture device, the 3D data representing multiple scans by the image capture device;

generating an image from the 3D data for each of the multiple scans;

combining and correlating the images corresponding to each of the multiple scans to generate a total image;

texturing and cleaning up the total image;

generating a coarse 3D model based on the total image;

generating a final 3D model based on the coarse model; and

providing a viewer configured to enable a user to view and manipulate the final 3D model, the viewer configured to generate a viewable still image based on the final 3D model.

27. The method of claim 26, further comprising:

the viewer generating a video segment based on the final 3D model.

28. The method of claim 26, wherein the viewer further comprises a measure tool configured to provide a distance between two selected points on the final 3D model.

29. A system for generating a 3D model, comprising:

a 3D Camera, comprising a Lidar and an optical camera configured to scan asynchronously, generating 3D data representing multiple scans by the 3D Camera;

a sensor to record spatial encoder information relating to movement of an object to be scanned;

a computer having a processor and a memory to receive the 3D data from the 3D Camera, the memory having a data processor module to perform the method of;

generating an image from the 3D data for each of the multiple scans;

receiving spatial encoder information from the sensor;

aligning images corresponding to 3D data generated by the Lidar and the optical camera based on the spatial encoder information;

combining and correlating the images corresponding to each of the multiple scans to generate a total image;

texturing and cleaning up the total image;

generating a coarse 3D model based on the total image; and

generating a final 3D model based on the coarse model.

30. A method for generating a 3D model, comprising:

a 3D Camera, comprising a Lidar and an optical camera configured to scan synchronously, generating 3D data representing multiple scans by the 3D Camera;

generating an image from the 3D data for each of the multiple scans;

receiving spatial information from a spatial information generator reflecting geographical locations of the 3D camera;

spatially aligning the images based on the spatial information to generate a total image; and

generating a 3D model based on the total image.

31. The method of claim 30, further comprising:

correlating the total image with the spatial information to provide a geographical reference for the 3D model.

32. The method of claim 30, further comprising:

providing a viewer configured to enable a user to view and manipulate the final 3D model.