Method and apparatus for capturing, geolocating and measuring oblique images

• US 8,233,666 B2
• Filed: 08/25/2011
• Issued: 07/31/2012
• Est. Priority Date: 11/08/2002
• Status: Expired due to Term

• Current Assignee: Pictometry International Corporation (EagleView Technologies Incorporated)
• Original Assignee: Pictometry International Corporation (EagleView Technologies Incorporated)
• Inventors: Schultz, Stephen L., Giuffrida, Frank D., Gray, Robert L., Mondello, Charles
• Primary Examiner(s): Carter, Aaron W
• Application Number:
  US13/217,885
• Publication Number:
  US 20120020571A1
• Time in Patent Office: 341 Days
• Field of Search: 382/106, 382/154, 382/284, 382/294, 348113-118, 348143-148, 356 3- 309, 356601-613, 356/628
• US Class Current: 382/106
• CPC Class Codes: G01C 11/02 Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
• CPC Class Codes: G01C 11/04 Interpretation of pictures
• CPC Class Codes: G03B 15/006 Apparatus mounted on flying objects
• CPC Class Codes: G03B 37/02 with scanning movement of lens or cameras
• CPC Class Codes: G06T 11/203 Drawing of straight lines or curves
• CPC Class Codes: G06T 17/05 Geographic models
• CPC Class Codes: G06T 2207/10032 Satellite or aerial image; Remote sensing
• CPC Class Codes: G06T 2207/30204 Marker
• CPC Class Codes: G06T 3/4038 Image mosaicing, e.g. composing plane images from plane sub-images
• CPC Class Codes: G06T 7/60 Analysis of geometric attributes

Abstract

A computerized system for displaying and making measurements based upon captured oblique images. The system includes a computer system executing image display and analysis software. The software reads a plurality of captured oblique images having corresponding geo-location data and a data table storing ground plane data that approximates at least a portion of the terrain depicted within the captured oblique images. The executed software causes the computer system to receive a starting point selected by a user, receive an end point selected by the user and calculate a desired measurement between the starting and end points dependent upon the geo-location data and ground plane data. The desired measurement is selected from a group consisting of a distance measuring mode, a height measuring mode, and a relative elevation measuring mode.

Claims

1. A computerized system for displaying and making measurements based upon captured oblique images, comprising:

a computer system executing image display and analysis software reading;

a plurality of captured oblique images having corresponding geo-location data; and

a data table storing ground plane data that closely approximates at least a portion of the terrain depicted within said captured oblique images;

wherein the image display and analysis software when executed by the computer system causes the computer system to receive a starting point selected by a user, receive an end point selected by the user and calculate a desired measurement between the starting and end points dependent upon the geo-location data and ground plane data, and

wherein the desired measurement is selected from a group consisting of a distance measuring mode calculating a distance between the starting point and the end point, a height measuring mode calculating a height difference between the starting point and the end point, and a relative elevation measuring mode calculating the difference in elevation of the starting point and the end point, and an area measurement mode calculating an area encompassed by at least three points.

2. The computerized system of claim 1, wherein the image display and analysis software when executed by processor causes the computer system to provide the measuring modes to the user as user-selectable measurement modes accessible through at least one of pull-down menus, toolbars and keyboard commands.

3. The computerized system of claim 1, wherein each of the captured oblique images were captured by an image-capturing device, the geo-location data further comprises at least one of:

time data representing the time when an oblique image is captured;

location data representing the location of the image-capturing device when an oblique image is captured;

orientation data representing the orientation of the image-capturing device when an oblique image is captured;

correction data representing correction factors for the image-capturing device; and

elevation data representing an average elevation of the surface captured by the image-capturing device.

4. The computerized system of claim 3, wherein the location data includes latitude, longitude, and altitude of the image-capturing device when an oblique image is captured.

5. The computerized system of claim 3, wherein the orientation data includes roll, pitch, yaw and heading of the image-capturing device when an oblique image is captured.

6. The computerized system of claim 3, wherein the image-capturing device is a camera and said correction data includes at least one of focal length, sensor size, aspect ratio, principle point offset, distortion, and pixel pitch.

7. The computerized system of claim 1, wherein the image display and analysis software when executed by the processor causes the computer system to receive one or more intermediate points selected by the user and representing a path between the starting and end points, and calculate a desired measurement along the path between the starting point and the end point.

8. The computerized system of claim 1, wherein the ground plane data includes a tessellated ground plane data, said ground plane data representing a tessellated ground plane that closely approximates at least a portion of the terrain depicted within the displayed oblique image, the tessellated ground plane comprising a plurality of interconnected facets, each facet having a respective pitch and slope.

9. The computerized system of claim 8, wherein the starting and end points correspond to at least one of the plurality of interconnected facets of the tessellated ground plane.

10. The computerized system of claim 9, wherein the image display and analysis software identifies which of the facets corresponds to the starting and end points and calculates an elevation of each point, the image display and analysis software using the calculated elevation to calculate the desired measurement between the starting and end points.

11. The computerized system of claim 8, wherein the tessellated ground plane is one of superimposed upon and fit to said displayed image.

12. A computerized system for displaying and making measurements, comprising:

a computer system executing image display and analysis software reading;

at least one oblique image having corresponding geo-location data; and

a data table storing ground plane data that closely approximates at least a portion of the terrain depicted within said captured oblique image;

wherein the image display and analysis software when executed by the computer system causes the computer system to display the oblique image, and calculate an area encompassed by at least three points on an object within the oblique image using the geo-location data and the ground plane data.

13. The computerized system of claim 12, wherein one of the points is a first point, and another one of the points is a second point, and wherein the first point has an elevation different from the second point whereby the area encompassed by the at least three points is sloped.

14. The computerized system of claim 12, wherein the image display and analysis software when executed by the computer system causes the computer system to receive the at least three points by user selection.

15. The computerized system of claim 14, wherein the data table is calculated for the oblique image prior to the computer system receiving the at least three points by user selection.

16. The computerized system of claim 12, wherein the object is a building.

17. The computerized system of claim 12, wherein the image display and analysis software when executed by the computer system causes the computer system to calculate elevations of the at least three points and utilize the elevations to calculate the area.

18. A computerized system for displaying and making measurements, comprising:

a computer system executing image display and analysis software reading;

at least one oblique image having corresponding geo-location position data;

wherein the image display and analysis software when executed by the computer system causes the computer system to display the oblique image, and calculate an area of a vertical or pitched surface encompassed by at least three points on an object within the oblique image using the geo-location position data associated with the image, and;

wherein a first point of the at least three points has a first elevation, and a second point of the at least three points has a second elevation, and wherein the first elevation and the second elevation are different.