Mosaic Oblique Images and Methods of Making and Using Same
First Claim
1. A system comprising:
- a computer system running image processing software that when executed by the computer system causes the computer system to;
receive an identification of a desired geographical area to be imaged and collected into an oblique-mosaic image;
assign surface locations to pixels included in an oblique-mosaic pixel map of the desired geographical area encompassing multiple source images, the oblique-mosaic pixel map being part of a mathematical model of a virtual camera looking down at an oblique angle onto the desired geographical area;
create a ground elevation model of the ground and vertical structures within the oblique-mosaic pixel map using overlapping source images of the desired geographical area, wherein the source images were captured at an oblique angle and compass direction similar to the oblique angle and compass direction of the virtual camera; and
reproject, with the mathematical model, source oblique image pixels of the overlapping source images for pixels included in the oblique-mosaic pixel map using the ground elevation model to thereby create an oblique-mosaic image of the desired area.
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Abstract
A computer system running image processing software receives an identification of a desired geographical area to be imaged and collected into an oblique-mosaic image; creates a mathematical model of a virtual camera looking down at an oblique angle, the mathematical model having an oblique-mosaic pixel map of the desired area encompassing multiple source images; assigns surface locations to pixels included in the oblique-mosaic pixel map; creates a ground elevation model of the ground and vertical structures within the oblique-mosaic pixel map using overlapping source images of the desired geographical area, wherein the source oblique images were captured at an oblique angle and compass direction similar to that of the virtual camera; and reprojects, with the mathematical model, source oblique image pixels of the overlapping source images for pixels included in the oblique-mosaic pixel map using the ground elevation model to thereby create an oblique-mosaic image of the desired area.
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Citations
18 Claims
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1. A system comprising:
a computer system running image processing software that when executed by the computer system causes the computer system to; receive an identification of a desired geographical area to be imaged and collected into an oblique-mosaic image; assign surface locations to pixels included in an oblique-mosaic pixel map of the desired geographical area encompassing multiple source images, the oblique-mosaic pixel map being part of a mathematical model of a virtual camera looking down at an oblique angle onto the desired geographical area; create a ground elevation model of the ground and vertical structures within the oblique-mosaic pixel map using overlapping source images of the desired geographical area, wherein the source images were captured at an oblique angle and compass direction similar to the oblique angle and compass direction of the virtual camera; and reproject, with the mathematical model, source oblique image pixels of the overlapping source images for pixels included in the oblique-mosaic pixel map using the ground elevation model to thereby create an oblique-mosaic image of the desired area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
a computer system running image processing software that when executed by the computer system causes the computer system to; receive an identification of a desired geographical area to be imaged and collected into an oblique-mosaic image; determine geographic coordinates for pixels included in an oblique-mosaic pixel map of the desired geographical area encompassing multiple source images, the oblique-mosaic pixel map being part of a mathematical model of a virtual camera looking down at an oblique angle onto the desired geographical area; create a ground elevation model of the ground and vertical structures within the oblique-mosaic pixel map using overlapping source images of the desired geographical area, wherein the source images were captured at an oblique angle and compass direction similar to the oblique angle and compass direction of the virtual camera; and reproject, with the mathematical model, using the ground elevation model to define a ground surface and surfaces of vertical structures within the desired geographical area, at least one source oblique image pixel of the overlapping source images from a vantage point of the virtual camera for pixels included in the oblique-mosaic pixel map to thereby create a geo-referenced oblique-mosaic image of the desired geographical area. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification