Mosaic oblique images and methods of making and using same
First Claim
1. A method for creating an aerial oblique-mosaic image from a plurality of aerial source oblique images, comprising the steps of:
- identifying a desired geographical area to be imaged and collected into the aerial oblique-mosaic image;
creating a mathematical model of a sensor of a virtual camera, where the virtual camera has an elevation greater than an elevation of the area to be imaged, the mathematical model having an oblique-mosaic pixel map for the sensor of the desired area;
determining surface locations for pixels included in the oblique-mosaic pixel map, wherein the surface locations for the pixels include first surface locations of the ground and second surface locations of objects above the ground;
for pixels included in the oblique-mosaic pixel map, selecting aerial source oblique images of the surface locations of the pixels captured at an oblique angle and compass direction similar to an oblique angle and compass direction of the virtual camera; and
reprojecting source oblique image pixels of the area to be imaged for pixels included in the oblique-mosaic pixel map to thereby create the aerial oblique-mosaic image of the desired geographical area, the aerial oblique-mosaic image having a natural appearance.
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Abstract
A computer system running image processing software receives an identification of a desired scene of a geographical area for which an oblique-mosaic image is desired including one or more geometry parameters of a virtual camera; creates a mathematical model of the virtual camera having mathematical values that define the camera geometry parameters that configure the model to capture the geographical area, and looking down at an oblique angle; creates a ground elevation model of the ground and vertical structures within the oblique-mosaic pixel map, wherein source images were captured at an oblique angle and compass direction similar to the oblique angle and compass direction 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 the oblique-mosaic image of the geographical area.
176 Citations
20 Claims
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1. A method for creating an aerial oblique-mosaic image from a plurality of aerial source oblique images, comprising the steps of:
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identifying a desired geographical area to be imaged and collected into the aerial oblique-mosaic image; creating a mathematical model of a sensor of a virtual camera, where the virtual camera has an elevation greater than an elevation of the area to be imaged, the mathematical model having an oblique-mosaic pixel map for the sensor of the desired area; determining surface locations for pixels included in the oblique-mosaic pixel map, wherein the surface locations for the pixels include first surface locations of the ground and second surface locations of objects above the ground; for pixels included in the oblique-mosaic pixel map, selecting aerial source oblique images of the surface locations of the pixels captured at an oblique angle and compass direction similar to an oblique angle and compass direction of the virtual camera; and reprojecting source oblique image pixels of the area to be imaged for pixels included in the oblique-mosaic pixel map to thereby create the aerial oblique-mosaic image of the desired geographical area, the aerial oblique-mosaic image having a natural appearance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system, comprising:
a computer system running image processing software that when executed by the computer system causes the computer system to; identify a desired geographical area to be imaged and collected into an aerial oblique-mosaic image; create a mathematical model of a sensor of a virtual camera, where the virtual camera has an elevation greater than an elevation of the area to be imaged, the mathematical model having an oblique-mosaic pixel map for the sensor of the desired area; determine surface locations for pixels included in the oblique-mosaic pixel map, wherein the surface locations for the pixels include first surface locations of the ground and second surface locations of objects above the ground; for pixels included in the oblique-mosaic pixel map, select aerial source oblique images of the surface locations of the pixels captured at an oblique angle and compass direction similar to an oblique angle and compass direction of the virtual camera; and reproject source oblique image pixels of the area to be imaged for pixels included in the oblique-mosaic pixel map to thereby create the aerial oblique-mosaic image of the desired geographical area, the aerial oblique-mosaic image having a natural appearance. - View Dependent Claims (15, 16, 17, 18, 19, 20)
Specification