System and method for mosaicing digital ortho-images
DCFirst Claim
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1. A method of mosaicing two overlapping digital input images together to form an output image, comprising the steps of:
- providing a reference image, comprising a number of green-dominant pixels having certain average color intensity and average elevation;
providing a secondary image, comprising a number of green-dominant pixels having certain average color intensity and average elevation, that overlaps the reference image in an overlap area;
scaling pixel values of the secondary image within the overlap area such that the color intensity of the secondary image green-dominant pixels within the overlap area is equivalent to the average color intensity of the reference image green-dominant pixels within the overlap area;
selecting an initial seam line within the overlap area;
determining a position of an elevated feature in a small segment of the overlapping area from a digital elevation model; and
establishing the seam line within the overlap area, wherein the route of the seam line is altered based upon the position of an elevated feature.
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Abstract
The present invention provides a system and method for mosaicing multiple input images, captured by one or more remote sensors, into a seamless mosaic of an area of interest. Each set of input images captured by the remote sensors within a capture interval are ortho-rectified and mosaiced together into a composite image. Successive composite images, along a given flight path, are then mosaiced together to form a strip. Adjacent strips are then mosaiced together to form a final image of the area of interest.
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4 Claims
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1. A method of mosaicing two overlapping digital input images together to form an output image, comprising the steps of:
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providing a reference image, comprising a number of green-dominant pixels having certain average color intensity and average elevation; providing a secondary image, comprising a number of green-dominant pixels having certain average color intensity and average elevation, that overlaps the reference image in an overlap area; scaling pixel values of the secondary image within the overlap area such that the color intensity of the secondary image green-dominant pixels within the overlap area is equivalent to the average color intensity of the reference image green-dominant pixels within the overlap area; selecting an initial seam line within the overlap area; determining a position of an elevated feature in a small segment of the overlapping area from a digital elevation model; and establishing the seam line within the overlap area, wherein the route of the seam line is altered based upon the position of an elevated feature. - View Dependent Claims (2, 3, 4)
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Specification