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US 2023/0068686 A1Published application
Some automated and semi-automated tools for linear feature extraction in two and three dimensions
AssigneeDigitalGlobe, Inc.
InventorsJacek Grodecki, Seth Malitz, Josh Nolting
Life of this patent
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Abstract
A system for vector extraction comprising a vector extraction engine stored and operating on a network-connected computing device that loads raster images from a database stored and operating on a network-connected computing device, identifies features in the raster images, and computes a vector based on the features, and methods for feature and vector extraction.
Claims14
A system for three-dimensional feature extraction from imagery of a surface, comprising:
- a vector extraction engine operating on a computing device or network of computing devices;
- wherein the vector extraction engine:
- receives a stereoscopic raster image pair of the surface, the stereoscopic image pair comprising a first raster image and a second raster image;
- identifies one or more image features that are homologous between the first raster image and second raster image;
- computes a vector difference between the first raster image and the second raster image for each of the identified image features;
- constructs a three-dimensional digital surface model of the surface based on the vector differences.
3 more elements
A method for three-dimensional feature extraction from image data of a surface, comprising the steps of:
- receiving, using a vector extraction engine operating on a computing device or network of computing devices,
- a stereoscopic raster image pair of the surface, the stereoscopic image pair comprising a first raster image and a second raster image;
- and
- identifying, using a vector extraction engine stored and operating on a workstation computer, one or more image features that are homologous between the first raster image and second raster image;
- computing a vector difference between the first raster image and the second raster image for each of the identified image features;
- and
- constructing a three-dimensional digital surface model of the surface based on the vector differences.
4 more elements
Dependencies are inferred from the claim text.