Method of generating a Geodetic Reference Database Product
First Claim
1. Method of generating a geodetic reference database product, the method comprising:
- acquiring mobile mapping data captured by means of digital cameras, range sensors and position determination means mounted to a vehicle driving across the earth surface, the mobile mapping data comprising simultaneously captured image data, range data and associated position data in a geographic coordinate system;
determining linear stationary earth surface features from the mobile mapping data by processing the image data, range data and associated position data;
generating 3D-models for the linear stationary earth surface features in the geographic coordinate system from the image data, range data and associated position data; and
storing the 3D-models in a database to obtain the geodetic reference database product;
the method further comprising;
generating orthorectified images for the 3D-models by combining image data and range data,determining elevation information in the geographic coordinate system for pixels of the orthorectified images;
linking the orthorectified images and the elevation information to obtain 3D-orthorectified images; and
storing the 3D-orthorectified images and linking the images to respective 3D-models in the geodetic database product.
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Abstract
A method of generating a geodetic reference database product is disclosed The method comprises acquiring mobile mapping data captured by means of digital cameras, range sensors and position determination means including GPS and IMU mounted to a vehicle driving across the earth surface, the mobile mapping data comprising simultaneously captured image data, range data and associated position data in a geographic coordinate system. Linear stationary earth surface features are derived from the mobile mapping data by processing the image data, range data and associated position data. 3D-models are generated for the linear stationary earth surface features in the geographic coordinate system from the image data, range data and associated position data and stored in a database to obtain the geodetic reference database product. A 3D-model could include an image representing the colors of the surface of the 3D model or a set of smaller images representing photo-identifiable objects along the model. The 3D-models could be used to rectify aerial imagery, to correct digital elevation models and to improve the triangulation of digital elevation models.
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Citations
15 Claims
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1. Method of generating a geodetic reference database product, the method comprising:
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acquiring mobile mapping data captured by means of digital cameras, range sensors and position determination means mounted to a vehicle driving across the earth surface, the mobile mapping data comprising simultaneously captured image data, range data and associated position data in a geographic coordinate system; determining linear stationary earth surface features from the mobile mapping data by processing the image data, range data and associated position data; generating 3D-models for the linear stationary earth surface features in the geographic coordinate system from the image data, range data and associated position data; and storing the 3D-models in a database to obtain the geodetic reference database product; the method further comprising; generating orthorectified images for the 3D-models by combining image data and range data, determining elevation information in the geographic coordinate system for pixels of the orthorectified images; linking the orthorectified images and the elevation information to obtain 3D-orthorectified images; and storing the 3D-orthorectified images and linking the images to respective 3D-models in the geodetic database product. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12, 13, 15)
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6-8. -8. (canceled)
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9. A geodetic reference database product, wherein the product comprises:
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3D-models representative of linear stationary earth surface features; and orthorectified images representative of at least a part of the earth surface represented by a 3D model, wherein a pixel of an orthorectified image comprises associated elevation information, wherein the 3D-models and orthorectified images have been produced by; acquiring mobile mapping data captured by means of digital cameras, range sensors and position determination means mounted to a vehicle driving across the earth surface, the mobile mapping data comprising simultaneously captured image data, range data and associated position data in a geographic coordinate system; determining linear stationary earth surface features from the mobile mapping data by processing the image data, range data and associated position data generating 3D-models for the linear stationary earth surface features in the geographic coordinate system from the image data, range data and associated position data storing the 3D-models in a database to obtain the geodetic reference database product; generating orthorectified images for the 3D-models by combining image data and range data, determining elevation information in the geographic coordinate system for pixels of the orthorectified images; linking the orthorectified images and the elevation information to obtain 3D-orthorectified images; and storing the 3D-orthorectified images and linking the images to respective 3D-models in the geodetic database product.
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14. (canceled)
Specification