Generating 3d building models with ground level and orthogonal images
AssigneeHover Inc.
InventorsShaohui Sun, Ioannis Pavlidis, Adam J. Altman
Life of this patent
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Abstract
A system and method is provided for generating textured 3D building models from ground-level and orthogonal imagery. Ground-level images for the sides of building objects are collected to form a 3D dense point cloud for identification of key architectural features, corresponding key façade geometry planes, and generation of a 3D building façade geometry. Orthogonal images are correlated to the 3D building model providing a properly geo-positioned, scaled and textured 3D building model.
Claims20
A method of generating a textured building model, the method comprising:
- collecting a plurality of captured ground-level images for at least a first side of a building object;
- creating a point cloud from the collected plurality of ground-level images;
- outlining a plurality of vertices for defining edges of at least a single planar surface;
- selecting a plurality of data points from the created point cloud that represent the single planar surface within the created point cloud;
- creating simplified façade geometry for the first side;
- and
- texturing the simplified façade geometry with at least one of the collected plurality of captured ground-level images.
A system for generating a textured 3D building model, the system comprising:
- a capture device for capturing a plurality of ground-level images of a building object;
- an orthogonal image database for retrieving an orthogonal image of the building object;
- an image processor for constructing a textured 3D building model of the building object from the captured plurality of ground-level images of the building object and reconstructing the textured 3D building model according to the retrieved orthogonal image;
- and
- a viewer device for displaying the reconstructed textured 3D building model.
A method for generating a textured 3D building model, the method comprising:
- capturing a plurality of ground-level images of a façade of a building object;
- creating a point cloud from the plurality of ground level images;
- creating at least one textured façade from the created point cloud;
- correlating the textured façade with a corresponding vertical edge of a retrieved orthogonal image;
- and
- creating a textured 3D building model of the building object from the correlated textured façade and orthogonal image.
Dependencies are inferred from the claim text.