THREE-DIMENSIONAL URBAN MODELING APPARATUS AND METHOD
First Claim
1. A three-dimensional (3D) urban modeling apparatus, comprising:
- a calibration unit for calibrating data about a translation and a rotation of at least one capturing device at a time that input aerial images and terrestrial images were captured;
a building model generation unit for generating at least one 3D building model based on the aerial images and the terrestrial images to which results of the calibration by the calibration unit have been applied;
a terrain model generation unit for generating a 3D terrain model by converting an input digital elevation model into a 3D mesh;
a texture extraction unit for extracting textures related to the building model and the terrain model from the aerial images and the terrestrial images; and
a model matching unit for generating a 3D urban model by matching the building model with the terrain model, which are based on the textures, with each other.
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Abstract
Disclosed herein is a 3D urban modeling apparatus and method. The 3D urban modeling apparatus includes a calibration unit for calibrating data about a translation and a rotation of at least one capturing device at a time that input aerial images and terrestrial images were captured. A building model generation unit generates at least one 3D building model based on the aerial images and the terrestrial images to which results of the calibration have been applied. A terrain model generation unit generates a 3D terrain model by converting an input digital elevation model into a 3D mesh. A texture extraction unit extracts textures related to the building model and the terrain model from the aerial images and the terrestrial images. A model matching unit generates a 3D urban model by matching the building model with the terrain model, which are based on the textures, with each other.
44 Citations
20 Claims
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1. A three-dimensional (3D) urban modeling apparatus, comprising:
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a calibration unit for calibrating data about a translation and a rotation of at least one capturing device at a time that input aerial images and terrestrial images were captured; a building model generation unit for generating at least one 3D building model based on the aerial images and the terrestrial images to which results of the calibration by the calibration unit have been applied; a terrain model generation unit for generating a 3D terrain model by converting an input digital elevation model into a 3D mesh; a texture extraction unit for extracting textures related to the building model and the terrain model from the aerial images and the terrestrial images; and a model matching unit for generating a 3D urban model by matching the building model with the terrain model, which are based on the textures, with each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A three-dimensional (3D) urban modeling method, comprising:
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calibrating data about a translation and a rotation of at least one capturing device at a time that input aerial images and terrestrial images were captured, using a calibration unit; generating at least one 3D building model based on the aerial images and the terrestrial images to which results of the calibration have been applied, using a building model generation unit; generating a 3D terrain model by converting an input digital elevation model into a 3D mesh, using a terrain model generation unit; extracting textures related to the building model and the terrain model from the aerial images and the terrestrial images, using a texture extraction unit; and generating a 3D urban model by matching the building model with the terrain model, which are based on the textures, with each other, using a model matching unit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification