3D object acquisition method and apparatus using artificial light photograph
AssigneeKorea Advanced Institute of Science and Technology
InventorsMin Hyuk Kim, Giljoo Nam
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Abstract
Disclosed are herein a three-dimensional (3D) object acquisition method and an object acquisition apparatus using artificial light photographs. A 3D object acquisition method according to an embodiment of the present invention includes receiving a plurality of images of a 3D object photographed by a camera, reconstructing spatially-varying bidirectional reflectance distribution functions for the 3D object based on the plurality of images received, estimating shading normals for the 3D object based on the reconstructed spatially-varying bidirectional reflectance distribution functions, and acquiring 3D geometry for the 3D object based on the estimated shading normals.
Claims17
A three-dimensional (3D) object acquisition method comprising:
- receiving a plurality of images of a 3D object photographed by a camera;
- reconstructing spatially-varying bidirectional reflectance distribution functions for the 3D object based on the plurality of images received;
- estimating shading normals for the 3D object based on the reconstructed spatially-varying bidirectional reflectance distribution functions;
- and
- acquiring 3D geometry for the 3D object based on the estimated shading normals.
A three-dimensional (3D) object acquisition method, comprising:
- receiving a plurality of images of a 3D object photographed by a camera in a state in which an artificial light is turned on;
- and
- acquiring spatially-varying bidirectional reflectance distribution functions and 3D geometry of the 3D object based on the plurality of images received and a Poisson surface reconstruction method, wherein the acquiring of the spatially-varying bidirectional reflectance distribution functions and the 3D geometry includes:
- reconstructing the spatially-varying bidirectional reflectance distribution functions based on the plurality of images received;
- estimating shading normals for the 3D object based on the reconstructed spatially-varying bidirectional reflectance distribution functions;
- and
- acquiring the 3D geometry based on the estimated shading normals and the Poisson surface reconstruction method.
A three-dimensional (3D) object acquisition apparatus, comprising:
- a receiving unit configured to receive a plurality of images of a 3D object photographed by a camera;
- a reconstructing unit configured to reconstruct spatially-varying bidirectional reflectance distribution functions of the 3D object based on the plurality of images received;
- an estimating unit configured to estimate shading normals for the 3D object based on the reconstructed spatially-varying bidirectional reflectance distribution functions;
- and
- an acquiring unit configured to acquire 3D geometry for the 3D object based on the estimated shading normals.
Dependencies are inferred from the claim text.