Computation of the Sign of the Gaussian Curvature of a Surface from Multiple Unknown Illumination Images without Knowledge of the Reflectance Property.
Takayuki OkataniKoichiro DeguchiPublished in: Comput. Vis. Image Underst. (1999)
Keyphrases
- gaussian curvature
- diffuse reflectance
- surface reflectance
- illumination direction
- smooth surfaces
- geometric structure
- image irradiance
- image data
- illumination conditions
- reflectance properties
- surface geometry
- spectral reflectance
- surface normals
- normal vectors
- lighting conditions
- light source
- shape index
- three dimensional
- surface shape
- shape from shading
- intensity values
- viewing direction
- scene geometry
- single image
- scale invariant
- point light source
- textured surfaces
- surface orientation
- input image
- object surface
- object recognition
- real objects
- photometric stereo
- image features
- specular reflection
- closed curves
- shape recovery
- color constancy
- reflectance model
- pixel intensities
- surface patches
- real scenes
- intensity images
- visual data
- surface reconstruction
- image sequences