Estimating specular roughness from polarized second order spherical gradient illumination.
Abhijeet GhoshTongbo ChenPieter PeersCyrus A. WilsonPaul E. DebevecPublished in: SIGGRAPH Talks (2009)
Keyphrases
- diffuse reflectance
- specular reflection
- surface roughness
- light source
- photometric stereo
- spectral reflectance
- spatially varying
- directional derivatives
- three dimensional
- higher order
- single image
- input image
- spherical harmonics
- reflectance properties
- reflectance model
- illumination conditions
- edge detection
- multiple light sources