Shape from shading
A novel algorithm for color constancy
International Journal of Computer Vision
International Journal of Computer Vision
Generalization of the Lambertian model and implications for machine vision
International Journal of Computer Vision
The Illumination-Invariant Recognition of 3D Objects Using Local Color Invariants
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Color constancy for scenes with varying illumination
Computer Vision and Image Understanding - Special issue on physics-based modeling and reasoning in computer vision
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Real-time tracking of image regions with changes in geometry and illumination
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
What is the Spectral Dimensionality of Illumination Functions in Outdoor Scenes?
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
A Testbed for Realistic Image Synthesis
IEEE Computer Graphics and Applications
Optimal Solution of the Dichromatic Model for Multispectral Photometric Invariance
SSPR & SPR '08 Proceedings of the 2008 Joint IAPR International Workshop on Structural, Syntactic, and Statistical Pattern Recognition
| Hi-index | 0.00 |
The light reflected from a surface depends on the scene geometry, the incident illumination and the surface material. One of the properties of the material is its albedo r(l) and its variation with respect to wavelength. The albedo of a surface is purely a physical property. Our perception of albedo is commonly referred to as colour. This paper presents a novel methodology for extracting the albedo of the various materials in the scene independent of incident light and scene geometry. A scene is captured under different narrow-band colour filters and the spectral derivatives of the scene are computed. The resulting spectral derivatives form a spectral gradient at each pixel. This spectral gradient is a normalized albedo descriptor which is invariant to scene geometry and incident illumination for diffuse surfaces.