Discrete-time signal processing
Discrete-time signal processing
Generalization of the Lambertian model and implications for machine vision
International Journal of Computer Vision
Bidirectional Reflection Distribution Function Expressed in Terms of Surface Scattering Modes
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume II - Volume II
Reflectance and Texture of Real-World Surfaces Authors
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
3D Texture Recognition Using Bidirectional Feature Histograms
International Journal of Computer Vision
International Journal of Computer Vision - Special Issue on Texture Analysis and Synthesis
A Fourier Theory for Cast Shadows
IEEE Transactions on Pattern Analysis and Machine Intelligence
Surface detail in computer models
Image and Vision Computing
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The observed image texture for a rough surface has a complex dependence on the illumination and viewing angles due to effects such as local shading, interreflections, and the shadowing and occlusion of surface elements. We introduce the dimensionality surface as a representation for the visual complexity of a material sample. The dimensionality surface defines the number of basis textures that are required to represent the space of observed textures for a surface as a function of ranges of illumination and viewing angles. Basis textures are represented using multiband correlation functions. We study properties of the dimensionality surface for real materials using the Columbia Utrecht Reflectance and Texture (CUReT) database. The analysis shows that the dependence of the dimensionality 5Urface on ranges of illumination and viewing angles is approximately linear with a slope dependent on the complexity of the sample.