Natural language interface to the question-answering system for physicians
Computers and Artificial Intelligence
Surface Reflection: Physical and Geometrical Perspectives
IEEE Transactions on Pattern Analysis and Machine Intelligence
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Separation of Reflection Components Using Color and Polarization
International Journal of Computer Vision
Non-linear approximation of reflectance functions
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Object shape and reflectance modeling from observation
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
MAPS: multiresolution adaptive parameterization of surfaces
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Reflection space image based rendering
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Inverse global illumination: recovering reflectance models of real scenes from photographs
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Acquiring the reflectance field of a human face
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Surface light fields for 3D photography
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
From Few to Many: Illumination Cone Models for Face Recognition under Variable Lighting and Pose
IEEE Transactions on Pattern Analysis and Machine Intelligence
Reconstruction and representation of 3D objects with radial basis functions
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Image-based rendering of diffuse, specular and glossy surfaces from a single image
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Homomorphic factorization of BRDFs for high-performance rendering
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Image-based 3D photography using opacity hulls
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Light field mapping: efficient representation and hardware rendering of surface light fields
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Frequency space environment map rendering
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Efficient rendering of spatial bi-directional reflectance distribution functions
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
Helmholtz Stereopsis: Exploiting Reciprocity for Surface Reconstruction
International Journal of Computer Vision
Clustered principal components for precomputed radiance transfer
ACM SIGGRAPH 2003 Papers
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Inverse rendering for computer graphics
Inverse rendering for computer graphics
Face Recognition Based on Fitting a 3D Morphable Model
IEEE Transactions on Pattern Analysis and Machine Intelligence
Radial Basis Functions
Incorporating the Torrance and Sparrow Model of Reflectance in Uncalibrated Photometric Stereo
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
ACM Transactions on Graphics (TOG)
IEEE Transactions on Pattern Analysis and Machine Intelligence
Efficiently combining positions and normals for precise 3D geometry
ACM SIGGRAPH 2005 Papers
A frequency analysis of light transport
ACM SIGGRAPH 2005 Papers
Shape and materials by example: a photometric stereo approach
CVPR'03 Proceedings of the 2003 IEEE computer society conference on Computer vision and pattern recognition
Image-based reconstruction of spatially varying materials
EGWR'01 Proceedings of the 12th Eurographics conference on Rendering
Image-based BRDF measurement including human skin
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Recovering surface reflectance and multiple light locations and intensities from image data
Pattern Recognition Letters
Principles of appearance acquisition and representation
ACM SIGGRAPH 2008 classes
Practical modeling and acquisition of layered facial reflectance
ACM SIGGRAPH Asia 2008 papers
Principles of Appearance Acquisition and Representation
Foundations and Trends® in Computer Graphics and Vision
Circularly polarized spherical illumination reflectometry
ACM SIGGRAPH Asia 2010 papers
Scattered data interpolation and approximation for computer graphics
ACM SIGGRAPH ASIA 2010 Courses
Estimating dual-scale properties of glossy surfaces from step-edge lighting
Proceedings of the 2011 SIGGRAPH Asia Conference
Robust estimation of surface properties and interpolation of shadow/specularity components
Image and Vision Computing
Estimating specular roughness and anisotropy from second order spherical gradient illumination
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Efficient basis decomposition for scattered reflectance data
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Optimized image sampling for view and light interpolation
VAST'09 Proceedings of the 10th International conference on Virtual Reality, Archaeology and Cultural Heritage
Reflectance and natural illumination from a single image
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part VI
Robust luminance and chromaticity for matte regression in polynomial texture mapping
ECCV'12 Proceedings of the 12th international conference on Computer Vision - Volume 2
Acquiring reflectance and shape from continuous spherical harmonic illumination
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Efficient reconstruction, decomposition and editing for spatially-varying reflectance data
Proceedings of Graphics Interface 2013
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Three-dimensional appearance models consisting of spatially varying reflectance functions defined on a known shape can be used in analysis-by-synthesis approaches to a number of visual tasks. The construction of these models requires the measurement of reflectance, and the problem of recovering spatially varying reflectance from images of known shape has drawn considerable interest. To date, existing methods rely on either: 1) low-dimensional (e.g., parametric) reflectance models, or 2) large data sets involving thousands of images (or more) per object. Appearance models based on the former have limited accuracy and generality since they require the selection of a specific reflectance model a priori, and while approaches based on the latter may be suitable for certain applications, they are generally too costly and cumbersome to be used for image analysis. We present an alternative approach that seeks to combine the benefits of existing methods by enabling the estimation of a nonparametric spatially varying reflectance function from a small number of images. We frame the problem as scattered-data interpolation in a mixed spatial and angular domain, and we present a theory demonstrating that the angular accuracy of a recovered reflectance function can be increased in exchange for a decrease in its spatial resolution. We also present a practical solution to this interpolation problem using a new representation of reflectance based on radial basis functions. This representation is evaluated experimentally by testing its ability to predict appearance under novel view and lighting conditions. Our results suggest that since reflectance typically varies slowly from point to point over much of an object's surface, we can often obtain a nonparametric reflectance function from a sparse set of images. In fact, in some cases, we can obtain reasonable results in the limiting case of only a single input image.