A Theory of Photometric Stereo for a Class of Diffuse Non-Lambertian Surfaces
IEEE Transactions on Pattern Analysis and Machine Intelligence
Acquiring the reflectance field of a human face
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Illumination for computer generated pictures
Communications of the ACM
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Image Processing Handbook, Fourth Edition
Image Processing Handbook, Fourth Edition
Learning Object Representation form Lighting Variations
ECCV '96 Proceedings of the International Workshop on Object Representation in Computer Vision II
Appying Shape from Lighting Variation to Bump Map Capture
Proceedings of the Eurographics Workshop on Rendering Techniques '97
Recovering 3-D shape and reflectance from a small number of photographs
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
Computer display of curved surfaces.
Computer display of curved surfaces.
Beyond Lambert: Reconstructing Specular Surfaces Using Color
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Efficiently combining positions and normals for precise 3D geometry
ACM SIGGRAPH 2005 Papers
Performance relighting and reflectance transformation with time-multiplexed illumination
ACM SIGGRAPH 2005 Papers
Three-dimensional shape rendering from multiple images
Graphical Models
Building a digital model of Michelangelo's Florentine Pieta
IEEE Computer Graphics and Applications
Illustration of complex real-world objects using images with normals
Proceedings of the 5th international symposium on Non-photorealistic animation and rendering
Digital inspection: an interactive stage for viewing surface details
Proceedings of the 2008 symposium on Interactive 3D graphics and games
Facial performance synthesis using deformation-driven polynomial displacement maps
ACM SIGGRAPH Asia 2008 papers
Temporal upsampling of performance geometry using photometric alignment
ACM Transactions on Graphics (TOG)
Head-mounted photometric stereo for performance capture
ACM SIGGRAPH 2010 Emerging Technologies
Head-mounted photometric stereo for performance capture
ACM SIGGRAPH 2010 Talks
Dynamic shading enhancement for reflectance transformation imaging
Journal on Computing and Cultural Heritage (JOCCH)
A novel photometric method for real-time 3D reconstruction of fingerprint
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part II
Multiview face capture using polarized spherical gradient illumination
Proceedings of the 2011 SIGGRAPH Asia Conference
Coherent Spatiotemporal Filtering, Upsampling and Rendering of RGBZ Videos
Computer Graphics Forum
Surface Relief Analysis for Illustrative Shading
Computer Graphics Forum
Real-time recovery of moving 3D faces for emerging applications
Computers in Industry
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Photometric stereo recovers per-pixel estimates of surface orientation from images of a surface under varying lighting conditions. Transforming reflectance based on recovered normal directions is useful for enhancing the appearance of subtle surface detail. We present the first system that achieves real-time photometric stereo and reflectance transformation. A high-speed video camera, computer controlled light sources and fast GPU implementations of the algorithms enable both methods. We also present novel GPU-accelerated normal transformations before relighting that "amplify" shape detail. By applying standard image processing methods to our computed normal image, we can selectively enhance surface detail at different frequencies. Our system allows users in fields such as forensics, archeology and dermatology to investigate objects and surfaces by simply holding them in front of the camera. Real-time analysis of surface roughness for metrology can also be performed from the extracted normal field.