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ICT
GL
| Image-based Separation of Diffuse and Specular Reflections using Environmental Structured Illumination | IEEE International Conference on Computational Photography (ICCP) 2009 |
| Bruce Lamond Pieter Peers Abhijeet Ghosh Paul Debevec |
| University of Southern California, Institute for Creative Technologies |
Diffuse-specular separation under controlled hemispherical illumination.
Left: A ceramic Sake bottle illuminated by uniform hemispherical illumination.
Middle: The extracted diffuse component under the same lighting condition.
Right: The corresponding extracted specular component
Abstract:
We present an image-based method for separating diffuse and specular reflections using environmental structured illumination. Two types of structured illumination are discussed: phase-shifted sine wave patterns, and phase-shifted binary stripe patterns. In both cases the low-pass filtering nature of diffuse reflections is utilized to separate the reflection components. We illustrate our method on a wide range of example scenes and applications.
Material:
ICCP 2009 Paper:
- iccp2009.pdf, 33Mb. ( Adobe Acrobat )
Supplemental Technical Report (contains extra examples and derivations):
- ICT-TR-01-2009.pdf, 114 MB. ( Adobe Acrobat )
Related Projects:
- Precursory Project:
- Reflective Light Stage:
- A Reflective Light Stage, Technical Report ICT-TR-04.2006
- Polarized Spherical Gradient Illumination:
- Light Stage 1
- Acquiring the Reflectance Field of a Human Face, SIGGRAPH 2000
- Facial Reflectance Field Demo, SIGGRAPH 2000 Creative Applications Laboratory