Acquiring the reflectance field of a human face
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
Synthetic aperture confocal imaging
ACM SIGGRAPH 2004 Papers
ACM SIGGRAPH 2005 Papers
A Theory of Inverse Light Transport
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
Projection defocus analysis for scene capture and image display
ACM SIGGRAPH 2006 Papers
ACM SIGGRAPH 2006 Papers
Fast separation of direct and global components of a scene using high frequency illumination
ACM SIGGRAPH 2006 Papers
Multiplexing for Optimal Lighting
IEEE Transactions on Pattern Analysis and Machine Intelligence
An estimator for the diagonal of a matrix
Applied Numerical Mathematics
Compressive light transport sensing
ACM Transactions on Graphics (TOG)
Kernel Nyström method for light transport
ACM SIGGRAPH 2009 papers
Circularly polarized spherical illumination reflectometry
ACM SIGGRAPH Asia 2010 papers
Optical computing for fast light transport analysis
ACM SIGGRAPH Asia 2010 papers
A dual theory of inverse and forward light transport
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part II
Coded Strobing Photography: Compressive Sensing of High Speed Periodic Videos
IEEE Transactions on Pattern Analysis and Machine Intelligence
Looking Around the Corner using Ultrafast Transient Imaging
International Journal of Computer Vision
Structured light 3D scanning in the presence of global illumination
CVPR '11 Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
Video from a single coded exposure photograph using a learned over-complete dictionary
ICCV '11 Proceedings of the 2011 International Conference on Computer Vision
Combining confocal imaging and descattering
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Symmetric photography: exploiting data-sparseness in reflectance fields
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part VI
Decomposing Global Light Transport Using Time of Flight Imaging
International Journal of Computer Vision
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We present primal-dual coding, a photography technique that enables direct fine-grain control over which light paths contribute to a photo. We achieve this by projecting a sequence of patterns onto the scene while the sensor is exposed to light. At the same time, a second sequence of patterns, derived from the first and applied in lockstep, modulates the light received at individual sensor pixels. We show that photography in this regime is equivalent to a matrix probing operation in which the elements of the scene's transport matrix are individually re-scaled and then mapped to the photo. This makes it possible to directly acquire photos in which specific light transport paths have been blocked, attenuated or enhanced. We show captured photos for several scenes with challenging light transport effects, including specular inter-reflections, caustics, diffuse inter-reflections and volumetric scattering. A key feature of primal-dual coding is that it operates almost exclusively in the optical domain: our results consist of directly-acquired, unprocessed RAW photos or differences between them.