Shape from shading in the light of mutual illumination
Image and Vision Computing - Special issue: 5th Alvey vision meeting
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Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th 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
Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
Inverse global illumination: recovering reflectance models of real scenes from photographs
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
A microfacet-based BRDF generator
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Image-based reconstruction of spatial appearance and geometric detail
ACM Transactions on Graphics (TOG)
Image-Based Reconstruction of Spatially Varying Materials
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Measuring bidirectional texture reflectance with a kaleidoscope
ACM SIGGRAPH 2003 Papers
Linear light source reflectometry
ACM SIGGRAPH 2003 Papers
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
A generalized surface appearance representation for computer graphics
A generalized surface appearance representation for computer graphics
ACM SIGGRAPH 2005 Papers
Performance relighting and reflectance transformation with time-multiplexed illumination
ACM SIGGRAPH 2005 Papers
A Theory of Inverse Light Transport
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
Inverse shade trees for non-parametric material representation and editing
ACM SIGGRAPH 2006 Papers
Multiview radial catadioptric imaging for scene capture
ACM SIGGRAPH 2006 Papers
Fast separation of direct and global components of a scene using high frequency illumination
ACM SIGGRAPH 2006 Papers
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Modeling anisotropic surface reflectance with example-based microfacet synthesis
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Kernel Nyström method for light transport
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Principles of Appearance Acquisition and Representation
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Shape and Spatially-Varying BRDFs from Photometric Stereo
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A Basis Illumination Approach to BRDF Measurement
International Journal of Computer Vision
Circularly polarized spherical illumination reflectometry
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Shape from second-bounce of light transport
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Experimental analysis of BRDF models
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EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
Image-based BRDF measurement including human skin
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Rapid acquisition of specular and diffuse normal maps from polarized spherical gradient illumination
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Symmetric photography: exploiting data-sparseness in reflectance fields
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Relativistic ultrafast rendering using time-of-flight imaging
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Frequency analysis of transient light transport with applications in bare sensor imaging
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Femto-photography: capturing and visualizing the propagation of light
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Low-budget transient imaging using photonic mixer devices
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Light-in-flight: transient imaging using photonic mixer devices
ACM SIGGRAPH 2013 Emerging Technologies
ACM Transactions on Graphics (TOG)
Decomposing Global Light Transport Using Time of Flight Imaging
International Journal of Computer Vision
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This paper introduces the concept of time-of-flight reflectance estimation, and demonstrates a new technique that allows a camera to rapidly acquire reflectance properties of objects from a single view-point, over relatively long distances and without encircling equipment. We measure material properties by indirectly illuminating an object by a laser source, and observing its reflected light indirectly using a time-of-flight camera. The configuration collectively acquires dense angular, but low spatial sampling, within a limited solid angle range - all from a single viewpoint. Our ultra-fast imaging approach captures space-time "streak images" that can separate out different bounces of light based on path length. Entanglements arise in the streak images mixing signals from multiple paths if they have the same total path length. We show how reflectances can be recovered by solving for a linear system of equations and assuming parametric material models; fitting to lower dimensional reflectance models enables us to disentangle measurements. We demonstrate proof-of-concept results of parametric reflectance models for homogeneous and discretized heterogeneous patches, both using simulation and experimental hardware. As compared to lengthy or highly calibrated BRDF acquisition techniques, we demonstrate a device that can rapidly, on the order of seconds, capture meaningful reflectance information. We expect hardware advances to improve the portability and speed of this device.