Polarimetric Spatio-Temporal Light Transport Probing

  title={Polarimetric Spatio-Temporal Light Transport Probing},
  author={Seung-Hwan Baek and Felix Heide},
  journal={ACM SIGGRAPH 2021 Emerging Technologies},
Fig. 1. We propose a computational light-transport probing method that acquires the decomposed light transport into complete polarization states along with spatial and temporal dimensions. We model this multi-dimensional light transport as a tensor and analyze low-rank structures in the polarization domain which is exploited by our polarimetric probing method. We instantiate our approach with two imaging systems for spatio-polarimetric and coaxial temporal-polarimetric capture. (a)&(d… Expand


Decomposing Global Light Transport Using Time of Flight Imaging
  • Di Wu, A. Velten, +4 authors R. Raskar
  • Physics, Computer Science
  • 2012 IEEE Conference on Computer Vision and Pattern Recognition
  • 2012
This paper takes the first steps toward analyzing light transport using the high temporal resolution information of time of flight (ToF) images, and exploits the time profile to decompose light transport into its constituent direct, subsurface scattering, and interreflection components. Expand
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Simultaneous acquisition of polarimetric SVBRDF and normals
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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… Expand
Optical computing for fast light transport analysis
The experiments suggest that good quality relighting and transport inversion are possible from a few dozen low-dynamic range photos, even for scenes with complex shadows, caustics, and other challenging lighting effects. Expand