Acquiring and characterizing plane-to-ray indirect light transport

Hiroyuki Kubo, Suren Jayasuriya, Takafumi Iwaguchi, Takuya Funatomi, Yasuhiro Mukaigawa, Srinivasa G. Narasimhan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


Separation of light transport into direct and indirect paths has enabled new visualizations of light in everyday scenes. However, indirect light itself contains a variety of components from subsurface scattering to diffuse and specular interreflections, all of which contribute to complex visual appearance. In this paper, we present a new imaging technique that captures and analyzes these components of indirect light via light transport between epipolar planes of illumination and rays of received light. This plane-to-ray light transport is captured using a rectified projector-camera system where we vary the offset between projector and camera rows (implemented as synchronization delay) as well as the exposure of each camera row. The resulting delay-exposure stack of images can capture live short and long-range indirect light transport, disambiguate subsurface scattering, diffuse and specular interreflections, and distinguish materials according to their subsurface scattering properties.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Computational Photography, ICCP 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages10
ISBN (Electronic)9781538625262
StatePublished - May 29 2018
Event2018 IEEE International Conference on Computational Photography, ICCP 2018 - Pittsburgh, United States
Duration: May 4 2018May 6 2018


Other2018 IEEE International Conference on Computational Photography, ICCP 2018
CountryUnited States

ASJC Scopus subject areas

  • Signal Processing
  • Computational Mathematics
  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Acquiring and characterizing plane-to-ray indirect light transport'. Together they form a unique fingerprint.

Cite this