TY - GEN
T1 - Acquiring and characterizing plane-to-ray indirect light transport
AU - Kubo, Hiroyuki
AU - Jayasuriya, Suren
AU - Iwaguchi, Takafumi
AU - Funatomi, Takuya
AU - Mukaigawa, Yasuhiro
AU - Narasimhan, Srinivasa G.
N1 - Funding Information:
and the Defense Advanced Research Projects Agency (REVEAL Grant HR00111620021).
Funding Information:
The authors would like to thank Supreeth Achar and Joe Bartels for help with Episcan3D prototype development, and Vishwanath Saragadam for his helpful comments. This work was sponsored by the JSPS program for advancing strategic international networks to accelerate the circulation of talented researchers (G2802), KAKENHI grant number JP15K16027, the NAIST global collaboration program,
Publisher Copyright:
© 2018 IEEE.
PY - 2018/5/29
Y1 - 2018/5/29
N2 - 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.
AB - 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.
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U2 - 10.1109/ICCPHOT.2018.8368461
DO - 10.1109/ICCPHOT.2018.8368461
M3 - Conference contribution
AN - SCOPUS:85048864800
T3 - IEEE International Conference on Computational Photography, ICCP 2018
SP - 1
EP - 10
BT - IEEE International Conference on Computational Photography, ICCP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE International Conference on Computational Photography, ICCP 2018
Y2 - 4 May 2018 through 6 May 2018
ER -