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 - 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.
UR - https://www.scopus.com/pages/publications/85048864800
UR - https://www.scopus.com/pages/publications/85048864800#tab=citedBy
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 -