Dense Light Transport for Relighting Computation Using Orthogonal Illumination Based on Walsh-Hadamard Matrix
Summary :
We propose a practical method that acquires dense light transports from unknown 3D objects by employing orthogonal illumination based on a Walsh-Hadamard matrix for relighting computation. We assume the presence of color crosstalk, which represents color mixing between projector pixels and camera pixels, and then describe the light transport matrix by using sets of the orthogonal illumination and the corresponding camera response. Our method handles not only direct reflection light but also global light radiated from the entire environment. Tests of the proposed method using real images show that orthogonal illumination is an effective way of acquiring accurate light transports from various 3D objects. We demonstrate a relighting test based on acquired light transports and confirm that our method outputs excellent relighting images that compare favorably with the actual images observed by the system.
- Publication
- IEICE TRANSACTIONS on Information Vol.E99-D No.4 pp.1038-1051
- Publication Date
- 2016/04/01
- Publicized
- 2016/01/28
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2015CYP0002
- Type of Manuscript
- Special Section PAPER (Special Section on Cyberworlds)
- Category
Authors
Isao MIYAGAWA
NTT Corporation
Yukinobu TANIGUCHI
NTT Corporation
Keyword
Latest Issue
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Isao MIYAGAWA, Yukinobu TANIGUCHI, "Dense Light Transport for Relighting Computation Using Orthogonal Illumination Based on Walsh-Hadamard Matrix" in IEICE TRANSACTIONS on Information,
vol. E99-D, no. 4, pp. 1038-1051, April 2016, doi: 10.1587/transinf.2015CYP0002.
Abstract: We propose a practical method that acquires dense light transports from unknown 3D objects by employing orthogonal illumination based on a Walsh-Hadamard matrix for relighting computation. We assume the presence of color crosstalk, which represents color mixing between projector pixels and camera pixels, and then describe the light transport matrix by using sets of the orthogonal illumination and the corresponding camera response. Our method handles not only direct reflection light but also global light radiated from the entire environment. Tests of the proposed method using real images show that orthogonal illumination is an effective way of acquiring accurate light transports from various 3D objects. We demonstrate a relighting test based on acquired light transports and confirm that our method outputs excellent relighting images that compare favorably with the actual images observed by the system.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2015CYP0002/_p
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@ARTICLE{e99-d_4_1038,
author={Isao MIYAGAWA, Yukinobu TANIGUCHI, },
journal={IEICE TRANSACTIONS on Information},
title={Dense Light Transport for Relighting Computation Using Orthogonal Illumination Based on Walsh-Hadamard Matrix},
year={2016},
volume={E99-D},
number={4},
pages={1038-1051},
abstract={We propose a practical method that acquires dense light transports from unknown 3D objects by employing orthogonal illumination based on a Walsh-Hadamard matrix for relighting computation. We assume the presence of color crosstalk, which represents color mixing between projector pixels and camera pixels, and then describe the light transport matrix by using sets of the orthogonal illumination and the corresponding camera response. Our method handles not only direct reflection light but also global light radiated from the entire environment. Tests of the proposed method using real images show that orthogonal illumination is an effective way of acquiring accurate light transports from various 3D objects. We demonstrate a relighting test based on acquired light transports and confirm that our method outputs excellent relighting images that compare favorably with the actual images observed by the system.},
keywords={},
doi={10.1587/transinf.2015CYP0002},
ISSN={1745-1361},
month={April},}
Copy
TY - JOUR
TI - Dense Light Transport for Relighting Computation Using Orthogonal Illumination Based on Walsh-Hadamard Matrix
T2 - IEICE TRANSACTIONS on Information
SP - 1038
EP - 1051
AU - Isao MIYAGAWA
AU - Yukinobu TANIGUCHI
PY - 2016
DO - 10.1587/transinf.2015CYP0002
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E99-D
IS - 4
JA - IEICE TRANSACTIONS on Information
Y1 - April 2016
AB - We propose a practical method that acquires dense light transports from unknown 3D objects by employing orthogonal illumination based on a Walsh-Hadamard matrix for relighting computation. We assume the presence of color crosstalk, which represents color mixing between projector pixels and camera pixels, and then describe the light transport matrix by using sets of the orthogonal illumination and the corresponding camera response. Our method handles not only direct reflection light but also global light radiated from the entire environment. Tests of the proposed method using real images show that orthogonal illumination is an effective way of acquiring accurate light transports from various 3D objects. We demonstrate a relighting test based on acquired light transports and confirm that our method outputs excellent relighting images that compare favorably with the actual images observed by the system.
ER -
English
