A Method for Generating Rectangle Area Light Source Using Water Surface Lighting

Liu Feipeng

doi:doi:10.11648/j.sd.20180602.17

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A Method for Generating Rectangle Area Light Source Using Water Surface Lighting

Liu Feipeng

Published in Science Discovery (Volume 6, Issue 2)

Received: 20 June 2018 Published: 22 June 2018

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Abstract

Light reconstruction refers to the calculation of light source information based on the actual lighting. In order to ensure the consistency of light illumination, the method based on light source modeling has been widely applied in real scenes, but the research on generating virtual light sources using real lighting results under virtual scenes is relatively scarce. In this paper, a method for generating a rectangle surface light for a virtual scene using water surface light images is proposed. Firstly, light shadow in water surface is extracted by the seed superpixel propagation method after superpixel segmentaion. Secondly, the boundary of each light shadow region is extracted using the superpixel label. Finally, important sampling, based on the physical rendering of the BRDF model, is used on the points in the light shadow boundary, and a rectangular area surface light source corresponding to each light shadow is calculated by a ray-traced rectangular area surface light source generation algorithm. It is proven that rectangular surface light source can be generated precisely in a virtual scene by comparing with the actual rectangular area light source.

Published in	Science Discovery (Volume 6, Issue 2)
DOI	10.11648/j.sd.20180602.17
Page(s)	116-123
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Area Light, Surper Pixel, Ray Tracing, Light Reconstruction

References

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[12]	Art Owen, Yi Zhou Associate. Safe and Effective Importance Sampling[J]. Journal of the American Statistical Association, 2000, 95(449):135-143.
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[16]	Kanbara M, Yokoya N. Real-time estimation of light source environment for photorealistic augmented reality [C] //Proceedings of the 17th International Conference on Pattern Recognition. Los Alamitos: IEEE Computer Society Press, 2004, 2:911-914.
[17]	Zhou W, Kambhamettu C. A unified framework for scene illuminant estimation[J]. Image and Vision Computing, 2008, 26(3): 415-429.
[18]	Lee S, Jung S K. Estimation of illuminants for plausible lighting in augmented reality [C] //Proceedings of the International Symposium on Ubiquitous Virtual Reality. Los Alamitos: IEEE Computer Society Press, 2011: 17-20.
[19]	NVIDIA. 2016. Nvidia optix ray tracing engine. http://developer.nvidia.com/optix.

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APA Style

Liu Feipeng. (2018). A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Science Discovery, 6(2), 116-123. https://doi.org/10.11648/j.sd.20180602.17

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ACS Style

Liu Feipeng. A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Sci. Discov. 2018, 6(2), 116-123. doi: 10.11648/j.sd.20180602.17

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AMA Style

Liu Feipeng. A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Sci Discov. 2018;6(2):116-123. doi: 10.11648/j.sd.20180602.17

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@article{10.11648/j.sd.20180602.17,
  author = {Liu Feipeng},
  title = {A Method for Generating Rectangle Area Light Source Using Water Surface Lighting},
  journal = {Science Discovery},
  volume = {6},
  number = {2},
  pages = {116-123},
  doi = {10.11648/j.sd.20180602.17},
  url = {https://doi.org/10.11648/j.sd.20180602.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180602.17},
  abstract = {Light reconstruction refers to the calculation of light source information based on the actual lighting. In order to ensure the consistency of light illumination, the method based on light source modeling has been widely applied in real scenes, but the research on generating virtual light sources using real lighting results under virtual scenes is relatively scarce. In this paper, a method for generating a rectangle surface light for a virtual scene using water surface light images is proposed. Firstly, light shadow in water surface is extracted by the seed superpixel propagation method after superpixel segmentaion. Secondly, the boundary of each light shadow region is extracted using the superpixel label. Finally, important sampling, based on the physical rendering of the BRDF model, is used on the points in the light shadow boundary, and a rectangular area surface light source corresponding to each light shadow is calculated by a ray-traced rectangular area surface light source generation algorithm. It is proven that rectangular surface light source can be generated precisely in a virtual scene by comparing with the actual rectangular area light source.},
 year = {2018}
}

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TY  - JOUR
T1  - A Method for Generating Rectangle Area Light Source Using Water Surface Lighting
AU  - Liu Feipeng
Y1  - 2018/06/22
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180602.17
DO  - 10.11648/j.sd.20180602.17
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 116
EP  - 123
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180602.17
AB  - Light reconstruction refers to the calculation of light source information based on the actual lighting. In order to ensure the consistency of light illumination, the method based on light source modeling has been widely applied in real scenes, but the research on generating virtual light sources using real lighting results under virtual scenes is relatively scarce. In this paper, a method for generating a rectangle surface light for a virtual scene using water surface light images is proposed. Firstly, light shadow in water surface is extracted by the seed superpixel propagation method after superpixel segmentaion. Secondly, the boundary of each light shadow region is extracted using the superpixel label. Finally, important sampling, based on the physical rendering of the BRDF model, is used on the points in the light shadow boundary, and a rectangular area surface light source corresponding to each light shadow is calculated by a ray-traced rectangular area surface light source generation algorithm. It is proven that rectangular surface light source can be generated precisely in a virtual scene by comparing with the actual rectangular area light source.
VL  - 6
IS  - 2
ER  -

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Author Information

Liu Feipeng

College of Computer Science, Beihang University, Beijing, China

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APA Style

Liu Feipeng. (2018). A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Science Discovery, 6(2), 116-123. https://doi.org/10.11648/j.sd.20180602.17

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ACS Style

Liu Feipeng. A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Sci. Discov. 2018, 6(2), 116-123. doi: 10.11648/j.sd.20180602.17

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AMA Style

Liu Feipeng. A Method for Generating Rectangle Area Light Source Using Water Surface Lighting. Sci Discov. 2018;6(2):116-123. doi: 10.11648/j.sd.20180602.17

Copy | Download

@article{10.11648/j.sd.20180602.17,
  author = {Liu Feipeng},
  title = {A Method for Generating Rectangle Area Light Source Using Water Surface Lighting},
  journal = {Science Discovery},
  volume = {6},
  number = {2},
  pages = {116-123},
  doi = {10.11648/j.sd.20180602.17},
  url = {https://doi.org/10.11648/j.sd.20180602.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180602.17},
  abstract = {Light reconstruction refers to the calculation of light source information based on the actual lighting. In order to ensure the consistency of light illumination, the method based on light source modeling has been widely applied in real scenes, but the research on generating virtual light sources using real lighting results under virtual scenes is relatively scarce. In this paper, a method for generating a rectangle surface light for a virtual scene using water surface light images is proposed. Firstly, light shadow in water surface is extracted by the seed superpixel propagation method after superpixel segmentaion. Secondly, the boundary of each light shadow region is extracted using the superpixel label. Finally, important sampling, based on the physical rendering of the BRDF model, is used on the points in the light shadow boundary, and a rectangular area surface light source corresponding to each light shadow is calculated by a ray-traced rectangular area surface light source generation algorithm. It is proven that rectangular surface light source can be generated precisely in a virtual scene by comparing with the actual rectangular area light source.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - A Method for Generating Rectangle Area Light Source Using Water Surface Lighting
AU  - Liu Feipeng
Y1  - 2018/06/22
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180602.17
DO  - 10.11648/j.sd.20180602.17
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 116
EP  - 123
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180602.17
AB  - Light reconstruction refers to the calculation of light source information based on the actual lighting. In order to ensure the consistency of light illumination, the method based on light source modeling has been widely applied in real scenes, but the research on generating virtual light sources using real lighting results under virtual scenes is relatively scarce. In this paper, a method for generating a rectangle surface light for a virtual scene using water surface light images is proposed. Firstly, light shadow in water surface is extracted by the seed superpixel propagation method after superpixel segmentaion. Secondly, the boundary of each light shadow region is extracted using the superpixel label. Finally, important sampling, based on the physical rendering of the BRDF model, is used on the points in the light shadow boundary, and a rectangular area surface light source corresponding to each light shadow is calculated by a ray-traced rectangular area surface light source generation algorithm. It is proven that rectangular surface light source can be generated precisely in a virtual scene by comparing with the actual rectangular area light source.
VL  - 6
IS  - 2
ER  -

Copy | Download