mmWave Propagation Prediction using Hardware- Accelerated Monte Carlo Path Tracing

Realistic image synthesis technology is an important part in computer graphics. Monte Carlo based light simulation methods, such as Monte Carlo path tracing, can deal with complex lighting computations for complex scenes, in the field of realistic image synthesis. Unfortunately, if the samples taken for each pixel are not enough, the generated images have a lot of random noise. Adaptive sampling is attractive to reduce image noise. This paper proposes a new GH-distance based adaptive sampling algorithm. Experimental results show that the method can perform better than other similar ones.

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Adaptive sampling with Renyi entropy in Monte Carlo path tracing

Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005. ◽

10.1109/isspit.2005.1577198 ◽

2006 ◽

Author(s):

Qing Xu ◽

Ruijuan Hu ◽

Lianping Xing ◽

Yuan Xu

Keyword(s):

Monte Carlo ◽

Adaptive Sampling ◽

Renyi Entropy ◽

Rényi Entropy ◽

Path Tracing

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A path reuse method for specular surface reflection in Monte Carlo path tracing

2017 International Conference on Applied System Innovation (ICASI) ◽

10.1109/icasi.2017.7988282 ◽

2017 ◽

Cited By ~ 1

Author(s):

Chang-Yu Tang ◽

Chun-Fa Chang

Keyword(s):

Monte Carlo ◽

Specular Surface ◽

Surface Reflection ◽

Path Tracing

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Acceleration of Monte Carlo path tracing in general environments

Proceedings the Eighth Pacific Conference on Computer Graphics and Applications ◽

10.1109/pccga.2000.883883 ◽

2002 ◽

Cited By ~ 2

Author(s):

F. Perez ◽

I. Martin ◽

F.X. Sillion ◽

X. Pueyo

Keyword(s):

Monte Carlo ◽

Path Tracing

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A Path‐Tracing Monte Carlo Library for 3‐D Radiative Transfer in Highly Resolved Cloudy Atmospheres

Journal of Advances in Modeling Earth Systems ◽

10.1029/2018ms001602 ◽

2019 ◽

Vol 11 (8) ◽

pp. 2449-2473 ◽

Cited By ~ 4

Author(s):

Najda Villefranque ◽

Richard Fournier ◽

Fleur Couvreux ◽

Stéphane Blanco ◽

Céline Cornet ◽

...

Keyword(s):

Monte Carlo ◽

Radiative Transfer ◽

Path Tracing

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Generalized Light Portals

Proceedings of the ACM on Computer Graphics and Interactive Techniques ◽

10.1145/3406176 ◽

2020 ◽

Vol 3 (2) ◽

pp. 1-19

Author(s):

Shinji Ogaki

Keyword(s):

Monte Carlo ◽

Sampling Method ◽

Sampling Strategy ◽

Sampling Techniques ◽

Two Dimensional ◽

Multiple Importance Sampling ◽

Path Tracing ◽

Environment Map ◽

Efficient Sampling ◽

Polygon Meshes

Light portals are useful for accelerating the convergence of Monte Carlo path tracing when rendering interiors. However, they are generally limited to flat polygonal shapes. In this paper, we introduce a new concept that allows existing polygon meshes with arbitrary shaders in a scene to be used as generalized light portals. We also present an efficient sampling method that takes into account the pixel values of the environment map and ray guiding two-dimensional textures that are typically opacity or transparency maps. This novel sampling strategy can be combined with other sampling techniques by using multiple importance sampling.

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