Importance Driven Environment Map Sampling

Importance Driven Environment Map Sampling
复制标题

重要性驱动的环境地图采样

DOI:
10.1109/tvcg.2013.258
复制
发表时间:
2014
影响因子:
5.2
通讯作者:
Bashford-Rogers T
Bashford-Rogers T
中科院分区:
计算机科学1区
文献类型:
--
作者:
Bashford-Rogers T

文献摘要

参考文献

被引文献

相似文献

在本文中,我们提出了一种有效的方法,支持基于图像的照明(IBL)的双向方法。这改进了环境的采样以及场景的重要区域(例如窗户和门)的检测和采样。场景的这些部分通常具有与整个场景的面积成比例的小面积,因此以低概率生成穿过它们的路径。本文提出的方法提高了采样效率,考虑到视图的重要性,并修改照明分布,使用光传输信息的相机。该方法在与相机位置相关的位置中自动构造采样分布,从而改善光路的采样。这种方法可以应用到几个双向渲染方法,结果显示为双向路径跟踪,大都会光传输和渐进光子映射。与其他方法相比,效率结果表明速度提高了几个数量级。
In this paper we present an efficient method for supporting image based lighting (IBL) for bidirectional methods. This improves both sampling of the environment, and the detection and sampling of important regions of the scene, such as windows and doors. These parts of the scene often have a small area proportional to that of the entire scene, so paths which pass through them are generated with a low probability. The method proposed in this paper improves sampling efficiency, by taking into account view importance, and modifies the lighting distribution to use light transport information from the camera. This method automatically constructs a sampling distribution in locations which are relevant to the camera position, thereby improving sampling of light paths. This approach can be applied to several bidirectional rendering methods, and results are shown for bidirectional path tracing, metropolis light transport and progressive photon mapping. When compared to other methods, efficiency results demonstrate speed ups of orders of magnitude.
重要性驱动的蒙特卡罗光追踪
DOI: --
发表时间: 1995
期刊:
影响因子: --
作者:
P. Dutré;Y. Willems
通讯作者: Y. Willems
用于高效重要性采样的自适应数值累积分布函数
DOI: --
发表时间: 2005
期刊: Eurographics Symposium on Rendering
影响因子: --
作者:
Jason Lawrence;S. Rusinkiewicz;R. Ramamoorthi
通讯作者: R. Ramamoorthi
DOI: --
发表时间: 2009
期刊: J. Graphics, GPU, & Game Tools
影响因子: --
作者:
H. Dammertz;Johannes Hanika
通讯作者: Johannes Hanika
DOI: --
发表时间: 2006
期刊: Eurographics Symposium on Rendering
影响因子: --
作者:
Abhijeet Ghosh;Arnaud Doucet;Wolfgang Heidrich
通讯作者: Wolfgang Heidrich
DOI: --
发表时间: 2005
期刊: Eurographics Symposium on Rendering
影响因子: --
作者:
David Burke;A. Ghosh;W. Heidrich
通讯作者: W. Heidrich