Efficient Linear Re-rendering for Interactive Lighting Design
Efficient Linear Re-rendering for Interactive Lighting Design
复制标题
交互式照明设计的高效线性重新渲染
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
D. Heeger
中科院分区：
文献类型：
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作者：
P. Teo;Eero P. Simoncelli;D. Heeger
我们提出了一个基于线性重新渲染的交互式照明设计框架。假设场景和相机几何形状固定，渲染操作相对于光源是线性的。这种线性意味着场景可以通过一组基础图像的线性组合以交互方式重新渲染，每个基础图像在特定的基础光下渲染。我们专注于选择和设计一套合适的基础灯。我们提供的基础示例允许 1) 交互式调整聚光灯方向，2) 交互式调整区域光位置，以及 3) 光源位置和方向调整的组合。我们讨论了一种在图像域中使用主成分分析来减小基底尺寸的方法。
We present a framework for interactive lighting design based on linear re-rendering. The rendering operation is linear with respect to light sources, assuming a fixed scene and camera geometry. This linearity means that a scene may be interactively re-rendered via linear combination of a set of basis images, each rendered under a particular basis light. We focus on choosing and designing a suitable set of basis lights. We provide examples of bases that allow 1) interactive adjustment of a spotlight direction, 2) interactive adjustment of the position of an area light, and 3) a combination in which light sources are adjusted in both position and direction. We discuss a method for reducing the size of the basis using principal components analysis in the image domain.