论文标题
基于切片的射线铸造的互动量照明
Interactive volume illumination of slice-based ray casting
论文作者
论文摘要
体积渲染始终在医学成像和工业设计领域起重要作用。近年来，全球照明的现实和互动量渲染可以改善体积数据集的形状和深度的感知。在本文中，提出了一种新颖而灵活的性能方法，以实现体积照明效应，例如音量阴影和其他散射效果。这受益于整个几何切片的基于切片的照明衰减缓冲区，以及光源的视点以及射线铸造中每个样品的高效率阴影或散射系数计算。这些测试表明，与射线铸造体积渲染或其他基于类似的基于切片的全局体积照明相比，该方法可以获得更好的体积照明效果和更可扩展的性能。
Volume rendering always plays an important role in the field of medical imaging and industrial design. In recent years, the realistic and interactive volume rendering of the global illumination can improve the perception of shape and depth of volumetric datasets. In this paper, a novel and flexible performance method of slice-based ray casting is proposed to implement the volume illumination effects, such as volume shadow and other scattering effects. This benefits from the slice-based illumination attenuation buffers of the whole geometry slices at the viewpoint of the light source and the high-efficiency shadow or scattering coefficient calculation per sample in ray casting. These tests show the method can obtain much better volume illumination effects and more scalable performance in contrast to the local volume illumination in ray casting volume rendering or other similar slice-based global volume illumination.
