1

This tutorial survey paper reviews several different models for light interaction with volume densities of absorbing, glowing, reflecting, and/or scattering material. They are, in order of increasing realism, absorption only, emission only, emission and absorption combined, single scattering of external illumination without shadows, single scattering with shadows, and multiple scattering. For e...

This paper explores two general methods for incorporating volumetric uncertainty information in direct volume rendering. The goal is to produce volume rendered images that depict regions of high (or low) uncertainty in the data. The first method involves incorporating the uncertainty information directly into the volume rendering equation. The second method involves post-processing information ...

For visualizing anatomical data sets, 3D techniques like direct volume rendering and surface rendering are well established For joint visualization of 3D data sets describing different properties of the object (like anatomical and functional information), 2D visualization techniques are dominant Hybrid methods play an emerging role Visualizing 2D slices is the most common approach, but: 2D info...

A scalar eld is a generalisation of a surface function in dimension. Visualisation traditionally focuses on discrete speci cations of scalar elds (e.g., volume datasets). This paper discusses the role of continuous and procedural eld speci cations in volume visualisation and volume graphics, and the inter-operations between continuous and discrete speci cations. It demonstrates the di erent use...

We present Cube-4, a special-purpose volume rendering architecture that is capable of rendering high-resolution (e.g., 10243) datasets at 30 frames per second. The underlying algorithm, called slice-parallel ray-casting, uses tri-linear interpolation of samples between data slices for parallel and perspective projections. The architecture uses a distributed interleaved memory, several parallel ...