Display of surfaces from volume data
TL;DR: In this article, a volume-rendering technique for the display of surfaces from sampled scalar functions of 3D spatial dimensions is discussed, which is not necessary to fit geometric primitives to the sampled data; images are formed by directly shading each sample and projecting it onto the picture plane.
read more
Abstract: The application of volume-rendering techniques to the display of surfaces from sampled scalar functions of three spatial dimensions is discussed. It is not necessary to fit geometric primitives to the sampled data; images are formed by directly shading each sample and projecting it onto the picture plane. Surface-shading calculations are performed at every voxel with local gradient vectors serving as surface normals. In a separate step, surface classification operators are applied to compute a partial opacity of every voxel. Operators that detect isovalue contour surfaces and region boundary surfaces are examined. The technique is simple and fast, yet displays surfaces exhibiting smooth silhouettes and few other aliasing artifacts. The use of selective blurring and supersampling to further improve image quality is described. Examples from molecular graphics and medical imaging are given. >
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Representation and rendering of implicit surfaces
Christian Sigg
- 01 Jan 2006
TL;DR: The semi-regular structure was employed to develop a hashed octree which can be more efficient in terms of performance and memory footprint than the common pointer-based variant and to increase numerical stability, the surfaces deformed by the levelset method are represented by a field with constant gradient length.
22
A scalable architecture for volume rendering
Günter Knittel
- 01 Sep 1995
TL;DR: The operational principles of a scalable hardware accelerator for volume rendering are described, which provides an atomic unit which already provides sophisticated volume graphics at interactive rendering speed and can then be achieved by operating multiple units in parallel.
22
Hierarchical volume analysis and visualization based on morphological operators
Christoph Lürig,Thomas Ertl +1 more
- 18 Oct 1998
TL;DR: A morphology based hierarchical analysis is proposed to estimate the optical properties of the volume to be rendered, which reduces the three dimensional analysis to a one dimensional computation, as it is done in tensor product based linear filters.
22
MedVis: A Real-Time Immersive Visualization Environment for the Exploration of Medical Volumetric Data
Rui Shen,Pierre Boulanger,Michelle Noga +2 more
- 09 Jul 2008
TL;DR: The Medical Visualizer is a real-time visualization system for analyzing medical volumetric data in various virtual environments, such as autostereoscopic displays, dual-projector screens and immersive environments such as the CAVE.
State-of-the-Art in Volume Graphics
Arie E. Kaufman
- 01 Jan 2000
TL;DR: Volume visualisation is a method of extracting meaningful information from volumetric data using interactive graphics and imaging, and it is concerned with volume data representation, modelling, manipulation, and rendering.
22
References
Marching cubes: A high resolution 3D surface construction algorithm
William E. Lorensen,Harvey E. Cline +1 more
- 01 Aug 1987
TL;DR: In this paper, a divide-and-conquer approach is used to generate inter-slice connectivity, and then a case table is created to define triangle topology using linear interpolation.
Illumination for computer generated pictures
TL;DR: Human visual perception and the fundamental laws of optics are considered in the development of a shading rule that provides better quality and increased realism in generated images.
Compositing digital images
Thomas K Porter,Thomas Douglas Selkirk Duff +1 more
- 01 Jan 1984
TL;DR: In this article, a matte component can be computed similarly to the color channels for four-channel pictures, and guidelines for the generation of elements and arithmetic for their arbitrary compositing are discussed.
1.4K
Compositing digital images
PorterThomas,DuffTom +1 more
TL;DR: Most computer graphics pictures have been computed all at once, so that the rendering program takes care of all computations relating to the overlap of objects.
645
Shading 3D-Images from CT Using Gray-Level Gradients
Karl Heinz Höhne,Ralph Bernstein +1 more
TL;DR: For the 3D-reconstruction of organ surfaces from tomograms, a shading method based on the partial volume effect is presented and it is shown, that at least for bone and soft tissue surfaces, the results are superior to conventional shading.
288
Related Papers (5)
[...]
Robert Drebin,Loren C. Carpenter,Pat Hanrahan +2 more
- 01 Jun 1988
William E. Lorensen,Harvey E. Cline +1 more
- 01 Aug 1987