Sliding texture volume rendering

Details Sliding texture volume rendering Sliding texture volume rendering

2005-05-19

2008-12-02

Nguyen, Kimbinh T (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S420000, C345S421000, C345S422000, C345S423000, C345S424000, C345S582000, C345S583000, C345S607000, C345S608000, C345S609000, C345S613000, C345S623000

Reexamination Certificate

active

07460117

ABSTRACT:
Subsets of volume data are sequentially stored for volume rendering from two dimensional textures. For example, pairs of adjacent two-dimensional images are loaded into RAM or cache. One or more strips of texture data are interpolated for polygons extending between the two-dimensional images. The strips or polygons are more orthogonal to a viewing direction than the two-dimensional images. After interpolating texture data from the two-dimensional images for a plurality of non-coplanar polygons, the texture data is rendered. The rendered information represents one portion of the three dimensional representation. Other portions are rendered by repeating the process for other pairs or subset groups of adjacent two-dimensional images. A lower cost apparatus, such as a programmed computer or a GPU with a limited amount of memory, is able to render images for three dimensional representations of very large three-dimensional arrays. The images may be rendered without copying volume data for different main axes. Different scaling or varying spatial relationships between the two-dimensional images representing the volume may be used. The polygons are varied to account for the differences, avoiding computationally intensive resampling.

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