A New Ray Casting Algorithm Based on an Adjustable Threshold and Error Controlling
| Autor: | Dong Hai Ji, Wen Juan Wang, Yan Jun Peng |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Computer science
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION General Engineering Volume rendering computer.software_genre Rendering (computer graphics) Visualization Unbiased rendering Minimum bounding box Voxel Ray casting Algorithm computer ComputingMethodologies_COMPUTERGRAPHICS Interpolation |
| Zdroj: | Advanced Materials Research. 811:575-580 |
| ISSN: | 1662-8985 |
| DOI: | 10.4028/www.scientific.net/amr.811.575 |
| Popis: | Volume rendering is an important visualization technique that can accurately display the interior information of data. The Ray-casting algorithm is simple and easy to realize, which often apply to area needs high quality resulting image. The new algorithm in this paper uses a spherical bounding box to remove useless rays, an adjustable threshold to skip the empty voxels and avoid unnecessary interpolation computing. To further accelerate the rendering speed, an adjustable error is set to change interpolation types. Experiment proves that the new algorithm effectively accelerates the rendering speed and guarantees the rendering quality. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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