Ray-cast volume rendering accelerated by incremental trilinear interpolation and cell templates

Hao Ren Ke, Ruei Chuan Chang

研究成果: 雜誌貢獻期刊論文同行評審

5 引文 斯高帕斯(Scopus)

摘要

Two related ideas for improving the speed of ray-cast volume rendering are studied in this paper. The first is an incremental algorithm for trilinear interpolation, a method commonly used in ray-cast volume rendering to calculate sample values. The incremental algorithm can expedite trilinear interpolation when many samples along a ray are located in one cell. The second is an efficient hybrid volume rendering restricted to parallel projection. In the preprocessing stage, a cell template is created to store the information used by the incremental trilinear interpolation. When a cell is parallel projected, the information is retrieved from the template to compute the cell contribution. Because the algorithm with only one template may cause aliasing, an antialiasing technique exploiting multiple cell templates is proposed. With our method, ray-cast volume rendering can be accelerated considerably.

原文英語
頁(從 - 到)297-308
頁數12
期刊The Visual Computer
11
發行號6
DOIs
出版狀態已發佈 - 1995 六月 1

ASJC Scopus subject areas

  • 軟體
  • 電腦視覺和模式識別
  • 電腦繪圖與電腦輔助設計

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