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5 CONCLUSIONS
This paper proposed an out-of-core volume ren-
dering architecture. We have combined the ren-
dering process with level-of-detail and parallelism
techniques.
We also presented a new data structure to stor-
age blocks used in the rendering process. The data
structure together with the memory mapping tech-
nique allowed to store large images using small
quantity of main memory. We tested the spatial
structure with volumetric data sets acquired from
different types of equipments.
ACKNOWLEDGEMENTS
The authors are grateful to FAPESP, CNPq, and
CAPES for the financial support. They are also
thankful to Cristiane Ibanhes Polo, Ph.D. student ...