| 摘要 |
<p>In a volume rendering process, data including a plurality of voxels are recorded. Each voxel includes an opacity-adjusted value representative of a value of a parameter at a location within the volume. The process includes partitioning the plurality of voxels among a plurality of slices (2302), eac h slice corresponding to a respective region of the volume. Each slice is further partitioned into a plurality of cell (2304). Each cell represents a respective sub-region of the region associated with the slice. For each cell the process determines that the cell is nontransparent (2306) if more than a predetermined number of the voxels associated with the cell have an opacity- adjusted value greater than a predetermined value. Otherwise the cell is determined to be transparent. A texture value (2310) for each voxel for nontransparent cells only are stored, and the stored texture values are rendered.</p> |
