FDK_CUDA¶
This is a GPU implementation of the FDK algorithm for 3D circular cone beam data sets.
It takes projection data as input, and returns the reconstruction.
Supported geometries: only cone. (cone_vec is not supported.)
Configuration options¶
| name | type | description |
|---|---|---|
| cfg.ProjectionDataId | required | The astra_mex_data3d ID of the projection data |
| cfg.ReconstructionDataId | required | The astra_mex_data3d ID of the reconstruction data. |
| cfg.option.ShortScan | optional | If enabled, do Parker weighting to support non-360-degree data. This needs an angle range of at least 180 degrees plus twice the cone angle. (default: false) |
| cfg.option.GPUindex | optional | The index (zero-based) of the GPU to use. (default: 0) |
| cfg.option.VoxelSuperSampling | optional | For the backward projection, VoxelSuperSampling^3 rays will be used. This should only be used if your voxels in the reconstruction volume are larger than the detector pixels. (default: 1) |