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Diffstat (limited to 'cuda/3d/cone_bp.cu')
| -rw-r--r-- | cuda/3d/cone_bp.cu | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cuda/3d/cone_bp.cu b/cuda/3d/cone_bp.cu index 6b2c8a1..7312bbc 100644 --- a/cuda/3d/cone_bp.cu +++ b/cuda/3d/cone_bp.cu @@ -253,6 +253,9 @@ bool transferConstants(const SConeProjection* angles, unsigned int iProjAngles, // FDK weighting factor // ( || u v s || / || u v (s-x) || ) ^ 2 + // Since u and v are ratios with the same denominator, we have + // a degree of freedom to scale the denominator. We use that to make + // the square of the denominator equal to the relevant weighting factor. for (unsigned int i = 0; i < iProjAngles; ++i) { |