Projection room 061 · educational reconstruction model
Shadow CT
Author an interior while it is visible. Veil it. Then rotate an emitter and detector around the object, gathering line-integral shadows until filtered backprojection can attempt a return. The angles you never collect leave a signature of their own.
1 · Make the hidden interior
2 · Gather shadows around the ring
Current evidence
No shadows gathered
No image is waiting underneath. The return will be assembled from acquired shadows.
Carry this authored interior
The code stores the 64 × 64 density field locally in text. It contains no scan or personal data.
Educational parallel-beam model only. This is not a medical scanner, diagnostic image, radiation model, or clinical claim. Negative edge ripples from the ideal ramp filter are shown rather than silently clipped from the evidence.