🩻 Iterative CT Reconstruction in 3D — Low-Dose Noise Reduction

3D companion to the 2D iterative reconstruction simulator: a rotating CT gantry scans a phantom, the sinogram is built from real line integrals with Poisson photon noise, and the slice is reconstructed live with filtered back-projection, weighted iterative updates, an edge-preserving model-based penalty or a denoiser. The reconstruction is shown as a displaced height surface so noise appears as real 3D roughness. Drag the lesions and the noise ROI inside the gantry and watch noise, CNR and the noise power spectrum respond.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install