A dual-domain diffusion model with analytic cone-beam projectors reconstructs CBCT volumes from 90-degree limited-angle scans, achieving MAE 35.5 HU and SSIM 0.84 on simulated pelvic data.
2 Projection -DDPM The Projection-DDPM module is de designed to generate a complete set of synthetic projections ๐ฬ1:360โ from limited-angle projections ๐ฬ135โ:225โ
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Limited-Angle CBCT Reconstruction via Geometry-Integrated Cycle-domain Denoising Diffusion Probabilistic Models
A dual-domain diffusion model with analytic cone-beam projectors reconstructs CBCT volumes from 90-degree limited-angle scans, achieving MAE 35.5 HU and SSIM 0.84 on simulated pelvic data.