easy learn tomographic reconstruction

• 数学基础 Radon 变换 + 傅里叶切片定理
• fbp vs ir
• fbp add ir
• based gpu (astra-toolbox and tigre)
• tomophantom (体模生成库)
• rtk (not run on gpu directly,now not used.)
• axial and helical (now ,just axial)

env

uv cuda cupy astra tigre tomophantom matplotlib

examples

batch_view.py

dicom to picture

fbp_vs_ir.py

• fbp filters

fbp vs ir

2d fan hybrid

sirt os-sart

astra_hybrid.py

axial cone hybrid

tv-os-sart+fdk

fdk filter

astra_cone_hybrid.py

helical cone hybrid

tv-os-sart+fdk

astra_cone_hybrid.py

result

optimize #010 select astra(gpu) for production select tigre(gpu) for research select rtk for cpu

TODO

add production model clibration c++ code

install

note:tigre and tomophantom need install by github path install_by_uv

option gpu moniter

https://github.com/msminhas93/nviwatch cargo install nviwatch

nviwatch

cupy

uv pip install cupy-cuda12x 2>&1 | tail -5

cpp

cd src_astra_cpp cmake -S . -B build cmake --build build -j

.venv/bin/python src_astra_cpp/tools/make_phantom.py src_astra_cpp/build/astra_axial src_astra_cpp/data/vol_gt.raw img_3d_axial/astra_cpp src_astra_cpp/build/astra_helical src_astra_cpp/data/vol_gt.raw img_3d_helical/astra_cpp

cpp python tools

.venv/bin/python src_astra_cpp/tools/make_phantom.py # 1. 体模 .venv/bin/python src_astra_cpp/tools/make_sino_noisy.py both # 2. 共享噪声 (轴向+螺旋) src_astra_cpp/build/astra_axial ... # 3. 重建 (自动加载噪声)

rust

cd src_astra_rust && cargo build --release # 零依赖, 离线可编 src_astra_rust/target/release/astra_rs_axial src_astra_cpp/data/vol_gt.raw img_3d_axial/astra_rs src_astra_rust/target/release/astra_rs_helical src_astra_cpp/data/vol_gt.raw img_3d_helical/astra_rs