ct_scan op• データ種: projstack × ctgeometry → voxel
• 呼び出し: import fullseye as fs; fs.ledger.ct_adjoint_project(projections, geometry, device='auto') (実装を直接呼ぶなら import ctscan; ctscan.ct_adjoint_project(projections, geometry, device='auto')、台帳から引くなら opstomography.get("ct_adjoint_project"))
• GPU: なし(CPU 参照実装のみ)
The exact transpose A^T of ct_forward_project.
<A x, y> = <x, A^T y> holds to rounding, on every scan. This is what an iterative solver needs; it is not the reconstruction fdk_reconstruct does.
:param projections: (view, V, U) array. :param geometry: dict from ct_scan_geometry. :param device: "auto", "cpu" or "cuda". :returns: (Z, Y, X) float volume. :raises ValueError: on a shape that disagrees with the geometry. Empty input
(projections with 0 elements) raises ValueError.
• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。
• ct_scan_modes — py -3.11 examples/ct_scan_modes.py
voxel を入力に取れる)radon_volume · ct_forward_project
ct_scan)ct_scan_geometry · shepp_logan_3d · ellipsoid_phantom · ellipsoid_projections · ct_forward_project · fdk_reconstruct · sirt_reconstruct · os_sart_reconstruct
*Provenance: ctscan.py — TOMOGRAPHY operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.