# astra-toolbox-learning

**Repository Path**: x-ct/astra-toolbox-learning

## Basic Information

- **Project Name**: astra-toolbox-learning
- **Description**: 学习astra-toolbox工具的示例
- **Primary Language**: Unknown
- **License**: GPL-3.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-06-08
- **Last Updated**: 2026-06-09

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ASTRA Toolbox Learning Tutorial

## Project Overview

This project is a learning tutorial and practical code repository based on the ASTRA Tomography Toolbox, containing implementations of 2D and 3D CT reconstruction algorithms. The ASTRA Tomography Toolbox is an open-source library widely used in X-ray computed tomography. This project aims to help learners understand and master the principles and implementations of various reconstruction algorithms.

## Project Structure

### Basic Concepts and Geometries
- `001_concepts.py` - Basic Concepts of CT Reconstruction
- `002_2d_geometries.py` - 2D Geometry Reconstruction
- `003_3d_geometries.py` - 3D Geometry Reconstruction
- `004_projectors.py` - Projectors

### Data Processing
- `005_2d_data.py` - 2D Data Processing
- `006_3d_data.py` - 3D Data Processing

### Core Algorithms (CPU Version)
- `007_fp.py` - Forward Projection
- `008_bp.py` - Back Projection
- `009_fbp.py` - Filtered Back Projection
- `010_sirt.py` - Simultaneous Iterative Reconstruction Technique (SIRT)
- `011_sart.py` - Simultaneous Algebraic Reconstruction Technique (SART)
- `012_art.py` - Algebraic Reconstruction Technique (ART)
- `013_cgls.py` - Conjugate Gradient Least Squares (CGLS)

### CUDA-Accelerated Algorithms (2D)
- `020_fp_cuda.py` - CUDA Forward Projection
- `021_bp_cuda.py` - CUDA Back Projection
- `022_fbp_cuda.py` - CUDA Filtered Back Projection
- `023_sirt_cuda.py` - CUDA SIRT
- `024_sart_cuda.py` - CUDA SART
- `025_cgls_cuda.py` - CUDA CGLS
- `026_em_cuda.py` - CUDA Expectation-Maximization (EM)

### CUDA-Accelerated Algorithms (3D)
- `030_fp3d_cuda.py` - CUDA 3D Forward Projection
- `031_bp3d_cuda.py` - CUDA 3D Back Projection
- `032_fdk_cuda.py` - FDK 3D Reconstruction Algorithm
- `033_sirt3d_cuda.py` - CUDA 3D SIRT
- `044_cgls3d_cuda.py` - CUDA 3D CGLS

## Technology Stack

- Python
- ASTRA Tomography Toolbox
- CUDA (for GPU-accelerated computation)

## License

This project is licensed under the license specified in the LICENSE file.