2-D Tomographic Reconstruction Demo

Version 1.6.1.0 (678 KB) by Ligong Han
Matlab demo for 2-D tomographic reconstruction
3.3
(6)
4.7K Downloads
Updated 13 Apr 2021
View License on GitHub

There are two main methods for tomographic reconstruction: one is based on Radon transform and its inverse transform such as filtered back-projection (FBP), another is based on solving linear algebra equations such as algebraic reconstruction technique (ART).
This toolbox includes tools for creating projections and reconstructing the image from projections:
tomo_projection_2d, computes projections of a given image;
build_weight_matrix, builds weighting factor matrix used for algebraic methods;
tomo_reconstruction_bp, reconstructs the image from its projections using BP method;
tomo_reconstruction_fbp, reconstructs the image from its projections using FBP method;
tomo_reconstruction_sart, reconstructs the image from its projections using SART method;
tomo_reconstruction_lsqr, reconstructs the image from its projections, equations are solved by calling the build-in lsqr function.
See demo.m for details.

Cite As

Ligong Han (2026). 2-D Tomographic Reconstruction Demo (https://github.com/phymhan/matlab-tomo-2d), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
Windows macOS Linux
Tags Add Tags

imtool

solver

test

utils

Versions that use the GitHub default branch cannot be downloaded

Version Published Release Notes
1.6.1.0

- removed art
1.6.0.0

Bug fixes in demo
- added a function 'imcrop_tomo' to crop the reconstructed image to the same size as the original image;
- enclosed a test function which illustrates the process of computing weighting factor matrix.
- updates high-pass filter
1.5.0.0

Change the diameter calculated in 'tomo_projection_2d' by adding 2, so that it will match the value computed from 'build_weight_matrix'.
1.4.0.0

- updated descriptions;
- fixed errors in art_solver.
1.3.0.0

- rearranged files
- rewrote demos
- added instructions
1.2.0.0

A more accurate method of building weight matrix
1.0.0.0

To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.