Learning Tomography: Direct Fourier Reconstruction

After the back-projection [Link] and iterative [Link] methods, the Direct Fourier Reconstruction technique allows to compute a reconstruction directly in frequency space.
>Here is an introduction of the principle of this algorithm.

Drawing a Chessboard:Associative Arrays

The use of associative arrays in JavaScript allows to add some object-oriented capabilities in a classical procedural programming. Here is a small explanation through our classical Drawing a Chessboard example.

Learning Tomography: WBP 3D reconstruction

In this series Learning Tomography, I always work with 2D slice ... Here is an example of a 3D reconstruction calculated with the weighted (or filtered) back-projection algorithm. The input data correspond to the stack of sinograms (previously calculated here [Link]).