reg23Topograms/README.md

2D/3D Registration with Digitally Reconstructed Topograms

This project provides a framework for 2D/3D registration using Digitally Reconstructed Topogram (DRT) images, which are generated from 3D CT volumes using a modified version of the Siddon-Jacobs ray casting algorithm.

In addition to DRT generation, the framework extends ITKTwoProjectionRegistration in several key areas, including:

• Compliance with IEC 61217
• Revised and consistent reference coordinate systems
• Improved handling of small transformations via trilinear interpolation of 3D CT voxel intensities, enhancing DRT rendering accuracy when transform magnitudes are below the CT resolution

Requirements

Work in progress — requirements and example code to be added.

Contributors

• Giovanni Fattori
• Riccardo Via