A tool for automated registration of 3D and 2D images within and across subjects and across imaging modalities. The AIR library can easily incorporate automated image registration into site specific programs adapted to your particular needs.Visit Website
DescriptionAIR allows automated registration of 3D and 2D images within and across subjects and within and sometimes across imaging modalities. AIR source code is written in C. The software also includes a graphical user interface, written in Tcl/Tk, for two of the most frequently used programs. The AIR package is distributed only as source code (no executables). In addition, a number of utility routines and error checking routines are provided. The AIR library can be used to easily incorporate automated image registration into site-specific programs adapted to your particular needs. Visit the AIR website.
UNIX configuration and compilation instructions:
The AIR package includes automated routines for aligning and reslicing tomographic image data, including intrasubject, intramodality registration (e.g., PET to PET or MRI to MRI); intrasubject, intermodality registration (e.g., PET to MRI); and intersubject registration (e.g. subject to subject or subject to atlas template) Intrasubject registration of brain images uses a rigid-body model. Intermodality registration has been validated for some (MRI-PET), but not all modalities. Intersubject registration can be performed using any of a variety of linear or nonlinear models to register different subjects to one another or to an atlas template (for example, an averaged brain in "Talairach space"). These models may also be useful for intrasubject registration of organs that are more deformable than brain or for tracking intrasubject developmental changes over time. In addition to 3D models, AIR includes homologous 2D deformation models that may be useful in selected circumstances (e.g., single slice fMRI data, pure 2D images, etc.).