Explanation

These pages describe how FORGE works and why it is built the way it is. Read them to understand a choice before you make it; for the exact options, see the reference.

Page	Explains
Operators	The encoding model, the operator convention, and how operators nest
The NUFFT	Gridding, oversampling, single-kz-plane mode and density compensation
Field correction	Off-resonance, the DFT and time-segmentation models, and how many segments to use
The solver and regularization	Penalized least squares, conjugate gradient, and choosing β
Low-rank reconstruction	The partial separability model behind oscillateRecon
GPU backends	What runs on the CPU, Metal and CUDA, and how memory is handled
Image orientation	How the NIfTI affine is built from ISMRMRD headers