GRAPPA is a popular parallel imaging reconstruction algorithm. Unfortunately there aren't a lot of easy to use Python implementations of it or its many variants available, so I decided to release this simple package.
There are also a couple reference SENSE-like implementations that have made their way into the package. This is to be expected -- a lot of later parallel imaging algorithms have hints of both GRAPPA- and SENSE-like inspirations.
Installation should be quick:
pip install pygrappa