An implementation of the procedures described in
Rogers BP, Blaber J, Newton AT, Hansen CB, Welch EB, Anderson AW, Luci JJ, Pierpaoli C, Landman BA. Phantom-based field maps for gradient nonlinearity correction in diffusion imaging. Proc SPIE Int Soc Opt Eng. 2018 Mar;10573. pii: 105733N. doi: 10.1117/12.2293786. PubMed PMID: 29887658; PubMed Central PMCID: PMC5990280.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990280/
Contributors: Baxter P. Rogers (code), Colin B. Hansen (code), Alan S. Barnett (testing/debugging)