In the same category of curve ftting, there's also work done by Itoh and Ohno ("A curve fitting algorithm for character fonts", https://pdfs.semanticscholar.org

In the same category of curve ftting, there's also work done by Itoh and Ohno ("A curve fitting algorithm for character fonts", https://pdfs.semanticscholar.org/e8fa/3b676324dc17ce3098ddbc218da7d6c6ea9f.pdf https://pdfs.semanticscholar.org/e8fa/3b676324dc17ce3098ddbc...) that tries to do the same kind of fitting, with fewer segments but slightly higher MSE. If you read graphics gems, you might want to read this, too.