Hugin's source package also contains the following (slightly modified) libraries. The improvements have been contributed back to the upstream developers, if possible. Hugin would not have been possible without them. Many thanks.

levmar by Manolis Lourakis http://www.ics.forth.gr/~lourakis/levmar
FLANN by Marius Muja and David G. Lowe, http://www.cs.ubc.ca/~mariusm/index.php/FLANN/FLANN (used unmodified)

The camera response estimation uses the EMoR response model developed at the Computer Vision Laboratory of the Columbia University. "Modeling the Space of Camera Response Functions," M.D. Grossberg and S.K. Nayar, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol.26, No.10, pp.1272-1282, Oct, 2004.

Hugin would not be what it is without the following packages:

Libpano is critically important for Hugin. Many thanks to its original developers Helmut Dersch, Rik Littlefield, Jim Watters, Fulvio Seniore, Max Lyons, Bruno Postle, and to those who continue their tradition. http://panotools.sourceforge.net/

Enblend-Enfuse originally by Andrew Mihal http://enblend.sourceforge.net/

VIGRA by Ullrich Koethe: http://ukoethe.github.io/vigra/

FFTW by Matteo Frigo and Steven G. Johnson: http://www.fftw.org

Exiv2 by Andreas Huggel: http://exiv2.org/

Exiftool by Phil Harvey: http://owl.phy.queensu.ca/~phil/exiftool/

OpenGL Extension Wrangler Library (GLEW): http://glew.sourceforge.net/

SQLite: http://www.sqlite.org/

Little CMS2 by Marti Maria: http://www.littlecms.com/

Many thanks to the whole Hugin-PTX mailing list, for great feedback and interesting discussions.

Last but not least, many thanks to Nils Lagerkvist for suggesting the program name, Hugin.