Reza Safaee-Rad, Kenneth C. Smith, Beno Benhabib, Ivo Tchoukanov. Application of moment and Fourier descriptors to the accurate estimation of elliptical shape parameters. In 1991 International Conference on Acoustics, Speech, and Signal Processing, ICASSP '91, Toronto, Ontario, Canada, May 14-17, 1991. pages 2465-2468, IEEE Computer Society, 1991. [doi]