Optimum linear approximation of the Euclidean norm to speed up vector median filtering. - Mauro Barni; Franco Bartolini; Fabio Buti; Vito Cappellini (ICIP, 1995)

A quasi-Euclidean norm to speed up vector median filtering. - Mauro Barni; Fabio Buti; Franco Bartolini; Vito Cappellini (IEEE Trans. Image Process., 2000)