A Novel Edge Detector Based on Nonlinear Local Operations. - George Economou; Spiros Fotopoulos; M. Vemis (ISCAS, 1994)

The use of Boolean functions and local operations for edge detection in images. - M. Vemis; George Economou; Spiros Fotopoulos; A. Khodyrev (Signal Process., 1995)

A family of nonlinear filters with data dependent coefficients. - George Economou; Spiros Fotopoulos; M. Vemis (IEEE Trans. Signal Process., 1995)