Title :
Nonlinear digital filters for image restoration using Volterra series
Author :
Yoshida, Hiroshi ; Atsuta, Kiyoaki ; Kondo, Shozo
Author_Institution :
Fac. of Eng., Tokai Univ., Kanagawa, Japan
Abstract :
In this paper, we propose new nonlinear digital filters for image processing which are represented by discrete Volterra series. Firstly a design theory of nonlinear filters is formulated as an identification problem of unknown filters using pairs of input and output images of the filters. Secondly a nonlinear filter for image restoration is designed as an example of the proposed design method. Finally the designed filter is used to restore another image degraded in the same manner. It supports that the proposed design method is quite efficient
Keywords :
Volterra series; digital filters; filtering theory; image restoration; nonlinear filters; discrete Volterra series; identification problem; image restoration; input images; nonlinear digital filters; output images; Degradation; Design methodology; Digital filters; Filtering theory; Image processing; Image restoration; Nonlinear filters; Process design;
Conference_Titel :
Circuits and Systems, 1994. APCCAS '94., 1994 IEEE Asia-Pacific Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2440-4
DOI :
10.1109/APCCAS.1994.514630
