Title :
Design of 2D FIR filters by the truncation of 2D DFTs of ideal responses
Author :
Fallah, S. ; Ramachandran, V.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
It is shown that by truncating the impulse response of an ideal 2D low-pass filter, the same impulse response can be realised by 2D finite impulse response (FIR) filters. However, the contours of the frequency response have to be taken into account while doing so. Two specific contours, namely rectangular and circular boundaries, are discussed in detail
Keywords :
fast Fourier transforms; frequency response; two-dimensional digital filters; 2D DFTs; circular boundaries; contours; filters; frequency response; ideal responses; impulse response; rectangular boundaries; truncation; Digital filters; Filtering; Finite impulse response filter; Fourier transforms; Frequency response; Low pass filters; Thumb; Transfer functions; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0510-8
DOI :
10.1109/MWSCAS.1992.271137
