Title :
Interpolation of 2-D signals
Author :
Sathyanarayana, P. ; Reddy, P.S. ; Swamy, M.N.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
fDate :
5/1/1990 12:00:00 AM
Abstract :
A method based on the fast Fourier transform (FFT) is presented to estimate the values of signal samples between any two consecutive samples of an already sampled 2-D band-limited continuous signal. In other words, the effect is as if one increased sampling rate and obtained new samples at the higher rate. This will be useful when storing or transmitting an image sampled at a lower rate and reconstructing it later with better quality
Keywords :
fast Fourier transforms; interpolation; picture processing; signal processing; 2-D signals; band-limited continuous signal; fast Fourier transform; image reconstruction; image storage; image transmission; interpolation; sampling rate; signal samples; Fast Fourier transforms; Fourier transforms; Image reconstruction; Image sampling; Image storage; Interpolation; Parameter estimation; Sampling methods; Signal sampling; Speech processing;
Journal_Title :
Circuits and Systems, IEEE Transactions on
