Title :
Interpolation using Hartley transform
Author :
Liu, D. ; Wang, D. ; Wang, Z.
Author_Institution :
Beijing Univ. of Posts & Telecomm., China
Abstract :
The revised interpolation method for a 1-D signal via the fast Hartley transform (FHT) is presented and a new interpolation algorithm for a 2-D signal by using the 1-D FHT is suggested. Results show that the proposed algorithm is superior to the FFT method both in accuracy and in computational time for interpolating discrete bandlimited 2-D signals.
Keywords :
interpolation; picture processing; transforms; 2D signal; FFT method; FHT; discrete bandlimited signals; fast Hartley transform; interpolation algorithm; revised interpolation method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920130
