Title :
Explicit formula for improved filter sharpening polynomial
Author_Institution :
Dept. of Inf. & Commun. Eng., Univ. of Electro-Commun., Tokyo, Japan
fDate :
10/1/2000 12:00:00 AM
Abstract :
A closed-form formula for the extended amplitude change function in filter sharpening is derived. The derivation is based on the Bernstein form representation of the amplitude change function. The function was originally proposed by Hartnett and Boudreaux-Bartels (see ibid., vol.43, p.2805-10, 1995) to achieve better control on amplitude improvement and is a generalization of the Kaiser-Hamming (1977) filter sharpening function
Keywords :
filtering theory; piecewise linear techniques; piecewise polynomial techniques; signal representation; Bernstein form representation; Bernstein polynomials; Kaiser-Hamming filter sharpening function; closed-form formula; extended amplitude change function; filter sharpening; piecewise linear polynomial; Closed-form solution; Linear approximation; Nonlinear filters; Piecewise linear techniques; Polynomials; Taylor series;
Journal_Title :
Signal Processing, IEEE Transactions on
