Title :
Maximally flat half-band diamond-shaped FIR filters using the Bernstein polynomial
Author :
Cooklev, Todor ; Yoshida, Toshiyuki ; Nishihara, Akinori
Author_Institution :
Fac. of Eng., Tokyo Inst. of Technol., Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
Two-dimensional (2-D) linear-phase diamond-shaped (DS) FIR digital filters have important image processing applications. They are used in sampling structure conversion, e.g. interlace-to-progressive conversion. Maximally flat (MF) DS filters have attractive time- and frequency-domain properties and are preferred in some applications. In this correspondence MF half-band DS FIR are designed using the two-variable Bernstein polynomial. Formulas for the transfer function and the impulse response are obtained
Keywords :
frequency response; image processing; network synthesis; polynomials; transfer functions; transient response; two-dimensional digital filters; 2D FIR digital filters; Bernstein polynomial; frequency response; image processing; impulse response; interlace-to-progressive conversion; maximally flat half-band diamond-shaped FIR filters; sampling structure conversion; transfer function; Chebyshev approximation; Circuits; Digital filters; Digital signal processing; Finite impulse response filter; Frequency response; Least squares approximation; Polynomials; Sampling methods; Signal sampling;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
