Title :
The design and application of four-tap wavelet filters
Author :
Kiernan, M.J. ; Linnett, L.M. ; Clarke, R.J.
Author_Institution :
Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK
Abstract :
The design of a simple four-tap filter is considered. The simplest four-tap low-pass filter, the four term averager, has the coefficients 1/2, 1/2, 1/2, 1/2. Chosen for their simplicity and also because the low-pass filter is then orthogonal to its complementary highpass filter. This general design allows the properties of the magnitude and phase responses to be readily determined
Keywords :
digital filters; low-pass filters; wavelet transforms; design; four term averager; four-tap wavelet filters; low-pass filter; magnitude response; phase response;
Conference_Titel :
Applications of Wavelet Transforms in Image Processing, IEE Colloquium on
Conference_Location :
London
