Design of Q-shift filters with improved vanishing moments for DTCWT

Q-shift filters have been used in the Dual Tree Complex Wavelet Transform (DTCWT), and are required to have a well-controlled group delay. This paper proposes a new method for designing Q-shift filters with improved vanishing moments. The proposed design method allows the flatness condition of the group delay response to be included along with the vanishing… CONTINUE READING