“…[7,8,20,26,37] and references therein. This is in part motivated by applications to signal and image processing of generalized wavelet systems such as -modulation frames, see [6,15,16,29,38], and Shearlet type systems, see [7,[24][25][26]. The second generation curvelet systems are generally based on modified decompositions of the frequency domain as compared to the classical dyadic decompositions.…”