This paper presents two new 3D curvelet transforms which are built as extensions of the 2D first generation curvelet transform. The first one, called the RidCurvelet, is especially well designed for representing 2D surfaces in a 3D space while th

基于curvelet的Stein无偏风险估计图象去噪（清华学报自然科学版已接受稿件）-Curvelet-based Stein unbiased risk estimation for image denoising (Tsinghua University Natural Science Edition has accepted manuscr ipt)