Curvelets Homepage
网页The Curvelet transform is a higher dimensional generalization of the Wavelet transform designed to represent images at different scales and different angles. Curvelets enjoy two unique mathematical properties, namely:
Curvelet - Wikipedia
网页Curvelets are a non- adaptive technique for multi-scale object representation. Being an extension of the wavelet concept, they are becoming popular in similar fields, namely in image processing and scientific computing. Wavelets generalize the Fourier transform by using a basis that represents both location and spatial frequency.
多尺度几何分析（Ridgelet、Curvelet、Contourlet、Bandelet、We…
网页第一代Curvelet变换实质上由Ridgelet理论衍生而来，是基于Ridgelet变换理论、多尺度Ridgelet变换理论和带通滤波器理论的一种变换。 单尺度脊波变换的基本尺度是固定的，而Curvelet变换则不然，其在所有可能的尺度上进行分解，实际上Curvelet变换是由一种特殊的滤波过程和多尺度脊波变换 (Multiscale Ridgelet Transform)组合而成：首先对图像进行子带分解；然后对不同尺度的子带图像采用不同大小的分块；最后对每个分块进行Ridgelet分 …
曲波变换 - 维基百科，自由的百科全书
网页曲波变换（英語： Curvelet Transform ）是一种可以对多尺度信号进行表示的非自适应方法。 作为 小波变换 的推广，曲波变换目前广泛的应用于诸如图像处理和科学计算等领域。
Curvelet变换及其Matlab实现 - 知乎 - 知乎专栏
网页Curvelet变换是一种多尺度的几何变换，可以有效表征不同角度的边、曲线等. 与Fourier变换类似，Curvelet变换本质上是设立一组基底，求解空域图像在这组基底上的相关值，这些相关值构成了这个图像在Curvelet基底上的表达.
Software - Curvelet
网页Software. CurveLab is a toolbox implementing the Fast Discrete Curvelet Transform, both in Matlab and C++. The latest version is 2.1.2. The paper Fast Discrete Curvelet Transforms explains the curvelet transforms in detail.
网页The curvelet transform is a multiscale directional transform which allows an almost optimal nonadaptive sparse representation of objects with edges. It has generated increasing interest in the community of applied mathematics and signal pro-cessing over the past years.
Curvelet Gallery
网页Curvelets at work. We start with a simple image of size 800 by 600, which we interpret as a matrix with entries one (black) or zero (white). This is a prototypical 'geometrical' image, expected to have an extremely sparse representation in curvelets:
网页Curvelets. A curvelet frame f' g is a wave packet frame on L2(R 2) based on second dyadic decomposition. (x) f = X ' (x) = Z. f (x) ' (x) dx. Dyadic Decomposition. Frequency shells: 2k < j j < 2k+1. Second Dyadic Decomposition. Angular Sectors: \(!; 2 k=2. Second Dyadic Decomposition. Parabolic scaling: 2 p 1. Second Dyadic Decomposition.
matlab curvelet变换图像去噪【详细解析 参考源码】 - 知乎
网页一、简介. 1 curvelet变换的提出. 2 curvelet变换的研究进展及现状. 3 第一代curvelet变换. 4 实现过程. 5 第二代 curvelet变换. 6 连续的curvelet变换. 7 离散的curvelet变换. 二、源代码.