查询词典 ridgelet

Based on a localization principle and subband decomposition, monoscale ridgelet and curvelet were proposed, both of which were derived from ridgelet transform and can efficiently deal with smooth images with smooth edges including straight and curve singularity. They, hence, are of better application potention. sparse representation;optimal basis;ridgelet;curvelet;image denoising;non-parametric estimation

单尺度脊波和Curvelet变换由脊波变换发展而来，分别利用了函数局部化和频带剖分的思想，将脊波理论发展到了一个更高的阶段，这两种变换都能"近似最优"的表示直线和曲线奇异，因而具有更好的应用前景。

In this paper, a new image de-noising method is proposed by using the threshold method based on nonparametric adaptive estimation which is presented by Birge-Massart in Ridgelet domain.

该文在有限Ridgelet域中，结合Birge-Massart等提出的非参数自适应估计理论，提出一种新的二维图像去噪方法。

One kind of Modified Orthonormal Finite Ridgelet Transform was brought forward.

提出了一种改进型正交有限脊波分析的图像去噪算法。

Because finite ridgelet transform brings"wrap-around"effect, wiener filter is used for reducing its influence in the paper and a better result is gotten.But it is one of author's next work how more availably to reduce the"wrap-around"effect.

由于有限脊波变换存在"折叠"效应这一明显缺陷，本文采取了维纳滤波的办法取得了一定的效果，但是如何更加有效地消除它的影响是笔者下一步要做的工作之一。

Firstly, the definition of image representation, measure of sparsity, and the basic methods of sparse representation are reviewed. And then, we analyze the performance of nonlinear approximation of Ridgelet, Curvelet, Contourlet and Bandelet transform.

论文阐述了信号表示的定义、稀疏性度量以及图像稀疏表示的基本理论方法，分析与比较了脊波变换、曲线波变换、Contourlet变换、Bandelet变换各自的非线性逼近性能。

Six new theories in Multi-scale Geometric Analysis are introduced in this paper from theory and application, which are Beamlet transform, Wedgelet transform, Ridgelet transform, Curvelet transform, Contourlet transform and Bandelet transform.

本文从理论和应用两个方面分别介绍了多尺度几何分析理论中的Beamlet transform、Wedgelet transform、Ridgelet transform、Curvelet transform、Contourlet transform和Bandelet transform。

The problems of redundant dictionary construction in overcomplete sparse representation are studied. A method of multiscale Ridgelet dictionary construction is proposed.

2对超完备图像稀疏表示中冗余字典的构造问题进行研究，提出了冗余多尺度脊波字典的构造方法。

The third chapter in the paper, the ridgelet transform based image fusion is presented.

论文第三章介绍了基于脊波变换的图像融合方法。

At last, a new shift-invariant de-noising method using finite ridgelet transform is proposed in this article.

最后在该算法的基础上提出了一种基于FRIT变换的平移不变去噪算法。

Since ridgelet is proposed,the problem is solved well.

随着脊波的出现，这个问题便得到了很好的解决。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。