1) dual-tree complex wavelet
双树复数小波
1.
Dual-Tree Complex Wavelet Based Denoising for Diffusion Tensor Estimation;
基于双树复数小波降噪的扩散张量估计
2.
Based on DTCWT(dual-tree complex wavelet transform),a ratio of high-pass band and low-pass band norms is defined as a measure of image focus.
该方法基于双树复数小波变换,定义高频带与低频带2-范数的比值作为图像清晰度的判定准则。
2) dual-tree complex wavelet
双树复小波
1.
Image mosaic algorithm based on dual-tree complex wavelet;
基于双树复小波的图像镶嵌算法
2.
So a line selection method based on dual-tree complex wavelet which possesses the characteristics of shift invariant is proposed,as a result,the uncertainty of real wavelet analysis results can be avoided.
过补偿情况下,在对小电流接地故障特征详细分析的基础上,发现故障线路与正常线路存在着衰减电流的差别,此差别电流反映在复小波变换相位上体现为相位的延迟,据此,通过采用具有时移不变性的双树复小波构造相位选线算法从而避免了实小波分解结果的不确定性,另外也对过补偿情况下相位选线失效的问题提出了一个新的解决方案。
3.
By the Hilbert transform pair filters dual-tree complex wavelet transform is achieved to overcome the translation-invariance deficiency of the discrete wavelet transform.
为克服离散小波变换平移不变性差的不足,通过构造的Hilbert变换对滤波器组,实现了双树复小波变换。
3) Dual-tree complex wavelet transform
双树复小波
1.
Image fusion via dual-tree complex wavelet transform based on directional contrast and local variation
基于方向对比度和局部方差的双树复小波图像融合算法
4) DT-CWT
双树复小波
1.
To achieve the copyright protection of digital image, an image watermarking scheme based on DT-CWT(dual tree complex wavelet transform) resisting geometrical attacks is proposed.
为了实现数字图像的版权保护,设计了一种基于双树复小波变换的抗几何攻击的数字水印算法:对水印图像进行三级双树复小波变换,提取特征并插值为特征矩阵,并且定义了一种新的距离向量用于相似性度量,使用特征矩阵对遭受几何攻击的图像进行参数估计。
5) dual-tree complex wavelet transform
双树复数小波变换
1.
In order to de-noise and get edges of chip, a method based on dual-tree complex wavelet transform threshold is described in this paper.
为了提高切屑图像的去噪能力 ,提出了一种采用双树复数小波变换进行切屑图像去噪的方法 ,即在原信号 (噪声标准方差 )未知情况下 ,采用GCV准则选取去噪阈值 ,双树复数小波变换进行去噪。
2.
Then SAR image de-noising modal based on BSF and dual-tree complex wavelet transform (DT-CWT) was constructed and reduced.
在SAR图像斑点噪声服从瑞利分布的假设下,结合双树复数小波变换推导了基于二元收缩方程的SAR图像的简化去噪模型,然后利用局部方差估计和维纳滤波器获得噪声方差与带噪小波系数方差的估计值,并计算出合适阈值对SAR图像进行去噪。
3.
We use dual-tree complex wavelet transform to decompose and reconstruct an image.
采用双树复数小波变换对图像进行分解与重构,在BayesShrink阈值去噪的基础上,提出了基于小波系数层内和层间局域特性的自适应阈值去噪算法;构造出具有层内和层间局域特性的统计量和相应的映射,产生新的BayesShrink阈值。
6) 2D Dual-Tree Complex Wavelet Transform
二维双树复数小波变换
1.
Image Denoising based on 2D Dual-Tree Complex Wavelet Transform;
基于二维双树复数小波变换的图像去噪
补充资料：波利树法门
【波利树法门】
（术语）涅槃经三十二引忉利天宫之波利质多树以喻菩萨出家受具足戒，乃至具足诸行得大般涅槃之功德也。
（术语）涅槃经三十二引忉利天宫之波利质多树以喻菩萨出家受具足戒，乃至具足诸行得大般涅槃之功德也。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条