1) directional wavelet transform along (45 degree) and 135 degree
45°、135°方向小波变换
2) directional wavelet transform
方向小波变换
1.
For the weak wakes detection in remote sensing image,a new algorithm for wake detection based on directional wavelet translform is proposed,and the difference of wake detectin between traditional and directional wavelet transform is compared.
针对遥感图像中的弱尾迹检测,提出了一种基于方向小波变换的尾迹检测新算法,并且比较了方向小波和传统的小波变换在检测尾迹中的不同之处。
2.
It is composed of pre-processing,directional filterbank and optimized directional wavelet transform.
提出了一种新颖的图像多尺度几何变换方法,主要由预处理、方向滤波器组和最优方向小波变换等组成。
3.
Firstly,directional wavelet transform was adopted to obtain the edge map with exact localization,unabridged edges and less redundancy information;Then scanning the edge map twice,and extracting the straight lines using the improved Hough Transform.
首先,将方向小波变换用于目标的边缘检测,得到定位准确、边缘完整、冗余信息少的边缘图;然后两次遍历该图,改进Hough变换在提取直线段的同时,获得直线段端点坐标,精确定位出跑道位置。
4) Directional DWT
方向离散小波变换
1.
Directional DCT and Directional DWT and Their Application in Ultrasound Images;
方向离散余弦变换和方向离散小波变换及其在超声图像中的应用
5) directional extension for wavelets
方向延拓小波变换
6) multi wavelet transform
向量小波变换
1.
By considering a small target as gray level signal singularity with a relatively continuous area in 2 dimensional images, we take advantage of multi wavelet transform to enhance target and suppress background clutter and present a “from coarse to fine” small target detection and segmentation scheme.
将小目标考虑为二维图像中具有相对连续小块区域的灰度信号突变 ,用向量小波变换来增强目标 ,抑制噪声 ,从而提出了一种由粗到精的小目标检测和分割方法 。
补充资料：也波
1.衬词。无义。
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