而后对地面的卫星照片作了光学方向滤波。
Then, optical directional filtering for the satellite-photograph is performed.
新的方向滤波器组具有良好的方向和频率选择性。
The new DFB can provide good directional and frequency selectivity.
采用方向滤波编码法压缩数字化天气雷达回波的原始资料。
In this paper, the directional filtering method is used for compressing the primitive data of the digital weather radar echoes.
人们相继提出了许多基于方向滤波器组的几何图像变换方法。
Recently, some geometrical image transforms based on the DFB have been introduced.
构造了由非抽样塔式分解和方向滤波器组实现的冗余轮廓波变换。
The redundant contourlet transform implemented by undecimated pyramidal decomposition and directional filter bank is proposed.
根据重磁场频谱的这一方向特性，可以设计出各种各样的方向滤波器。
Various directional filters can be designed according to the directional characteristic of the frequency spectra of gravitational and magnetic fields.
算法中使用了重叠运动补偿和方向滤波联合处理的方法，操作简捷，移植性好。
Our algorithm has made the joint USES of overlapped motion compensation and directional filtering techniques, with the advantages of simple operation and good portability.
利用二维傅里叶变换进行方向滤波，较好地消除了南极地区影像上的条带噪声。
This paper presents a method that can remove streaking noise better by means of direction filtering based on two dimension Fourier transform.
本文从最大能量准则出发，得到了一种用于方向滤波和方向增强的平滑滤波器。
This paper has proposed a optimal smoothing filter for directional filtering and image restoration, based on the maximum energy criterion.
这里提出了一种新的静态校正方法—方向滤波法，并具体阐述了方向滤波算法的设计思想。
In this paper a new method called orientation filter is presented for the static correction.
实验表明，在不同的分解级，金字塔复方向滤波器组的每个子带系数也都是符合GGD模型的。
The experiments show that the coefficients of PDTDFB transform is accorded with the GGD model at different decomposition level.
所做工作主要有两方面：一是矢量量化编码中的格型矢量量化，另一个是梅花型方向滤波器的提升实现。
The work can be mainly divided into two aspects: lattice vector quantization in vector quantization coding for images and the lifting realization of the quincunx directional filter banks.
先得到指纹图像的连续方向图，再根据此方向图设计方向滤波模板进行滤波，最后得到指纹的二值化图像。
Firstly gain the continuously directional image of the fingerprint, secondly design orientation template using the directional image and filter the fingerprint image, lastly obtain the binary image.
针对采集到的指纹库中存在指纹过湿，以及存在高频噪声的问题，提出了一种基于小波分析的方向滤波算法。
There exist some wet and high-frequency noise fingerprint in large fingerprint databases. A low quality fingerprint enhanced algorithm was designed in wavelet domain.
在设计方向滤波器时，对滤波器的旋转引入了方—圆变换的方法，进而减少了计算的复杂度，同时避免引入误差。
While designing orientation filter, we introduced the square-circle transform to rotate filter, thus we reduced computing complexity and avoided imported errors.
指纹预处理一般包括以下几个步骤：图像质量评估、均值滤波、灰度归一化、灰度均衡化、方向滤波、二值化以及细线化。
Image preprocessing is usually consisted of following steps: quality assessment, mean filtering, gray normalization, gray equalization, the Oriental filtering, binarization as well as thinning.
由于周期性纹理的纹元是以周期为单位的纹理块，该文试图对周期性纹理图像进行方向滤波后找出纹理的周期，然后以周期尺度为采样块的大小和采样间距，进行纹理合成。
Because the texel of periodic texture is the patch with the textures period, here try to calculate the period by direction filter, and then synthesize the periodic texture by sampling with the period.
在大量样本分析的基础上 ，根据指纹纹理频率参数的变化动态调整方向滤波模板的大小对指纹图像进行有效的增强处理 ，对不同的纹理方向专门采用了查表的方法 ，减小了时间消耗。
According to the characteristics of fingerprints, the proposed algorithm also designs a group of oriented filters, and then manipulates them to filter the image depending on the orientation of the.
指纹预处理一般包括规格化、方向图计算、图像分割、滤波、二值化等环节，该文系统地讨论了各环节的有效算法。
The preprocessing in an automatic fingerprint identification system usually includes five steps: normalization, directional graph computation, image segmentation, filtering and binarization.
它是采用空间滤波技术，通过辅助通道在干扰方向上形成波束图的零点来实现对干扰信号的抑制。
Beam pattern null in the direction of the jamming is formed by a space filtering and assisted receive channels to suppress the jamming.
它采用空间滤波技术，通过辅助接收通道在干扰方向形成波束图的零点，实现对干扰信号的抑制。
Beam pattern null in the direction of jamming is formed by space filtering and assisted receive channels to suppress the jamming.
介绍一种基于离散傅里叶变换(DFT)的全方向M型超声心动图运动曲线频域滤波技术。
The paper presents a method of motion curve frequency domain filtering in Omni-directional M-mode echocardiography images based on Discrete Fourier Transform (DFT).
现基于小目标检测的现状和最新进展，从空间滤波和时间滤波的角度对现有的小目标检测技术进行了简单的概述，并分析了今后的研究方向。
Part algorithms of infrared small target detection in the way of spatial filter and time filter are introduced in this paper, based on present and recent technology.
针对这一问题，本文提出了一种基于方向梯度的图像滤波算法。
In allusion to this question, in this paper, we proposed a method of image filter based on direction gradient.
为了快速提取LIDAR点云中的地面点，生成高精度的DTM，提出了一种基于多分辨率方向预测的LIDAR点云滤波方法。
For extracting ground points from LIDAR points clouds quickly and generating high accurate DTMs effectively, a filtering method based on multi-resolution directional prediction is proposed.
此项技术利用了沿地层形成的低相干带和由断层产生的低相干带方向上的差别，通过局部方向扫描和多项式滤波来滤除不需要的低相干带和随机噪声带来的干扰。
Along horizon LCS and differences in directions of LCSs resulted from faults are used to suppress the undesired LCS and random noise through local dip scanning and polynomial filtering.
提出并构建了八方向平滑和增强滤波器。
The eight-direction smoothing and enhancing filter are also proposed.
首次提出了TMA方向的分段滤波法，对TMA方法的研究具有重要理论意义。
We present Segment Filter method first time. It has important theory meaning in TMA researching.
首次提出了TMA方向的分段滤波法，对TMA方法的研究具有重要理论意义。
We present Segment Filter method first time. It has important theory meaning in TMA researching.
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