查询词典 radon

The straight line feature of ruler symbols is obvious,thus its processing is prior to character location.Traditional Radon transform is improved based on block to realise faster and more accurate performance.

对强噪声复杂背景下的金属断口图像标定符号的定位算法的研究，先对直线特征明显的标尺符号定位，其中对Radon变换进行分块改进，使快速性和准确性有了明显改善。

Typical methods of the first class consist of predictive deconvolution, normal moveout interconversion stacking, f-k transformation, tau-p transformation, parabola Radon transformation and beamforming. They can be called as seismography method based on the geometry. The second class methods, mainly bases on elasticity undulatory theory, through simulation or reversal development method forecast multiple, and then match it with the original data.

比较典型的方法有预测反褶积、正常时差变换叠加、f-k变换、τ-p变换、抛物线 Radon 变换和聚束滤波等，它们可以简称为基于几何地震学方法或"几何滤波类方法"；第二类主要是基于弹性波动理论的方法，通过模拟或反演方法来预测原始数据中多次波，继而从原始数据中匹配减去所预测的多次波。

The singular values of the project can be used as the character vector. The singular values of the scaling invariant can be obtained by the statistical characteristics of Radon transform. Since the singular values of the matrix are uncorrelated with the position of the column or the row of the matrix. In this way, the character vector of singular values with shift, scaling and rotational invariant is arrived at by this algorithm.

针对各颜色分量，利用Radon变换的奇异值的统计特性提取了具有尺度不变性的奇异值，由于矩阵的奇异值分解具有旋转不变性，因此该奇异值为平移、尺度和旋转不变的特征向量。

In this paper, a signal detection method based on Spectrogram and binary integration in Radon transform parameter space is proposed. By using this method, stro...

本文提出了基于谱图-Radon变换二值积累的方法，这种方法可以有效的检测出被强信号平台掩盖的弱信号，具有较大的实用价值，仿真实验结果表明这种算法是有效的。

Company's main products are: Monet Series fiber optic transmission equipment, Vango2000 series of integrated access devices, iV2060 series of green access equipment, Picasso series VDI3600 comprehensive Fuyongshebei, Radon series MG6000 media gateway and Surat series wireless terminal products, all products are Independent intellectual property rights.

公司主要产品有：Monet系列光纤传输设备、Vango2000系列综合接入设备、iV2060系列专线接入设备、Picasso系列VDI3600综合复用设备、Radon系列MG6000媒体网关和Surat系列无线终端产品，所有产品具有自主知识产权。

From the properties of Radon transform, the translation and rotation invariant is derived from the polar Fourier transform.

根据Radon变换的属性，可以从极傅立叶变换推导出一种旋转和平移不变量。

Further, by directly utilizing the radon transform to extract the slopes, the rotation rate estimation is completely based on the unscaled ISAR image, and therefore is more practicable in practice.

进一步通过直接采用Radon变换提取图像中目标的特征线斜率，使转速估计完全基于目标的ISAR图像，在实际中更为实用。

A method is proposed that is based on template match and Radon transform of calculating the affined factors in digital watermarking against geometrical distortion.

针对目前数字水印抗几何攻击方法，提出一种基于模板匹配和Radon变换联合应用的几何变换参数估计方法。

In order to overcome the deficiency of radar linear frequency-modulated signal detection and estimation, a method based on Gabor-Radon transformation was proposed.

针对通常利用的匹配滤波法对低信噪比雷达LFM（linear frequency-modulated）进行信号检测和估计的不足，提出一种联合Gabor-Radon变换方法。

First, It estimates the frequency-modulated coefficients by performing Radon transform to the ambiguity function result of the LFMs.

首先，通过对信号模糊函数进行Radon变换获得各分量的调频系数。然后用滤除单分量自项二次项的方法使信号成为普通的正弦信号。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。