查询词典 radon seed

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。

This paper has produced the physical meaning of the water radon variation rate and the production method of the dynamic pattern of the variation rate .

介绍了水氡变化率的物理含义以及变化率动态图象的生成方法。

The GEOTOP centre develops multi-disciplinary projects such as the study of uranium-thorium-radon desequilibrium in volcanology or the study of isotopic tracers at the water-sediment interface and internal process of the earth.

此中心开展了多学科的研究项目，如火山学中铀-钍-氡消除平衡的作用研究、水沉积物分界面的同位素示踪剂研究，以及地球内部作用的研究。

Meanwhile, the approximate direction and area of waterline is obtained in the Radon domain.

实验结果验证了该算法对海岸线检测的有效性和较强的鲁棒性。

First, since the GRT is linear and addible, the dissertation proposes the parallelized implementation of Generalized Radon Transform. The implementation is based on the GRT Cartesian space's decomposition.

基于广义Radon变换具有良好的线性可加性，本文提出一种以分解图像空域笛卡尔空间为基础的广义Radon变换并行化实现，从而使得广义Radon变换能有效地运用于实际应用中。

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。

A quantitative appraisal of the prospect of uranium mineralization is completed based on a set of hydrochemical data acquired from the known in-situ leachable sandstone-type uranium, including radon content, acid-alkali ratio, oxidized and reduced electronic potential, hydrocarbonate radical and uranium content in water.

但是在找铀过程中仅用水化学成份、氡含量、酸碱度和氧化还原电位等数值进行描述，说明它们与铀矿化的关系，这种单一因素的描述不能综合反映与铀矿化的联系程度，以定量评价铀矿化与上述因素的关系，从而影响了水化学找矿的效果。

Respirable particulate matter ; radon ; carbon dioxide ; indoor air pollution

可吸入颗粒物；氡；二氧化碳；室内空气污染

Radon transformation was used to change the artifact part to sine space, and then we obtained the sinogram.

然后用雷登变换把伪影图像变换至弦空间，即得到弦图。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。