1)projection index投影指标
1.As one of its application, the classification model associated with a simple projection index has been built for assessing water quality.在一个简单投影指标下，用新的优化途径建立了多元数据分类模型，并将其用于多指标的标准水质分类。
2.Secondly,a new projection index based on dynamic cluster rule is constructed in the PPDC model,which would finish the sample clustering based on the projected characteristic value.首先,利用投影技术将多因素(高维)问题投影到一维线性空间,以达到在一维空间研究高维数据的目标;其次,以动态聚类方法构造新的投影指标,对投影到线性空间的反映高维数据结构或特征的投影特征值序列进行聚类分析,进而完成多因素样本聚类分析。
3.Secondly,a new projection index on the basis of dynamic cluster rule is constructed,which avoids the problem of parameter ca.以投影寻踪理论为基础,利用动态聚类方法构建投影指标,建立了水资源评价的投影寻踪动态聚类模型。
2)bidding parameters投标指标
1.The construction firms participating ina competitive bid select various bidding parameters of importance in determining a bidprice and then establish utility functions for each parameters selected.参与投标的施工企业对以前的投标数据作概率统计，并为所选的投标指标建立效用函数，将正在投标的新项目的数据与过去的经验数据全面对照，经数据处理后计算出最高的期望标价从而达到既能中标又能最大限度地提高标价的目的。
3)projection with heights标高投影
4)projective calibration target投影标靶
1.A method of hand-eye camera calibration based on projective calibration target;一种基于投影标靶的手眼相机标定方法
5)Standard projection标准投影
6)Projected coordinate投影坐标
英文短句/例句
1.Object-Space Back Project Coordinates Calculation Algorithm for ADS40 Imageries一种ADS40影像物方反投影坐标计算的快速算法
2.Measurement Method of X-ray Focus Projection Coordinates of Three-Dimensional Micro-Computerized Tomography Scanning System三维显微CT扫描系统的X射线源焦点投影坐标测量方法
3.Gauss Plane Coordinate s Influence by Change of Ellipsoidal and Projective Parameter;椭球、投影参数变化对高斯平面坐标的影响
4.DESIGN OF A GRIDPOINT MODEL WITH VARIABLE RESOLUTION IN CONFORMAL PROJECTION CARTESIAN COORDINATES一个地图投影直角坐标变网格差分模式的设计
5.THE CONDITIONS FOR PROJECTIVE EQUATIONS TO USE CARTESIAN RIGHT-ANGLE COORDINATE SYSTEM投影方程组使用笛卡尔直角坐标系的条件
6.Method for the Data Rectification of the Coordinate Projection and Zone Exchange Parameters Entry Error坐标换带投影参数录入错误的数据纠正方法
7.Grid Technology of Doppler Radar Data Based on Polar Coordinates Projection基于极坐标投影的多谱勒雷达数据栅格化技术
8.Vertical Tilt Correction for Vehicle License Plate Based on Minimizing Variance of Coordinates of Projection Points投影点坐标方差最小化车牌垂直倾斜校正
9.The Research of the Transformation Among Different Coordinate Systems and Projections of Digital Map Based on DXF File基于DXF的数字地图投影与坐标系转换方法研究
10.Area error caused by different data and projection surface in tableland高原地区不同坐标系及投影面引起的面积误差
11.They are commonly used in map projections, polar projection, Mercator's projection Lambert conformal conic projection are three of them.导出在极射赤面投影、卡托圆柱投影和兰勃脱正形圆锥投影等算法中确定位置坐标的精确公式。
12.At any point the convergence is the angle between the meridian as represented on the plane and the N grid line.一点上的收敛角是子午线在平面上的投影与N坐标线之间的角度。
13.Coordinate Projection Method s Computerization and Its Application to Stability Analysis of the Structural Plane and Block;坐标投影作图法的计算机化及其在结构面和块体稳定分析中应用
14.Two-mode integral form projection operator and its application in quantum optics双模坐标-动量积分型投影算符及其在量子光学中的应用
15.areal coordinates重心坐标, 面坐标
16.conic projection with two standard parallels双标准纬线圆锥投影
17.Effect of Scientifically Writing of Bidding Document upon Bidding Rate Improvement;科学编写投标文件对投标中标率影响的分析
18.The dynamics of co-ordinate measuring machines(CMMs)三坐标测量机动态性能对扫描的影响
相关短句/例句
bidding parameters投标指标
1.The construction firms participating ina competitive bid select various bidding parameters of importance in determining a bidprice and then establish utility functions for each parameters selected.参与投标的施工企业对以前的投标数据作概率统计，并为所选的投标指标建立效用函数，将正在投标的新项目的数据与过去的经验数据全面对照，经数据处理后计算出最高的期望标价从而达到既能中标又能最大限度地提高标价的目的。
3)projection with heights标高投影
4)projective calibration target投影标靶
1.A method of hand-eye camera calibration based on projective calibration target;一种基于投影标靶的手眼相机标定方法
5)Standard projection标准投影
6)Projected coordinate投影坐标
延伸阅读
滤波反投影或卷积反投影滤波反投影或卷积反投影 影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中，无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution)，即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正，然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单，速度快，所得图像逼真、清晰。
