A simple and feasible method to measure the X-ray focus projection coordinates with high accuracy is proposed.
针对实际的三维显微CT成像系统射线源焦点和探测器成像面位置不能直接测量的问题,提出了一种简单易行的射线源焦点投影坐标精确测量方法。
There are two general types: one is projection lensometers; another is eyepiece observation lensometers.
目前常用的顶焦度计有两种:一种为读数投影到影屏上,即投影式顶焦度计;另一种为目镜观察图像,即目镜观察式顶焦度计;其中投影式顶焦度计是目前普遍使用的机型。
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
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
Depth estimating algorithm and precision analysis of bifocal imaging without principal point calibrating
无标定主点坐标的双焦测距算法及精度研究
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。
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
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
The effect of the starting point coordinate deviation on GPS baseline surveying precision
起始点坐标偏差对GPS基线精度的影响
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
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
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
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
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
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
Identification of Unmarked Focus and Marked Focus;
无标记焦点和有标记焦点的确定原则
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。
The influence and analysis study of the starting point's coordinate deviation on the GPS baseline solution
起算点坐标偏差对GPS基线解的影响分析研究
autofocus radar projector
自动调焦雷达投影仪
This coordinate system is called the triad at the point.
这个坐标系叫做该点的三面形坐标系。
