查询词典 projection line

The projection angle of two B-edges of pentagonal prism has a great effect on the second optical parallelism; however, it cannot be measured during on line processing, which results in low qualification rate.

由于五角棱镜两B棱的投影夹角对第二光学平行差影响倍率较大且加工过程中无法测量该夹角，从而导致棱镜加工合格率较低。

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

Convert relationship of prototype robot joint angle and equivalent model joint angle is presented based on the method of kinematics inverse solution. The Jacobian algorithm of redundant robot for achieving effective joint excursion is studied, which is fit for digital calculating. The grads projection algorithm of redundant robot multi optimizing capability function's proportion factor is deduced. The issues of apery arm robot singularity and joint self-movement are researched. The simulation experiment result of apery arm joint self-movement and line movement is presented.

因为七自由度拟人手臂机器人的建模比较困难，采用了在等效模型下求解其运动学逆解的方法，给出了原机器人机构关节角与等效模型关节角之间的转换关系；提出了一种适于数值计算的有效的求解有关节偏置的冗余度机器人Jacobian的算法，并在此基础上推导了冗余度机器人多优化性能指标函数的均衡比例因子梯度投影算法；研究了拟人手臂机器人的奇异问题和关节自运动问题；给出了拟人手臂进行关节自运动和进行直线轨迹跟踪的仿真实验结果。

The surface projection of the lowest branch was located on the line from above two digits.

Jacobs等[3 ](1989)报道了在 10具标本上对手术入路中臀上神经的解剖定位结果。

This paper introduces the drawing method of utilizing center projection to make the common position and the declined intersecting line of the declined cone .

介绍了用投影法求作一般位置平面与斜锥体的截交线的作图方法，供同行参考。

Traditional photogrammetry was based on forward intersection and resection using survey point, so collinear equation （object point, image point and center of projection lie in a line） was the kernel of the whole photogrammetry, and relative orientation and absolute orientation were based on ideology of coplanar corresponding image point.

传统摄影测量是基于测点的前方交会和后方交会，所以共线方程（即物点、像点与摄影中心位于一条直线上）是整个摄影测量的核心。

By analytic geometry method and solving quadratic equation,a computer simulation algorithm of digital projection under arbitrary scanning locus was proposed.The algorithm is based on the rules of attenuation of monochromatic X-rays.Through mathematical modeling and computer simulation,digital projections of ellipsoid and cylinder in circular and helix scanning modes are exemplified respectively,which are proved to be correct by FDK and PI-line reconstruction algorithms.

介绍了一种利用解析几何和求解二次方程仿真任意扫描轨迹下的锥束射线投影数据算法，该方法基于单色射线贯穿物体的衰减理论，通过数学建模与计算机仿真，给出了椭球、圆柱两种典型模型分别在单圆、螺旋线扫描轨迹下的投影数据仿真结果，并利用FDK和PI线重建算法进行验证，证明了该种数值仿真方法的正确性。

The cylinder boxes for the subassemblies of each instrument are set up, and the early warning algorithm for collision of the instruments based on the projection plane is proposed according to the theory that the axes of the two boxes have the common perpendicular line.

建立了机器人手术器械组件的圆柱体包装盒，根据两个圆柱体包装盒的轴线段所在直线必定存在公垂线的原理，提出了基于投影面的机器人手术器械碰撞预警算法。

B A new method for describing the projection of a line in an omni-image as a conic section is proposed.

b我们提出了一个利用圆锥曲线来描述环场影像中的直线投影的新方法。

Rytz Method ; maximum oblique line ; Right-angled Triangle Method ; plane figure ; projection plane ; dip angle ; conjugate diameter

里茨作图法；最大斜度线；直角三角形法；平面图形投影面；倾角；共轭直径

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。