1) projection law
投影法则
1.
Based on studying rotational inertia of a uniform rod to random rotation shaft,this paper points out projection law which is a usual calculation method for rotational inertia.
利用直接积分法计算出均匀细杆对任意轴的转动惯量,提出了一种普遍适用的转动惯量的计算方法——投影法则;将投影法则应用于均匀细杆对特殊轴的转动惯量的计算中,得到的结果与实际情况相符合。
2) projection method
投影法
1.
Measuring numerical aperture of microscope by projection method;
用投影法测量显微镜的数值孔径
2.
Two-phase optimized model for interval multi-attribute decision making based on projection method;
基于投影法的区间型多属性决策两阶段优化模型
3.
The projection method is introduced,including image collection and segmentation,edge detecting,3-D reconstruction and so on,which achieve the 3-D reconstruction of shape of rough diamond.
介绍了投影法,通过图像采集与分割、边缘提取、三维重建等步骤,实现了钻石原石形状的三维重建。
3) Projection
[英][prə'dʒekʃn] [美][prə'dʒɛkʃən]
投影法
1.
To cut out a two-dimension-line through a rectangle window with a way of projection;
用投影法实现二维线段矩形窗口的裁剪
2.
A license plate location algorithm based on the combination of edge detection and projection is put forward by means of the geometric and texture information of the license plate area.
为了提高车牌定位的实时性和有效性,利用车牌的几何特征和纹理特征,提出了基于边缘检测和投影法相结合的车牌定位算法。
3.
One was intra-modality medical image registration based on projection, the other was inter-modality medical image registration based on mutual informa.
投影法通过二值化参考图象和浮动图象，沿X轴、Y轴投影得到投影向量，然后根据投影向量元素的大小和位置，分别检测图象间旋转、平移运动的大小。
4) projection method
投影方法
1.
Approximate projection methods for incompressible flow on nonstaggerd grids;
非交错网格上不可压流动中的近似投影方法
2.
Third-order projection method for solving the incompressible Navier-Stokes equations;
求解不可压Navier-Stokes方程的三阶精度投影方法
3.
Because of the decoupling of the velocity and the pressure computation,the projection method is much more efficient than the fully coupled procedures.
在过去的20多年中,投影方法通过速度和压力的解耦计算,获碍了比全耦合方法更高的计算效率,这个显著优点使之得以广泛应用。
5) orthography
[英][ɔ:'θɔɡrəfi] [美][ɔr'θɑgrəfɪ]
正投影法
1.
Introduces seting up celestial coordinate system with orthography of descriptive geometry and machine drawing for calculating elevating and azimuth angle of the sun,sunrise & sunset time(in the Summmer Solstice of the Winter Solstice),house sunshine time and rational house construction plan.
介绍了用正投影法计算太阳的高度角和方位角、冬至和夏至日出、日落点。
2.
This paper is concerned with graphics and addition computation of vectors by using orthography, presents diagramming consideration and steps of solving space general force system composition problem by an example, proposes that drawing computerization is fundamental way for improving diagramming accuracy.
文章论述了矢量的正投影图示法以及用矢量的正投影进行加法运算,通过题例提出了正投影法图解空间一般力系合成问题的思路和步骤,指出绘图计算机化是提高图解精度的根本途径。
6) projection
[英][prə'dʒekʃn] [美][prə'dʒɛkʃən]
投影算法
1.
We present an automatic-tracking scheme of moving bojects based on projection algorithm.
提出了一种基于投影算法的运动目标自动跟踪系统设计方案。
补充资料：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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条