Characteristic points can be extracted by considering the geometry definition, the position and curvature of each point on the contours.
然后根据特征点的几何定义，利用轮廓线的位置、曲率等信息自动提取特征点。
Lastly, the characteristic points can be extracted by the geometry definition of them and the position and curvature of each point on the contours.
根据特征点的几何定义，利用轮廓线的位置信息、曲率等属性来提取特征点。
In this paper, analytic geometry is drawn into drilling hole position calculation and have the aid of computer, the calculation is accurate.
本文引入解析几何，借助计算机对钻孔位置进行较精确计算。
It put forward an effective new method to resolve the inverse position by using the conversion of coordinates and projection in analytic geometry, the method was simulated and verified by MATLAB.
运用解析几何中的坐标变换和投影，得出一种有效求解位置反解的新方法，通过MATLAB软件对该方法进行了仿真和验证。
The coordinate value in NC machining process is related to predetermine position, size, geometry shape of the processing workpiece of the machining.
数控加工程序中的坐标值，关系着机床上加工工件的位置、尺寸和几何形状等，是数控加工程序中的重要内容。
Then, the effects of radar beacon position, cluster geometry and satellite altitude on the geometry dilution of precision factor are analyzed.
进一步分析了雷达辐射源位置、星座几何形状和星座的卫星高度对几何精度衰减因子的影响。
In this paper, a mathematic relationship between space position of gage surface and bit size, and other design parameters is derived on the basis of geometry of cone bit.
本文从新的几何关系出发，推导了牙轮背锥规径圆空间位置与钻头直径及其它设计参数的数学关系。
One of difficulties in descriptive geometry theories is to draw the intersection created by two general position intersecting quadric surfaces.
画法几何学中的难点之一是求解两一般位置二次曲面的交线。
The geometry characters of the parts and localizer are considered in adjusting schemes of fixture in order to accurately position.
为了准确定位，夹具调节方案既考虑到零件的几何特征，又考虑到定位器定位区域周围的几何特征。
The experimental result shows the method can commendably reduce the geometry and position differences of the infrared and visible light images.
实验结果表明，此方法可以很好地消除红外和可见光图像之间的差异。
The received surface displacements, in response to an applied dynamic excitation, are used to determine the position and geometry of embedded cracks based on a reverse elastic wave method.
基于弹性波的反问题方法，对材料施加动态激励，我们可以从接收的响应表面位移求出内嵌裂纹的位置和形状。
The received surface displacements, in response to an applied dynamic excitation, are used to determine the position and geometry of embedded cracks based on a reverse elastic wave method.
基于弹性波的反问题方法，对材料施加动态激励，我们可以从接收的响应表面位移求出内嵌裂纹的位置和形状。
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