目前广泛采用最大曲率方法实现指纹中心定位，但在指纹中心缺失情况下，该方法定位并不准确。
To realize center point positioning of fingerprint, method of maximum curvature is widely used at present. But it is inaccurate when the center region of fingerprint has been lost or not clear.
在文中，分别讨论了拉普拉斯平滑及其改进算法、平均曲率流、PDE方法及基于方向的平滑算法。
In this paper, we discuss Laplacian smoothing and modified methods, mean curvature flow, PDE method and the smoothing method based on directions.
介绍了我们所采用的一些曲面分析方法，包括曲面的曲率分析和曲面深度分析，并应用于颅骨面貌复原项目中的曲面造型。
The thesis tells surface analysis method including curvature analysis and curve depth analysis that we using in the skin restoring project.
利用矩形箍筋约束混凝土的应力一应变关系和平截面假定，建立了高强混凝土剪力墙截面曲率延性系数的计算方法。
A method to calculate the section curvature ductility index of high strength concrete shear wall is induced by using stress-strain relationship of rectangle stirrup and plane section assumption.
进一步讨论了采用CAD动画的方法，高速高精度地计算凸轮廓线曲率半径的过程。
Then the process for computing the radius of curvature of planar cam profile is introduced by means of CAD animation.
提出利用有理二次样条曲线插值整体曲率连续的曲线的一种方法。
A method for interpolating global curvature continuity curves with conic segments is presented in this paper.
试验证明，增量压弯成形工艺是成形具有一定曲率外形的复杂结构整体壁板的合理而有效的方法。
The experiment indicates that the incremental bending forming technology is a reasonable and effective method to form the integral panel with complete structure and some curvatures.
论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed.
该方法不仅可以用于空间曲率检测的标定工作，也可适用其他一些空间矢量的检测工作。
The geometric meaning of this method is then defined not only for measurement of spatial curvature, but also for inspection for some other spatial vectors.
本文讨论位于弹性地基上的双曲率扁壳优化设计的一个方法。
The present paper discusses a method of optimal design of the shallow shell with double curvature on the elastic foundation.
本论文采用直接表面曲率迭代方法(DISC)进行跨声速翼型设计。
In this paper the Direct Iterative Surface Curvature (DISC) design method is presented for designing airfoils at transonic speeds.
方法观察组在角膜曲率大的轴向上行角膜缘松解切口晶状体超声乳化术50例（58眼）。
Methods In the study group there were 58 eyes in 50 cases performed limbal relaxing incision phacoemulsification at the biggest corneal curvature.
在测量既有铁路曲线时，传统的测量方式是偏角法，计算曲率和拨距的方法是渐伸线法。
The traditional method to measure the curves in exiting railway is the method of deflection Angle, while the method to calculate the curvatures and the deflection distance is the involute method.
提出了一种应用于非开挖管线测量，在已知离散点曲率的情况下进行空间曲线重构的方法。
A reconstruction method of using the discrete curvature data for space curve was proposed on underground pipeline detection.
并着重对盘梯曲率半径的计算方法及盘梯预制中的整形问题作了讨论。
It also emphasises the calculating method for the radius curvature of the round ladder and discusses the problem of rectifying the form of round ladder in prefabrication.
提出了一种基于数据点曲率变化区域分割方法，该算法原理简单、易于理解和编程。
A method of region partition based on the curvature variation of data points is proposed. This algorithm is simple in principle, easy for understanding and programming.
应用结果表明，高斯曲率法是一种预测和评价构造裂缝分布规律的有效方法，具有很好的应用前景。
This paper will prove that Gauss curvature method has a very good application prospect in reservoir fractures.
按本文的方法设计特殊速比函数，可使与主动滚子啮合的从动凸轮廓线不会产生曲率干涉。
The special speed-ratio function designed in this paper can make driven cam profile that meshing with driving roller no curvature interference.
本文的主题是对CAGD系统中所需的曲面曲率线的计算方法进行研究。
The topic of this paper is to make an investigation on arithmetic for curvature lines of surface in CAGD.
本文研究常曲率平面上的凸集，研究常曲平面上的凸集方法。
In this paper we investigate the convex set in a plane of constant curvature.
本文的方法还可用来分析优化齿面的曲率修正参数，以及误差作用下的齿面接触情况。
Also this method can be used to optimize the parameters of modified worm gear drive and analyse the contact condition under errors.
该算法利用差分求导的方法求得指纹的曲率场，并按照一定的规则搜索参考点。
The curvature image of fingerprint was calculated by using difference derivation, and the core point was searched complying with certain rules.
提出一种新的轮廓特征点提取方法，它利用最小二乘法拟合轮廓曲线，结合斜率、曲率信息提取特征点。
A new feature-points extraction algorithm is proposed, which USES least square method fitting contour curve and combines slope, curvature information to extract feature-points.
除了常见的几何测量(如距离和角度)外，提出了一种平均曲率能量的测量方法来描述边界曲线特征。
Besides common geometric measurements such as distances and angles, a new measurement of average curvature energy defined for boundary curve segment is included in the set to describe curve feature.
这种方法不需要得到目标精确的曲率命令和速度方位信息。
The algorithm needs no accurate information on the curvature command and velocity relative heading angle of the target.
通过对平面桁架的模拟损伤识别，证实了基于柔度差值曲率法的损伤定位方法的可行性。
By simulative damage detection to the plane truss, it proves the feasibility of the methods of damage detection based on the flexibility difference curvature.
研究了三角网格模型上顶点曲率的估算方法，并用参数曲面的网格模型验证了曲率估算的精度。
The main contents are as follows:A vertex curvature estimation method for triangle mesh is researched and the accuracy of curvature estimation is verified by parameter surfaces.
在曲面重构方面，提出基于曲面曲率的数据点自适应压缩方法，以实现对散乱点的NURBS曲面重构。
For surface reconstruction, the new adaptive extracting approach based on curvature of surface is developed so as to reconstruct the NURBS surface for the scattered data.
研究了适用于桥梁和连续梁结构的基于曲率模态振型的损伤识别方法。
A damage identification approach applied aptly in Bridges and continuous beams, based on the curvature mode shapes, was studied in this paper.
研究了适用于桥梁和连续梁结构的基于曲率模态振型的损伤识别方法。
A damage identification approach applied aptly in Bridges and continuous beams, based on the curvature mode shapes, was studied in this paper.
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