边缘的

And linking the principle of choosing computer visual inspection system hardware, the paper constructs hardware structure of visual inspection system, and develops measure software of thread geometry parameter and applies all above research results to quantificationally measure geometry parameters such as half angle of thread, coning and pitch of conical joint screw thread of graphite electrode, at last educes influencing expressions of the shelter of lead angle to half angle of thread change, it establishes theory base for error amendment.

论述了微小零件尺寸及形状误差的常用测量方法，提出了将视觉检测技术应用到微小零件尺寸及形状误差的测量中，构建了视觉检测系统的硬件结构，开发了相应的测量软件，应用第三章介绍的各种边缘检测方法对传动用滚子链链板进行了边缘检测对比实验，找出适合的边缘检测方法，并应用上述各章的研究结果对传动用滚子链链板节距以及圆形零件的圆度误差进行了测量。

This is an untouched measuring way. The cameras are calibrated in the way of RAC two steps, first. With the polynomial interpolation, the pictures catched from the steel plate are treated to detect the edge in subpixel with a cross window arithmetic operators, which can fit non uniform illumination, keep the edge character and do filter in a better way. Three-dimensional scenery could be rebuilt from the two-dimensional pictures with the methods of least square fitting and contradictorily clairvoyance. Thus, the distance and its variance of two points in the given position of the plate can be achieved. It is expected that this study can provide a new and useful tool to the research on the theory of distortion of line heating.

这种非接触的测量方式，采用RAC两步法对摄像机进行标定，然后对采集到的钢板图像进行分析处理，通过多项式插值的方法，采用具有保持边缘特征和滤波功能，且能适应非均匀照明的十字窗图像边缘检测算子进行象素级边缘检测，再用最小二乘拟合法和逆透视法对二维图像进行三维重建，便可测出钢板上给定点的距离及其变化值，以期为水火弯板的变形机理研究提供一种新的检测手段。

The method for the point sets selection of point Hough transform and the scan direction for image of searching the point sets were improved by using the geometrical characteristic of the concentric circles:The center of the concentric circles was obtained in the accumulative array firstly,radius was obtained by the mean of distance between the circle center and every edge points afterwards,both the circle center and the edge of the concentric circles were detected accordingly.

利用同心圆的几何特点对点Hough变换边缘点的点组选取方法和搜索点组的图像扫描方向进行了改进：首先由累加阵列确定同心圆的圆心，然后由圆心到各个有效边缘点距离的均值求出半径，从而检测出同心圆的圆心与边缘。

The upper member of the protective cover generally overlies the upwardly facing surface of the robot arm while the peripherally extending sidewall generally overlies the outwardly facing surface of the peripherally extending sidewall. In similar fashion, a protective plate of thin-walled plastic material impervious to fluids may also be removably attached to the downwardly facing surfaces of the robot arm and includes a peripheral rim generally coextensive with the peripherally extending sidewall of the link and proximate the lower rim of the protective cover when both the protective cover and the protective plate are so attached.

以相似的方式，一个由液体不能透过的薄壁塑料制成并且也被可拆卸地固定在该自动臂的下工作面(34)上的保护板(46)，该保护板包括一个周边边缘(48)，当保护盖(38)和保护板(46)都这样地固定在该自动臂上时，该周边边缘大体上与该连杆的沿周边方向延伸的侧壁(36)共同地延伸，并且靠近该保护盖的下边缘。

Based on the histogram multifractal spectrum estimation, a kernel density estimation of multifractal spectrum is suggested, and moreover a edge dection method by multifractal spectrum is present, simulation results show that image edges detecting through this method have good global and local character, and are more finner.

在多重分形频谱直方图估计方法的基础上，提出了一种基于核估计的多重分形频谱估计方法，同时提出了一种基于多重分形频谱分析的图象边缘检测方法，利用该方法所检测出的图象边缘具有良好的全局性和局部性，也就是说它能够检测出比较精细的图象边缘； 4。

The experiment results show that the edge detection algorithm has a good performance of noise reduction compared with traditional edge detectors, and the detected edge is smooth.

实验的结果表明，本文提出的形态学边缘检测算法，与传统的边缘检测算子相比，具有较好的抗噪性，并且检测出的边缘平滑性好，特征清晰。

The edges of the motor court have a more solid course of pavers to define the edge and an interior band or textured pavers with a color change as a visual cue to flag the edge of the pavement.

电机的法庭的边缘有一个更加坚实的铺设过程中确定的边缘和室内乐队或作为可视的提示，国旗在行人边缘纹理颜色的变化铺路。

By virtue of the assumption, in the framework of the classical scattering theory of the interaction between incident particles and a surface, a self-consistent local model for the interaction of atomic oxygen with surface materials on the spacecraft was developed based on the kinetic theory of molecular reaction.

该模型根据入射粒子轰击材料表面的响应强度，将相互作用区域分解为强干扰、边缘及弱干扰等三个区域，分别建立了相应区域的动力学模型方程。为了量化边缘区域粒子的耗散效应，本论文引入估算材料的Debye温度的Lindemann定律，并结合热容理论的Debye模型给出边缘区域分子间阻尼运动的摩擦系数。

A method based on linear singularity analysis of image is presented. The improved method, called Directional Beamlet Transform is better than traditional Beamlet transform about directional information of image and has the ability of representing linear-singularity of image. According to the analysis of linear singularity, edge detection is transferred to detecting singularity point in the coefficient matrix of DBT.

针对基于图像像素点分析的边缘提取方法存在无法同时满足高抑噪性、连续性、定位性等问题，本文提出了方向Beamle 变换方法，在定义图像线奇异性的理论基础上，利用DBT 对图像进行线奇异性分析，依据Beamlet 变换具有的线段提取能力，将图像边缘检测问题转化为方向Beamlet 变换系数矩阵中奇异点的检测问题，以降低噪声点对边缘检测结果的影响。

In this paper, it is shown that the increment of the plasma confinement time without consideration of radiation losses is a good scale for evaluating the plasma confinement improvement during the L-H like transition induced by electrode bias in tokamaks, if the ratio of the radiation power to the total loss power in the transition changes evidently.

辐射下降表明进入等离子体的中性粒子通量减少。这是中性粒子再循环的减小而造成的。同时，边缘密度和边缘温度下降，中心温度上升，约束得到改善，能量约束时间增加。径向电场是控制托卡马克等离子体从L模过渡到H模的关键因素。如果径向电场足够强，极向ExB旋转产生很大的剪切，剪切能够抑制边缘湍流1j。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。