二次图像

On the basis of OCM, segmentation based on curvature radium is presented in the paper, in which curvature radium is calculated using parametric-surface fitting, and detecting edge points is realized from orthogonal direction, which ensure the integrality of edge points. Since the data is organized by cross-line in OCM, a new arithmetic, Double-direction Angle Difference arithmetic, is brought forward, which can pick up edge points more quickly.

物体的表面一般由多个曲面相交组成，要建立完整的几何模型，需要对测量数据进行区域分割——区分不同曲面的数据，现有的区域分割大多是对单视图的图像式测量数据进行的，但完整的CAD模型需要联合多个视图产生，本文在上面提出的三维正交模型的基础上，提出了三种区域分割方法：第一种方法是基于曲率半径的数据分区方法，通过二次参数曲面拟合计算局部曲率半径，从正交的多个方向进行检测，保证了边点提取的完整性。

The effect of characteristic parameters on differential thermal analysis curve, solidification setup temperature and cooling rate on dendrite arm space was studied, and IAS-4 Image Analysis System was used for microstructural examination.

本文采用差热分析方法研究DTA曲线特征参数、凝固开始温度和冷却速率对二次枝晶间距λDAS的影响，同时使用IAS - 4图像分析系统分析了合金的微观组织。

This paper study classical segmentation methods and put forward a kind of synthetic segmentation method based on fractal parameter, the secondary statistics eigenvector of gray value.

本文在经典分割方法的基础上，提出了基于灰度的二次统计特征量－分形参数的图像分割综合法。

The computation results show that compared with the traditional FLIC, the computation efficiency of the improved algorithm increases by approximately 10%, and it can generate sparse texture and dense texture simultaneously. Also the property of result image was improved using double LIC algorithm.

计算结果表明，与一般的快速线积分卷积法相比，改进后的算法计算效率提高了约10%，同时可以产生稀疏纹理和密纹理，并且采用二次LIC法对图像进行后处理提高了可视化效果。

In this paper, a scale space clustering algorithm based on mathematical morphology operators is proposed. The data are firstly converted into a binary image, the noises are then deleted with close open operators. A scale space is constructed with the close operator and structure elements as well as increased size. The connected cells merge with each other with the increasing scale until all of them combine into one.

中文摘要：提出了一种基于数学形态学算子的多尺度聚类方法：首先将数据进行二值图像化处理，利用一次闭开运算去除噪声干扰后再利用逐步增大结构元素的闭运算构建尺度空间，图像内的连通单元集随着尺度上升不断融合，最终全部归并。

Firstly the fuzzy entropy in quadratic form is modified by substituting standard negative operator of Zadeh with generalized negative operator of Sugeno, and the generalized fuzzy entropy formula is obtained.

首先将Sugeno广义否定算子替代二次型模糊熵公式的Zadeh标准否定算子，得到了参数型的广义模糊熵表达式；其次，将其应用于构造图像阈值化分割的准则函数；最后，给出了图像阈值化分割新算法中的广义模糊熵参数自动选取方法。

Chapter 3 introduces a new fingerprint segmentation method based on quadric surface model, which is the main innovation of this article.

第一章绪论，主要介绍了指纹识别技术的概况及其存在的技术难点；做为开展研究工作的基础，第二章研究并实现了基于块图像的指纹分割方法；第三章详细介绍了本文的主要创新之处——提出并实现使用二次曲面模型进行指纹图像分割的方法；第四章是指纹匹配算法研究，对一种现有的指纹匹配算法进行了一定改进；第五章为总结和探讨。

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杨主张在苏凯的方式，在一轮threeworld池锦标赛括号（/图像/上传/世界池-冠军- bracket.pdf ），讨论2006年菲律宾世界池锦标赛（/论坛/的index.php ）对表一，二-次世界冠军朝方黄吉雯-彭面临着他的乡下人富鸿炜，谁是希望使去年第16条规定的竞争，有史以来第一次的时间。

Image for the differential procedures, including the differential horizontal and vertical differential once, such as second derivative.

求图像的微分程序，包括横向微分，纵向微分，一次，二次微分等。

Our program running on the Traffic Recording and Management System can handle the video stream and capture the frames of interest without too much manual work.

我们对广州市交警支队2000年开发的&交通违章图像数字记录及管理系统&进行了二次开发，增加了截取图像帧的功能模块。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐