查询词典 boundary line

Experiments on synthetic images with low signal-to-noise ratio and scene images show good performance and robustness of the approach, especially it's capabilities of capturing the discontinuous boundary and moving snakes into boundary concavities.

对人工合成的低信噪比图像及景物图像的实验表明本文方法具有很好的性能及鲁棒性，特别是在处理目标边缘不连续及有凹形边缘时更显示了其优越的性能。

Experiments on synthetic images with low signal-to-noise ratio images and nature images show good performmance and robust of the approach, especially it's capable to capture the discontinuous boundary and move snakes into boundary concavities.

对人工合成的低信噪比图像及自然图像的实验表明，本文方法性能良好，工作稳定，具有较强的处理边缘不连续及进入凹形边缘能力。

The main results in this paper as follows: First, a prototype of a shape-based image database retrieval system is completed, it can receive the query mode both by giving an example image and by sketching the desired object on the screen, Second, five shape-based image retrieval methods are realized; Third, an algorithm based on triangulation for shape-based image retrieval is brought forward. In this algorithm, firstly, the edge of the original image is followed and the candidate corners in the original image are detected. Then the counterpoints of the candidate corners in the result of edge follow are found, and the boundary corners whose counterpoints have been found are queued in the order of their counterpoints in edge follow. After these steps, the boundary corners are triangulated and triangles are obtained which can show the true shape of the original image. Finally, shape feature is obtained by calculating the angle histogram of the triangles.

同时本文中主要完成了以下三方面的工作：完成了一个基于形状特征的图象检索的原型系统，可实现例子图象或徒手绘草图两种查询方式；实现了五种利用形状特征进行图象检索的具体方法，并对其进行了分析比较；并且在继承将三角剖分引入形状检索的思想基础上提出了利用三角剖分进行形状检索的一种新算法：先对原图象进行边界跟踪和角点检测；然后寻找初始角点在边界跟踪中的对应点，并对找到对应点的角点按其对应点在边界跟踪中的顺序进行排序；再对排序后的角点进行德洛内三角剖分，得到能表示目标真实形状的三角形序列；最后计算三角形序列的角度直方图作为形状特征，并进行相似性匹配。

The Bengtsson-Jacobson conjecture that "degenerate phase boundaries are always null" is studied by the mapping language in Chapter 4. By distinguishing a "phase boundary" from its image in the "covariant approach", the nulless of the image is proved. Time-like and null hypersurfaces in the degenerate space-times in the Ashtekar theory are denned, and then the phase boundary obtained by the "covariant approach" is shown to be always null.

我们在第四章用映射的语言分析了Bengtsson和Jacobson关于&相边界为类光&的猜想；通过区分&协变方法&中的&相边界&和它的像，我们证明了像的类光性；在定义了Ashtekar退化时空中的类时和类光超曲面之后，我们证明了&协变方法&得到的相边界必定是类光的。

The results showed that the adhesion characteristic between PC and acrylate adhesive was significantly improved after modification because of ion beam bombardment resulted in excellent hydrophilicity, increasing of the polarity, denuding of the weak boundary and engendering of crosslinked boundary.

结果表明：改性后的PC与丙烯酸酯胶黏剂的压剪强度得到了明显的改善。经分析，粘接性能的改善是由于低能离子束表面改性后的PC表面润湿性能的改善、表面活性的提高、表面弱电层的剥蚀和表面微交联层的生成引起的。

At present, There are greatly divaricates about the boundary of the appellation in modern Chinese. Above all, this article definitude the connotation and the extension. In the second part, the article particularly expatiate the five kinds of the titles on the base of the boundary. In the third part, on the base of sorts the article searches the combination rule of every kind of titles and the relation of combination.

第二部分在称呼语界定的基础上，对各类称呼语进行了分类阐述，将称呼语分为五类，并在此基础上进而划分小类，力求对每类称呼语进行详尽阐述，第三部分则在分类的基础上探求各类称呼语的组合规律，探讨了四类称呼语的组合关系。

Firstly, the lake water quality model is developed under the condition of both internal and external pollution by using the method of microelement analysis, then homogenizes the non-cylindrical boundary condition and utilizes the methods of vector expending and pseudomonotone of the variational operator, and last the existence and uniqueness of the solution for a type free initial-boundary value problem is obtained.

本文首先运用微元分析法导出在外源和内源双重污染下湖泊水质模型，然后对一类自由初边值问题通过对非柱形边界条件的齐次约化，运用变分型算子的向量扩张和拟单调方法获得解的存在性、唯一性。

The plastic deformation which is caused by the enrichment of edge dislocation with the same symbol, the incline crystal boundary which occurs when edge dislocation arranges vertically and the dissymmetry incline crystal boundary which is born of the distortion of crystal lattice are the three kinds of possible mechanism by which the graphite gets more crooked as nitrogen adds.

同号刃型位错群聚产生的范性变形，同号刃型位错垂直排列所产生的倾侧晶界，以及因晶格畸变而产生的非对称倾斜晶界是氮使石墨弯曲程度增大的三种可能机制。

Automatic boundary extraction of multiple targets of interest in an ultrasound image can not only help clinicians find out most perceptible objects, but also save sonologists' time for boundary delineation. Moreover, it is potentially helpful for the novice instruction and medical research.

中文摘要超音波影像之目标物自动边缘侦测，可帮助临床医师找寻可疑的目标物，节省检测人员手绘目标物的时间，还可以应用於超音波影像之电脑辅助诊断，新进医师的辅助教学，对於医疗诊断与教学研究都有帮助。

So the West is scientific, the non-West is not; physicians are scientific, midwives and alternative healers are not; chemists are scientific, wives and husbands in their kitchens are not. This process is most pronounced, in general, in those societies that border occident and orient. If our focus is on science, then the process of orientalizing and occidentalizing should be most pronounced just at the boundary between science and the humanities, and even more so at the boundary between the physical, the natural, and the social sciences.

西方是科学的，非西方则不是；医师是科学的，接生婆和江湖术士则不是；化学家是科学的，厨房里的妻子和丈夫则不是；总体上，这一过程非常明显，在那些社会之中界定着西方的和东方的；如果我们的焦点是在科学上，那么西方化和东方化的过程应该是在科学与人文的分界点上是最明显的，甚至是在物理科学、自然科学和社会科学的分界点上是最明显的。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。