平面

We systemically discuss how to uniquely decide an infinite plane homography matrix by using the structure information in scene and how to evaluate a homography matrix which convert affine reconstruction to Euclidean reconstruction by solving absolute conic images.

系统地讨论了如何利用场景中的结构信息，来唯一地确定无穷远平面的单应矩阵，进而由射影重构恢复仿射重构，以及如何通过绝对二次曲线的像求解将仿射重构变换为欧氏重构的单应矩阵。

In the first part, depending on three or more images, the main research work are listed as follows:(1) using SVD decomposition to realize projective reconstruction;(2) realizing camera self-calibration by solving Kruppa's equation;(3) recovering Euclidean reconstruction from projective reconstruction. Depending on only two images, the main researches are:(1) making out infinite plane homography matrix by using scene structure information, then recovering affine reconstruction from projective reconstruction;(2) making out the absolute conic images by using scene structure information, and then recovering Euclidean reconstruction from projective reconstruction.

在第一部分中，针对三幅及三幅以上的图像，主要研究：①利用矩阵奇异值分解实现射影重构，②通过求解Kruppa方程实现摄像机自标定，③由射影重构恢复欧氏重构；针对只有两幅图像的情况，主要研究：①利用场景结构信息求解无穷远平面的单应矩阵，由射影重构恢复仿射重构，②利用场景结构信息求解绝对二次曲线的像，由仿射重构恢复欧氏重构。

In addition, the absolute/convective instability is studied, and the governing region in the parameter plane is declared. It is shown that the absolute instability may become predominant when the electric field or the surface tension is sufficiently large.

另外，研究了单流体射流的绝对和对流不稳定性，在参数平面上给出了它们的控制区域，发现在电场强度足够大或表面张力足够大时，射流可能由对流不稳定状态进入绝对不稳定状态。

This is my last OpenGL for a project to use the "three-dimensional vector space / point" and related functions, they can use a definition of space vector / points, for the vector translation, zooming and rotation, the use of correlation function can also achieve two vector by the fork, get a Vectors absolute length of a vector unit, received a 3:00 decision vector perpendicular to the plane, a space to be the distance between two points, two vector to be the plot points, to be the angle between two vectors, such as operating for the use of user-friendly, each function is detailed Notes, it is particularly important if the calculation vector plot points, fork also took note, we hope to have useful.

这是我过去进行一个OpenGL项目时使用到的"三维空间向量/点"类及相关函数，使用它们可以定义一个空间向量/点，实现向量的平移，缩放和旋转等，使用相关函数还可以实现两向量的叉乘，得到一个向量的绝对长度，将一个向量单位化，得到一个三点决定的平面的垂直向量，得到空间中两点的距离，得到两向量的点积，得到两向量的夹角等操作，为方便用户的使用，每个函数都有详细的注释，特别重要的向量计算如点积，叉乘还有相关说明，希望对大家有所用处。

Analytical expressions for electromagnetic fields of a vertical or horizontal electric dipole over the finitely conducting plane are derived subject to the boundary conditions; Sommerfeld type integral contained in Hertz potential is expressed as the sum of two parts: zeroth order Hankel function and an absolutely convergent series of spherical Hankel function.

在此边界条件下，推导出有限导电平面上垂直和水平电偶极子电磁场的解析表达式；赫芝位函数中的索末菲型积分被表达成零阶汉克尔函数与绝对收敛的球汉克尔函数级数之和的形式。

Stability of double Nd: YVO4 crystals laser′s equivalent cavity is analyzed, theory result expresses that crystal′s thermal lens generated by laser crystal absorbing pumped power will play important effects to cavity stability.

对平行平面谐振腔的等效腔进行了理论分析，结果表明激光晶体吸收泵浦光产生的热透镜效应对保持腔的稳定性起到了重要的作用。

"All-round graphic design material Dictionary" is a series of library types of numerous products, everything: science and technology category, abstract class, business class, character class, the world famous category, type of flowers, garden class, the Chinese customs categories of Chinese picture category natural categories, agricultural-type, tool type, astronomy class, still-life category, border type, shading categories, sports, cartoon-type, instrument type, such as an integrated tool material.

全方位平面设计素材辞典》是一套种类众多的系列图库产品，举凡：科技类、抽象类、商业类、人物类、世界名胜类、鲜花类、园林类、中华风情类、中华图片类、自然类、农业类、工具类、天文类、静物类、边框类、底纹类、运动类、卡通类、乐器类、综合类等工具素材。应有尽有，包罗万象。

In addition, the properties and the characteristic theorems of this kind of integral are discussed by means of studying abstract functions in Banach space.

又在此导数基意义下定义了平面上模糊数值函数的Henstock积分，并利用Banach空间上的抽象函数对其进行了刻划。

When Jimmy and Trish Lyle considered buying a home outside Jackson, Mississippi, they asked Jimmy's brother, John, to weigh in on the purchase. A Manhattan-based designer of furniture and interiors, John Lyle shared his brother and sister-in-law's enthusiasm for the home's floor plan and location, but didn't think the Acadian cottage's country aesthetic really reflected their taste.

当吉米和特里什莱尔考虑收购密西西比州杰克逊的家，他们问吉米的弟弟约翰，按照英寸来衡量并购买阿曼哈顿的家具和室内设计，设计师约翰莱尔，共同分享他的弟弟和小姑的家庭平面布局和空间，但是，他们并不认为阿卡迪亚的平房设计能反映他们所喜欢的设计风格。

The variation tendency of pulse pressure waveform along acoustic axis and in the focal plane has been numerically studied also.

同时还数值研究了脉冲压力波沿声轴和焦平面上的变化趋势，在幅度下降-6 dB的焦斑内没有观察到波形的明显变化。

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。