A neural network based scene-adaptive non-uniformity correction algorithm for infrared focal plane arrays is proposed. This method redesigns the structure of the hidden layer, which is helpful to estimate the desired target value more precisely. In addition, the variable step size normalized LMS based adaptive filtering technique is introduced to the correction parameter estimation process, which yields faster convergence and higher stability.
提出了一种基于神经网络的红外焦平面阵列非均匀性自适应校正方法，重新设计了隐含层结构以获得更接近真实信号的期望信号，此外，还将变步长归一化LMS自适应滤波技术引入到校正参数的迭代估计过程中，以实现对校正速度和稳定性的提升。
Equipment characteristics: ease of convergence between the drum line filter can be used a number of drum lines and other transmission equipment or the composition of the complex plane logistics transportation system, the completion of a wide range of technology needs.
设备特点：滚筒线之间易于衔接过滤，可用多条滚筒线及其它输送设备或专机组成复杂的物流输送系统，完成多方面的工艺需要。
At any point the convergence is the angle between the meridian as represented on the plane and the N grid line.
一点上的收敛角是子午线在平面上的投影与N坐标线之间的角度。
The plane-parallel resonant cavity is built up in theory with the U-shaped bending waveguide for TM mode. The beam splitting and convergence effect are also discussed for the structure composed of filling-factor graded wave-like 2D-PC and one-dimensional multilayer thin films.
利用TM模的U型转弯波导构建了新型的平行平面谐振腔，并指出由填充率渐变型波状结构二维光子晶体和一维多层薄膜构成的混合结构在光分束和抑制光束发散方面的作用及其在平行平面谐振腔中的潜在应用。
In this paper, the theory, algorithm, and experiment of automatic object detection and tracking are studied in depth. It is firstly pointed out that the essential of Mean Shift method is a special Newton-Gaussian method. A new method named Fast Mean Shift is established to stretch the conservative step of Mean Shift method. The convergence and validity of this new method are proved in theory. And it is also proved that the convergence speed of Fast Mean Shift is faster than that of Mean Shift. The contrast experiments of searching the maximum possibility density of random of data sets in plane and 3D space are done. The results show that this new method can reduce the iterations greatly. A new object tracking method based on Fast Mean Shift is built to improve the object tracking performance, which is shown in the face tracking experiment with the tennis sequence provided by the Ohio State University, and the car tracking experiment with the car sequence provided by Kalsruhe University. The face trcking experiment with highly noised images show that the object tracking method based on Fast Mean Shift has strong anti-jamming ability. A new fast color object detection technology based on characteristic color is established, which use characteristic color distribution to compute the characteristic color vector of any area in an image quickly. With the high performance search method, the fast object detection is achieved. At last, using object tracker based on Fast Mean Shift and color object detector based on characteristic color with the Kalman filter, PID controller, searial communication and other technologies, automatic object detection and tracking system with control system is built. The availability and anti-jamming ability of this system are verified by some object detection and tracking tests in different scenes.
本文对目标自动识别与跟踪进行了理论、计算、试验三方面的深入研究，主要包括：首次指出了目标跟踪技术中常用的均值迁移方法的本质为一种特殊的高斯-牛顿方法，改进了均值迁移方法步长取值保守的弱点，建立了快速均值迁移方法，证明了该方法的收敛性、有效性以及收敛速度优于均值迁移方法；进行了平面和3维随机分布数据集的最大概率密度搜索对比试验，试验结果表明，快速均值迁移方法大大减少了迭代次数；建立了基于快速均值迁移的目标跟踪方法，利用俄亥俄州立大学提供的乒乓球序列图像和卡斯鲁厄大学的汽车序列图像，对人脸和汽车目标跟踪性能分别进行了对比试验，并进行了高噪声人脸图像目标跟踪试验，结果表明，基于快速均值迁移的目标跟踪方法有效提高了目标跟踪性能，具有很强的抗干扰能力；建立了一种新型彩色目标自动识别方法，采用特征色彩分布函数实现了对任意图像区域特征色彩矢量的快速计算，建立了高效的搜索方法，实现了彩色目标的快速识别；将基于快速均值迁移方法的目标跟踪方法、基于特征色彩的目标识别方法与卡尔曼滤波、PID控制、串行通讯等技术结合，建立了带有控制系统的快速目标自动识别与跟踪系统，并在不同场景下进行了目标自动识别与跟踪试验，验证了快速目标自动识别与跟踪系统的有效性和抗干扰能力。
Q vector divergence field on vertical section plane along NE-SW direction on Fujian coast submit piece form district of convergence and divergence, have reflected meso-scale character.
Q矢量诊断表明，Q矢量散度在福建沿海NE-SW向的垂直剖面图上呈条块状辐散、辐合区相间分布的形式，反映了中尺度特性。
The reflection wave of a cone beam, which is formed by a linearly polarized plane wave through a convergence system and then incident upon a stratified medium, is analyzed.
本文用光线方法分析偏振单色平面波会聚成锥形光束后入射到多层介质膜上的反射波，得到了计算反射波电场强度的近似公式。
A horizontal line or plane at right angles to the plumb. Gauss grid convergence
水平线与铅锤线成直角的水平线或水平面高斯平面子午线收敛角
The equivalence of some propositions describing the continuity of real numbers and coordinate plane is proved, for example: In the coordinate plane, using the compactness theorem the Cauchy convergence principle is proved;
证明了描述数直线和坐标平面的连续性的一些命题的等价性，如在坐标平面上，用致密性定理证明Cauchy收敛准则；
Highway design in the new and old way of convergence as well as the used road reconstruction and extension need to understand the plane and vertical alignment of existing roads accurately.
公路设计中的新、旧路的衔接以及旧路改扩建等工程设计，需要精确了解现有道路的平、纵断面线形。
The objective of this paper is using Galerkin finite elements method to research multidimensional plane unsteady neutron transport equation, and to get the convergence of Galerkin finite elements method approximate solution and the existence of generalized solutions.
使用Galerkin有限元法研究了多维非定常中子迁移方程，证明了Galerkin有限元法近似解的收敛性和广义解的存在性。
The convergence proof of the plane rational finite element
平面理性元的收敛性证明
Helling and Jorgensen established the algebraic convergence theorem, limit theorem and convergence theorem in plane, respectively.
Helling、Jorgensen分别建立了平面Mobius群列的极限定理、代数收敛性定理和收敛性定理等等。
By the numerical analysis of the ultimate bearing capacity of two- and three-dimensional footing under combined loading mode, the results show that the effect of alteration of underground water lever on bearing capacity of three-dimensional foundation is more than on that of two-dimensional foundation, the effect of soil gravity on bearing capacity of three-dimensional foundation is more than that of two-dimensional foundation. At the same time, the numerical calculation process of ABAQUS indicates that whether the geostatic stress is balanced or not has great effect on the numerical convergence. In view of the effect extent of dilation angle of soil on the ultimate bearing capacity and the failure pattern of foundation, the condition of two-dimensional plane strain is higher than that of the three-dimensional foundation.
复合加载模式下，通过对三维矩形基础和二维条形基础进行数值分析，结果表明：黏性土地基中地下水位的变化，对三维矩形基础极限承载力的影响程度高于对二维条形基础的影响；在求解地基极限承载力的过程中，土体重度对三维矩形基础的影响明显高于对二维条形基础的影响，同时ABAQUS数值计算过程表明，地基土体地应力能否合理平衡，对数值求解过程中是否收敛有很大的影响；就土体剪胀角对地基极限承载力的影响程度而言，二维平面应变情况下土体剪胀角对极限承载力的影响比三维情况下的影响更明显，即土体剪胀角对条形基础极限承载力的影响高于三维矩形基础。