查询词典 inversing

A new computation expression is presented in order that the process for huge matrix inversing could be avoided and the numerical accumulated error could be decreased also.

提出了一个新的当网格单元形状为不规则三角形时的计算格式，避免了对大型矩阵的求逆运算。

According to the basic principles of information theory, computer graph processing and the chromatics, this thesis mainly researches on the theory and applications of the color images watermark using the characteristics of the human visual system. And then it discusses the preprocessing method such as Image color inversing and image disordering, especially the method of watermark embedding, watermark extracting and watermark attacking etc. At last, an experimental system about watermark embedding and extracting are accomplished.

本文首先根据信息论、计算机图形处理和色彩学中的基本原理，结合人眼的视觉系统特性，对彩色图像水印的理论与应用进行了研究，然后讨论了如何对水印图像进行反色和置乱预处理，尤其是对水印嵌入过程、水印提取过程和水印攻击方法等进行了深入探讨，并最终设计实现了一套完整的具有水印嵌入与提取功能的实验软件。

Conventional meteorologic radar cannot distinguish radar reflectivity and specific attenuation of rain. There is some principled error to measuring rain by it. A new method on inversing rain rate distribution along Earth-Space path by radar-satellite system is presented in this paper.

一种改进气象雷达测雨性能的新方法胡大璋（中国电波传播研究所青岛研究中心，青岛266003）常规气象雷达无法分离雷达反射率和雨衰减率，因此用它测雨具有一些原理上的误差。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

Based on the optimized solution of inversion problem,the information inversion theory was taken for inversing the blasting parameters of highway tunneling.

在研究逆问题优化解的基础上，将信息化反演理论引入到隧道爆破开挖的控制参数反演问题中，建立隧道围岩控制爆破参数的反演模型。

An image fusion method based on HSI transform and Laplace decomposition is proposed for multi-focus micropaleontology image fusion.Firstly images to be fused are transformed into HSI,then the I component is decomposed by using Laplacian.The high-frequency and low-frequency images are fused respectively based on Robert grads and region weighted average.Last the fused image is obtained by inversing HSI transformation.

首先对待融合的图像进行HSI变换，用Laplace算子对图像的I分量进行多级分解，分解后的低频分量和高频分量分别采用基于Robert梯度和区域加权均值的融合规则进行融合，最后再进行HSI反变换得到融合图像。

The digital speciemen image of adult Helicoverpa armigera Hubner was acquired using a digital camera in an image acquisition environment.Several methods of image enhancement were covered, including linear smoothing, median filtering, linear greylevel transformation, contrast stretching, image inversing and histogram equalization. Results demonstrated that these methods evidently enhanced the speciemen image of H.

digital image ；本研究以棉铃虫成虫标本作为数字图像源，设计了图像获取环境，以数码相机做为数字图像获取设备获得了棉铃虫成虫的数字图像，介绍了昆虫数字图像增强的方法，包括图像的线性平滑、中值滤波平滑、线性灰度变换、对比度拉伸、图像求反以及直方图均衡化等增强方法，证明这些方法对棉铃虫图像具有明显的增强作用。

In detail, the general functions include displaying historgraph, adjusting light, enhancing constrast, inversing gray, zooming image, median filtering, high filtering, low filtering, noise filtering, isolated point filtering, high sharping, low sharping, Laplac edge enhancing, Sobel edge measuring, erosion edge measuring, dilation, erosion, open, close, binary.

通用功能包括直方图显示与统计、亮度调节、对比度增强、灰度反置、图象缩放、中值滤波、高通滤波、低通滤波、躁声滤波、孤立黑点滤波、高通锐化、低通锐化、拉普拉斯边缘增强、Sobel边缘检测、收缩边缘检测、图象膨胀、图象腐蚀、图象开闭，二值化等。

The simulation results show that the method is rapid in inversing the brightness temperature and can improve the image resolution effectively and meet the real-time requirements.

仿真结果表明该方法有效地提高了图像的分辨率，且所需时间短，满足实时性的要求。

In this dissertation, a new inversing algorithm called essemble-spatial optimizing method is presented which can lower the sensitivity of inversing error to noise to some extent.

噪声是影响求逆的主要因素，本文提出的总集空间全局寻优求逆准则在一定程度上降低了求逆对噪声的敏感性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。