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In the self - calibration scheme , the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters . we presents an accurate f method based on corresponding point adjustment . the method adjusts coresponding points according to the fixedness of projective transformed cross ratio , then calculates f matrix accurately through linear and non - linear methods . when computing intrinsic parameter , a matrix , we simplify the step , and stress on the two important parameters of a . the result will be getten through solving kruppa equation based on svd decomposition . in order to compute extrinsic parameters , we use linear method to get initial r and t , then apply non - linear method to accurate them

提出了基于匹配点调整的f求精方法，先根据摄影交比不见性对手工选择的匹配点进行调整，再用线性、非线性结合的方法求精f矩阵；在计算内部参数a中，进行了一定的简化，把重心放在a中重要的两个参数上，用svd分解法计算kruppa方程；在计算外部参数时，首先用线性法求解r、 t ，然后再用非线性法迭代求精。

We research the spherical harmonics express of Lambert re- flection and propose a pure image based rendering method to synthesis image under arbitrary illumination condition based on spherical harmonics.

研究了朗伯反射的球调和表示，提出了一种基于球调和函数的任意光照目标图像生成方法。

"These internet based communities are the soul of Chinese social media," said Sam Flemming of CIC, a Shanghai-based research and consulting firm that tracks Chinese bulletin boards and blogs for multinational companies.

"这些建立在网络上的社区就是中国社交媒体的精髓所在。"来自CIC的Sam Flemming说。这是一家位于上海的研究咨询公司，主要根据中国网站论坛和博客的内容为跨国公司提供咨询服务。

Methods: A retrospective study was conducted using an insurance database from Bureau of Nation Health Insurance - Central regional branch with registered children born in 2001 who received teeth fluoridation and anti-decay program. The difference of utilization of dental care preventive service analysis was based on each individual child's character and required dental treatment. For cost-benefit analysis, children were selected who were eligible receiving or non- receiving this benefit from July 1, 2004 till 2007. Two groups were compared by frequency matching analysis, based on sex, medical provide territories, insured fee. Additional Incremental benefit/cost method of cost-benefit analysis is also conducted to evaluate the service providing cost increasing and dental treatment cost decreasing effectiveness.

研究方法主要系透过健保局中区分局93年至96年儿童牙科医疗费用统计资料，比较90年次出生之儿童接受涂氟预防保健服务之人口学特质及其涂氟前后牙科医疗利用差异；并依该等对象接受涂氟预防保健服务与否区分两组，就其性别、就医地区别与全民健保投保金额组别等予以配对，进一步应用成本效益分析（cost-benefit analysis，CBA）之增量益本比（Incremental benefit/cost method，IBC），探讨儿童牙齿涂氟预防保健服务成本的增加，使牙科医疗费用减少所带来效益的增加为何。

The main researches about Chinese character recognition of vehicle license plate and its corresponding technique in this paper are as follows:(1) The pre-processing for image is essential before character recognition. This paper firstly uses the experience knowledge to give a roughly orientation,then set a carefully orientation based on Otsu arithmetic,finally get the whole clear license plate.In order to solve the problem of character extraction,the fly-back method is put forward:the experience knowledge is made the best of.(2) An algorithm of feature extraction from grayscale image based on optimization Gabor filters is proposed.

本文针对车牌汉字识别及相关技术进行研究，主要工作包括：(1)在对车牌汉字进行识别前需要进行必要的预处理工作，我们首先运用车牌的先验知识进行粗定位，然后采用Otsu阈值二值化方法等进行快速鲁棒的车牌区域细定位，获得完整、清晰的车牌轮廓，并采用回扫式字符切割方法，充分利用了车牌字符固有的特点准确找到各个字符的分割点，为特征提取奠定了基础；(2)提出一种优化的Gabor滤波器特征提取算法直接对灰度图像进行特征提取。

In the paper, based on the analysis of output noise of FOG, wavelet threshold de-noising theory is applied in FOG's signal processing, and the method is compared with Strong Trace Kalman Filtering optimal estimation method based on ARIMA model.

在分析了光纤陀螺输出噪声的基础上，将小波阈值去噪理论应用到光纤陀螺信号处理中，并与基于ARIMA模型的强跟踪Kalman滤波去噪方法进行了比较。

An aided design system based on BP neural network is set up in this paper based on the multiple elements and factor of footway pavement .

基于步行铺面组成要素、影响因素的多样性，提出的一种基于BP神经网络的辅助设计系统，可以实现铺面外观的计算机辅助设计。

based on wilensky's ant colony foraging model and considers additional nature rules including multispecies, competition and evolution mechanism,promoted antcolonysim model.it carried out simulations based on antcolonysim under different conditions as well as emergent properties including foraging predominance and analyzed competition predominance.

摘 要：在wilensky蚁群觅食模型基础之上，增加了多样性、竞争机制和进化机制，提出了人工蚁群觅食行为仿真模型。通过对该模型的仿真，分析了不同条件下的系统整体涌现属性，包括最短觅食路径、蚁群觅食优势和竞争优势。

This paper expounds the approach to simulation of the roller gear indexing cam based flexible cam axes,and studies the method of forcing between flexible cam axes and rigid graduator to set up the model for simulation of the roller gear indexing cam based rigid-flexible coupling .

阐述了在考虑凸轮轴柔性条件下实现弧面分度凸轮机构运动仿真的途径和步骤，结合有限元技术和虚拟样机技术，研究了如何在柔性体凸轮轴与刚体分度盘之间施加作用力的思想和具体实现方法，为该机构的刚柔耦合运动仿真提供了基础模型

Reasoning by analogy contain broad sense and narrow sense. The broad sense analogy indicates generally the inference based on genus, which equal to what we now say inference (contain deduce, induce, analogy). The narrow sense analogy only points several typical inference form based on same genus that the ancients discussed in Mohist Argument: pi, mou, yuan, tui, which mostly equal to what we now say analogy.

推类有广义和狭义之分：广义推类泛指在类的基础上进行的推理，相当于我们现在所说的推理；狭义推类仅指《墨辩》中论及的譬、侔、援、推等几种典型的、以类同为依据的推理类型，大致相当于当今所说的类比推理。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。