扫描转换

In this paper, we research the imaging problems beneath volcanic area. We sort common asymptotic conversion point gathers and perform velocity analysis to establish the initial velocity which will be used in PSTM. By scanning migration velocity and V p/ V s, we get the optimum migration velocity and

本文针对火山岩地震屏蔽层的转换波成像问题，通过对转换波共近似转换点道集进行速度分析，建立了转换波叠前时间偏移的初始速度场，通过速度扫描和纵、横波速度比值扫描确定最佳的偏移速度场和纵、横波速度比值，实现了在火山岩高速层覆盖区域的转换波偏移成像。

Using normal distribution transform probability model to represent a laser range scan.Not need features corresponded,but transform the discrete scan date to the piecewise continuous and differentiable probability density function,and using Newton's algorithm to optimize scan matching,so can build the 2D global map.

利用正态分布转换概率模型来表示激光扫描，不需利用特征对应，而是通过将扫描得到的离散数据点转换成分段连续可微的概率密度函数，并利用牛顿优化算法来进行扫描匹配，从而建立2维全局地图。

In the scanning process, we have completed the Hebei Bureau of Press and Publication of all the historical archives of microfilm and digital conversion work, as part ofShijiazhuang office document scanning and PDF format conversion job, etc.; we have to scan their own processing software.

在扫描加工方面，我们已完成河北省新闻出版局所有历史档案的缩微与数字化转换工作，为信达公司石家庄办事处完成部分文件扫描以及PDF格式转换工作等；我们拥有自己的扫描加工软件。

Brerenham raised the midpoint of line scan conversion algorithm.

详细说明： brerenham提出的中点线扫描转换算法。

Multistandard digital video signal conversion is an important technology in display system of Plasma Display Panel structure with Shadow Mask.

多制式数字视频信号转换是荫罩式等离子平板显示系统中的一项重要技术，本文提出了不同制式数字视频信号扫描格式到用于SM-PDP显示的固定分辨率、帧频扫描格式转换的解决方案。

This slide used data collection during Rolling Wheel Deflectometer tests where the PPS is scanning longitudinally to demonstrate the feasibility to construct a longitudinal profile with resorting to an accelerometer to establish an inertial reference.

此页使用来自Rolling Wheel Deflectometer 测试的数据。此测试中，PPS借助加速度计设定惯性基准，并作纵向扫描以展示构造纵向轮廓的灵活性。在25厘米中收集的14次扫描被转换到三度自由上：等距的扫描控制收集，旋转和摇摆，垂直转换。

The module that is designed using the algorithm acts as the prefixal module engineering drawings intelligence input and recognition system.

并用所提出的算法构建了基于图样绘制规则的自动区域化这个图纸扫描转换系统的前置模块。

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

Finally the energy distribution of the spot was reconverted and obtained through computer processing of the measurement data.

实验中采用扫描法测量光斑的能量分布，通过柔性铰链机构带动微米级小孔以很小的步距对成像微光斑进行精确的二维扫描，用光电倍增管接收扫描采样的微弱光信号，再以低噪声的I/V转换电路和电压放大电路处理取样信号后送入计算机处理，就可准确地复原光斑的能量分布。

In this case, the transmission time is short because the symbolic representation of an animation of an animated

由于符号表示比位图表示要小得多因而传输时间也很短，但显示却要花较多的时间因为要进行扫描转换。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。