投影

Keywords polarization;polarimetric SAR;classification;projection index;wavelet-kernel estimation;Bootstrap estimation;sequential projection pursuit cluster model;projection pursuit wavelet learning network;mix

Article From 西北工业大学；计算机科学与技术博士论文 2007年度极化；极化合成孔径雷达；分类；投影指标；小波估计； Bootstrap估计；序列投影寻踪聚类模型；投影寻踪子波学习网络；混合Wishart模型

So, with the function, the phase shift method can not only reduce the effect of fringe error and non sinusoidal irradiance function, but also impr.

考虑到光栅投影测量中可能出现的标定误差、投影光非正弦模式以及其他干扰因素，在该函数中加入对这些干扰的纠正值，从而减少由这些干扰产生的不利影响，进一步提高投影光栅和对象测量的精度。

Point, line, plane and other geometric elements in space can be expressed by stereographic projection according to their spatial direction and occurrence; at the same time the author can read the orientation and attitude from the stereogram, so it can be used in rock mass engineering geology widely.

赤平极射投影可表示空间上的点、直线、平面等几何要素，根据它们的空间方向和产状可以作出赤平极射投影图，同时，可以根据赤平极射投影图，测读它们的空间方向和产状，因此在岩体工程地质学中得到广泛应用。

By the data in the images from the two frequency grating projector , the absolute phase at each pixel is then unwrapped by comparing the two wrapped phases and it is suit for the great craggedness of the measurement object.

在光学投影栅线法测量物体三维轮廓理论的基础上，本文提出了双频投影栅线法物体轮廓测量技术，通过两种不同频率的光栅投影图，能够直接得到包含物体高度信息的绝对相位值，能够实现具有陡峭边沿物体的测量，实验结果表明，利用该方法能够显著提高物体轮廓测量精度。

These suggest that the xenocrysts were captured by the enclave magma from the host magma. On diagram of total alkali vs. SiO〓(Middlemost, 1994), most samples of the host rocks plot within the area of diorite, the samples of the quenched margin plot within the area of gabbro-diorite and the samples of the enclave plot within the area of diorite.

在Middlemost(1944)提出的侵入岩全碱-SiO〓分类图解中，寄主岩的投影点落在花岗闪长岩范围内，淬冷边的投影点落在辉长闪长岩范围内，而包体的投影点大都落在闪长岩区。

After cuboids have projected in all image and marked, the black cuboids are the 3D entity of dental casts.

把体素投影到二维照片上，投影在背景区域的体素标记为白色，投影在牙齿模型区域的体素标记为黑色。

Dynamic focus voltage error of projection display system was studied in this article. Parabola dynamic focus method, projection tube shape and optics processing were analyzed.

从投影显示系统典型的动态聚焦方法与投影管特殊的荧光屏结构以及光学处理等方面对投影显示系统的动态聚焦电压误差进行研究。

In this paper,some equivalence properties of one-valued selection under the set-valued mapping is introduced and give a sufficient and necessary condition of set-valued mapping being a metric projection.

介绍了集值映射的单值选择的几个等价性质，并给出了集值映射成为度量投影的一个充要条件。结果将度量投影情形推广到了集值度量投影情形

Personally think that this design of the great clock, it can projector to the wall clock, but the voice is, if like to look at sleep time, as long as the pat hand, you'll see a projection clock, Zaipai clapping, projectors shut down automatically.

个人认为这个时钟设计的非常棒，它可以向墙上投影时钟，而且是声控的，晚上睡觉如果想看一下时间，只要拍拍手，就会看到投影时钟，再拍拍手，投影自动关闭。

An accurate and well-adapted simulation method of projection data for cone-beam CT, which can describe the details of each tomography, is proposed in this paper.

在重建算法的研究过程中，模拟投影数据是必不可少的一部分，一方面可以避免实测投影数据的误差，为后继CT重建算法提供理想的投影数据；另一方面也可以根据需要有选择地模拟失真如：探测器偏移、旋转、响应不一致，射线源

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。