查询词典 Dem.

Taking the topographic map (1:50,000) in 1980 as the common base, the series of Landsat TM/ETM+ images that we used in the research are reprojected to the same coordinate system. Then all data sets were orthorectifed based on the 1:50,000 scale DEM, and were accurately co-registered to the topographic map with an accuracy of 1.0 pixel.

以地形图为基准，将陆地资源卫星系列遥感影像(Landsat TM/ETM+)统一坐标系，并基于1：250，000 DEM逐像元进行正射校正，再配准，配准误差控制在一个像元以内。

We study a new method of building up the multi-scale subspaces of DEM.

提出了实现多尺度DEM模拟的基本思想。

In order to extract area with slope angle larger than 45 degree, firstly, we have to build a DEM model with 20m resolution from contour line with 40m interval.

为了找出坡度大于45度的精确区域，我们首先根据40米间距的等高线创建了20米分辨率的DEM模型，然后使用栅格分析下的'坡度图'功能来获取每一栅格的坡度角。

The experiment results show that the three methods have excellent performance in multi-scale representation of DEM data.

实验结果表明，这些模型和方法对DEM的多尺度表达效果非常明显。

In this paper, from a new method and perspective, discuss and study the Relief Automated Generalization based on DEM.

本文从新的方法和角度出发，对基于DEM的地貌自动综合进行了研究探讨。

At last, a new study frame about watershed distributed hydrological model based on DEM was put forward.

最后，提出一种基于DEM的流域分布式水文模型的研究框图。

Based on software platform-Creator, the method of simulating large terrain scene using the data of DEM was researched.

基于软件平台Creator软件研究了利用DEM数据产生大地形场景的方法。

This paper mainly studies display and the application of MapObject based regular grid DEM.

主要研究了基于M apOb ject的规则格网 DEM的显示以及其应用。

A new consistency representation model of multi-scale DEM is put forward.

研究了多尺度DEM表达序列空间的构建方法。

The chapter two is the basic theory of wavelet analysis applying to multi-scale representation of DEM.

第二章为小波分析应用于DEM多尺度表达的基本原理。

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。