栅格地图 meaning in English
raster map
Examples
- A method erasing noises on raster map based on extension character
基于外延特征的栅格地图噪声去除算法 - Digital products of fundamental geographic information 1 : 10000 , 1 : 50000 digital raster graphics
基础地理信息数字产品1 : 10000 1 : 50000数字栅格地图 - First , the basic principles of geometry rectification of digital aerial images and raster relief map are introduced and thus the accuracy of geometry rectification is improved
首先，重点阐述了数字航空影像几何纠正，以及栅格地图变形纠正的基本原理，进一步提高了几何纠正的精度。 - And it doesn ’ t search for the path in the whole space which overcomes the shortcomings of the grid - based representation that the real - time property will get sharp decline as the space enlarges
并且该算法不进行整个空间的搜索,避免了栅格地图规划法常见的随空间增大实时性急剧下降的缺陷。 - The constitutions and principles of position of gps > glonass and beidou navigation system are described all around in this article , and the following technologies are studied and realized : communication between com ports with oop technology , compound navigation with gps and glonass . calculate velocity , pseudorange difference , smoothing pseudorange with the carrier - phase and models to correct error are also done ; the transforms between wgs - 84 and pz - 90 , as well as wgs - 84 and beijing54 coordinate system ; the technologies to display and manage bitmap , vector map based on mapx also ; conversion of data formats between gjb and mif data format of maplnfo corp . arithmetic of creation dem data based on contour line data from 1 - . 25000 map data with gjb format . texture the surface of terrains with corrected aviation image
本文全面介绍了gps 、 glonass 、北斗导航系统的组成、定位原理，研究并实现了面向对象的串口通信技术、 gps + glonass组合导航、测速及伪距差分、相位平滑伪距差分以及有关误差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐标系的坐标转换、栅格地图的显示和管理、基于mapx的矢量地图的显示和管理、 1 : 25万军标数据和mapinfo的mif数据格式双向转换、基于军标数据的dem生成算法、基于opengl的三维地形构造、航空图像纹理地形表面、三维坐标量算、虚拟现实模拟导航、三维地形的层次细化算法以及数字图像处理中的图像增强、几何变换、影像匹配等技术。