surface contour map 中文意思是什麼
surface contour map
解釋
等高線地形圖-
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
本文全面介紹了gps 、 glonass 、北斗導航系統的組成、定位原理，研究並實現了面向對象的串口通信技術、 gps + glonass組合導航、測速及偽距差分、相位平滑偽距差分以及有關誤差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐標系的坐標轉換、柵格地圖的顯示和管理、基於mapx的矢量地圖的顯示和管理、 1 : 25萬軍標數據和mapinfo的mif數據格式雙向轉換、基於軍標數據的dem生成演算法、基於opengl的三維地形構造、航空圖像紋理地形表面、三維坐標量算、虛擬現實模擬導航、三維地形的層次細化演算法以及數字圖像處理中的圖像增強、幾何變換、影像匹配等技術。 -
The main content of this dissertation includes the processing of the distillation of the contour line from the paper map and the design of the b - spline surface interpolation for the scattered data
主要內容涉及了從紙地圖掃描圖像中提取等高線的實現方法和步驟，以及基於等高線的b樣條曲面插值的方案設計和演算法實現。 -
Using latest visual software idl ( interactive data language ) and combining trigrid function with triangulate function in idl, regular network terrain model and 3 - d shallow and deep sliding surface model of zhafangping landslide body based on delaunay triangular network is set up. it makes the sliding surface turn from " recessiveness " into " dominance ", and gets numerous different three - dimensional cubic chart, contour topographic map, the combine model of terrain model and contour topo - graphic map. and every visual model has analysed and compared in detail
利用可視化軟體idl中的triangulate函數和trigrid函數相結合，建立了基於delaunay三角網的榨坊坪滑坡體規則格網地面模型和淺層、深層滑動面三維可視化模型，實現了該滑坡體的三維模擬與再現，使滑動面由「隱性」變為了「顯性」 ，且獲得了眾多不同角度的三維立體圖、等高線地形圖和地面模型與等高線地形圖的組合圖等，並對各可視化模型進行了詳細地分析與比較。 -
In this paper, based on the matching among the parameterized contour feature, a 3d lunar surface reconstruction method is proposed. the reconstruction method is a stereo vision - based modeling method, in which the contour feature of the characterized object is extracted from the lunar surface stereo - images, and the objects ’ geometric information is inferred according to the correspondence between the parameterized contour features, therefore, the digital lunar map is constructed
本文提出了一個基於參數化輪廓結構特徵匹配的月面三維重建方法，該方法基於計算機視覺技術，從月面立體圖像中提取特徵物的輪廓特徵，通過參數化輪廓特徵匹配恢復特徵物的三維信息，從而建立三維月面地圖。 -
First in chapter 1, we introduce the background of the 3 - d digital terrain map, discuss the resolution of the data source of the 3 - d digital map and propose an idea that retrieving 3 - d data with b - spline surface interpolation based on the contour line distilled from paper map
首先在第一章中介紹了三維電子地形圖系統的研製背景，簡要介紹了解決目前三維顯示數據來源的方法，提出了從紙地圖的等高線提取三維數據的思路，並對整個方案的實現框架作了簡要的介紹。
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