Fast conversion method research on the coordinate system of map data in Hangzhou city;
杭州市地图数据坐标系统快速转换方法研究
The paper introduces the aim and technique of map data update.
文章介绍了地图数据更新的目的和方法,以及数据增量探测与数据更新技术的关系。
The function of a center of data exchange is analyzed,the ArcSDE is introduced which have powerful capability in deal with map data contained spatial data and attribute data.
在城市的规划和建设中,地图数据的整合与交换有着非常重要的作用。
An ECG image is constructed automatically and coding data map is created based on the information of cardiac cycles.
通过模极大检测和循环匹配识别R波特征,自动构建ECG图像,并根据心动周期信息制作编码数据图,之后对ECG图像进行一维离散小波变换和带截止区均匀量化,量化系数被分解为重要位置图、符号流、最高位位置流和剩余比特流,最后结合编码数据图进行基于Context模型的自适应算术编码。
new type of language,the Map Query Language(MQL) for the map database basedon a hierarchical relation model is proposed.
提出一种新型的地图数据库语言ＭＱＬ，它是传统的标准ＳＱＬ语言的扩充。
Simultaneously,the thesisexpatiates on system frame,getting and treat with,saving and management of map database on the flat of Oracle9i,and discusses function of integration mode based on 3S-technology and DBMS to imp.
针对地图数据库建设中存在的数据更新、数据组织的效率问题,提出采用3S技术与数据库系统一体化集成的新模式,以实现地图数据的快速更新、合理组织、存储和管理;阐述了以Oracle9i作为数据库平台所构建的地图数据库的体系结构、数据的获取与处理、数据的组织与存储;论述了3S技术与数据库一体化集成新摸式对提高数据利用效率的作用。
With an analysis on the map data and business needs of Guangdong Province,this paper proposes establishing a fundamental map database based on distributed database,and on this basis,six subsystems were established.
通过对广东省地图数据、业务需求的分析,提出建立以基础地图数据库为主的分布式数据库,在此基础上,建立六个子系统,各子系统基于数据集成为一个集地图数据管理、地图审核制作、地图信息发布于一体的,具有C/S、B/S两种网络结构的信息系统,实现了广东省地图业务的信息化管理。
Digital maps of 1 to 1000, 1 to 5000 and 1 to 20000 scales are available for sale to the public.
1：1000比例、1：5000比例及1：20000比例系列的数码地图，已公开向市民发售。
Note: The information collected in the Digital Map Data Order Form will be used for the purpose of processing the Order only.
注:数码地图资料订购表格内收集的资料只会在订购过程中使用.
The Designation and Application of City Grid-Coordinate Digital Map(CGCDM) Based on Geographical Information Systems(GIS);
基于GIS的城市网格坐标数码地图（CGCDM）的设计与应用
digitization of a map
把地图上的资料转为数码
On the Status and Function on Digital Photograph in the ‘Picture Reading Era’
论数码摄影在“读图时代”的地位与作用
digital picture library
数码图形库《计算机》
digital point processing
数字点处理 -图像编码的
Bitblt() Function and Mask Picture Making;
Bitblt()函数与掩码图像制作
The Method as well as Its Application to Build Digital Topographic Maps into Database Based on Geographic Feature Encoding
基于地理要素编码的数字地形图入库方法及应用
Realization and Use of Geographic Feature Code Based Method of Converting DLG into Geodatabase
基于地理要素编码的数字地形图入库方法实现及应用
But don't get carried away with digital zoom statistics, the technology can lead to a loss of image quality.
但也别被数码变焦镜头的这些数码搞得高兴地昏了头，它同时也会导致图像失真。
digital library
数字化图书馆,数字图书馆,[台]数字图书馆,电子图书馆,[港]数码图书馆
Application of Digital Image in Large Scale Topographic Map Survey
利用数码影像进行大比例尺地形图测绘的应用研究
Howto organize the wavelet coefficients effectively is pivotal to theperformance of image coding based on wavelet transform.
对于小波图像编码，如何有效地组织小波域系数是提高图像压缩效果的关键。
Transformation between spectral coefficient map and d_j-map based coding of 0-1
谱系数图与d_j图在0-1编码空间的图形互换
Digitization or vectorization of analog graphics such as company logos can also be covered in our service scope.
我们同时提供数码绘图服务，把一些传统图像数码化，例如公司标志。
White Horse Is Not a Horse──Talking about the Boundary Line between Digital Images and Engravings;
此码非马──论现代数码图像与版画的界线
Depended on common digital camera, the paper presents the digital image correction and sewing technique of the catalogue system for tunnel, and concentrates on the four essential problems concerned with DIP.
本文研究基于普通数码相机的地质编录方法数字图像的校正和拼接技术。