Full text: Mapping without the sun

THE RESEARCH AND ESTABLISHMENT OF IMAGE DATABASE SYSTEM BASED ON 
ORACLE 
Li Lanyong 1 , Song Weidong 1 , Chen Zhaoliang 2 , Zhao Hongfeng’ 
1. School of Geomatics, Liaoning Technical University, Fuxin, Liaoning, 123000, China 
2. Shandong Province Jiaozhou City Planning Bureau, the Planning Institute,Jiaozhou,Shandong 266300 
3. Designing Co., LTD. of Dalian water supply group, Dalian 116021, China) 
E-mail: 1 lilanyong@sohu.com; 2 song_wd@163.net 3 zhao-hf@eyou.com 
KEY WORDS: Oracle database, Image database system, Image pyramid, Image block coding,VC, Visualization 
ABSTRACT 
In the GIS application of road, railway, power line designing, and so on, it is hardly to satisfy the needs of quickly browsing and 
querying great range imagery. According to this problem, this paper established a remote sensing imagery database based on Oracle, 
which is managed by expending relationship. This paper establishes a remote sensing imagery database utilizing imagery of one 
region, and takes this database as an example. At first this paper analyses the managing categories and developing methods of remote 
sensing data, and selects the Oracle database and VC as the development basis of the image database system. Then this paper 
discusses some key technologies in the establishment of imagery database system, including partitioning, coding and index of image 
block, query and visualization of image, updating of image data. Finally this paper designs and constructs the prototype of the 
imagery database system. 
1. INTRODUCE 
With the development of computer technology, GIS, remote 
sensing and digital photogrammetry, the application of remote 
sensing images have a broader prospect. Traditional GIS as a 
integrated information system of acquisition, processing, 
storage, management, performance and analysis geospatial data 
and attribute data, spatial data managed by it is vector data 
mainly. With the in-depth application of GIS, image data in the 
entire field of geographic information system applications 
becomes more extensive. Information-rich, wide coverage and 
economy, convenience and quick gain are the advantages of 
image data. Currently, Most of the commercial GIS software 
can make image data as a background image set with vector 
data to show output. But sometimes looking a map(image file) 
as a object to treat the target can not meet the need of practical 
applications, such as GIS applications in highways, railways, 
electricity survey design, fathering rivers and lakes. If we can 
establish a number of image data into a seamless image 
database, the problem will be satisfactorily resolved. Along 
with the rapid growth of the image data , it will bring 
difficulties to the image storage, management and data 
distribution. It need to establish a database of image data to 
manage efficiently. 
2. IMAGE DATA MAGAGEMENT AND 
ANALYSIS PLATFORM 
2.1 Methods of image data management 
Currently the methods of image data management can be 
divided into three categories: based on the file management , 
the document and database management Mixed , based on the 
database management . Database management can be divided 
into relational database management, object-relational database 
management, Object-oriented database management. 
From the current research and applications, Based on the 
commercial database data and information management is the 
development of data management and the inevitable trend of 
the mainstream. Image database management which is based on 
extended relational database stores image data in binary 
variable length field, then applications access image data in a 
database by data access interface, at the same time image data’s 
metadata information is also stored in a relational database 
table, the two can be managed seamlessly. 
2.2 Adopt the application method with VC development 
which is based on Oracle database 
A database application environment can be divided into the 
desktop database system and the server database system. The 
former includes Microsoft Access, Foxpro, FileMaker Pro, 
Paradox and Lotus Approach etc. The latter includes Oracle, 
SQL Server, DB2, Sybase, Postgres and Ingres, etc. To meet 
the Image Database Management System research and 
development, database platform will choose from server 
database system. At present Oracle has a powerful information 
management capabilities to handle large volumes of data. It has 
full functional system. It is perfect in security management and 
data recovery mechanisms. In large and medium-sized 
management system, in particular the GIS and image 
information management systems development, Oracle 
Database adapts to the large storage capacity, high speed data 
requirements. At the same time, Oracle is due to be a 
cross-platform system, but also provides a lot of alternative 
development methods. VC-based development platforms 
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