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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004 
  
Development Agency of Japan) (which was merged to JAXA 
(Japan Aerospace Exploration Agency) in 2003) provides the 
satellite image data and EORC (Earth Observation Research 
Center) provides the application software for the satellite image. 
| | 
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; FGDC 
National Mapping Division 
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Figure 1 USA Satellite Imagery Information Service 
organization 
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Figure 2 Japan Satellite Imagery Information Service 
Organization 
For the foreign cases, we can note that the information of 
satellite image is systematically managed by the government. 
For the domestic case, integrated management of satellite 
image information service is not constructed, but some 
institutes have their own search and distribution service and 
another institute. distributes their own data for the institutes 
which needs them. 
From these facts, the overall information of satellite image 
should be constructed for the efficient use of information of 
satellite image in KOREA. Though we cannot manage overall 
satellite images in Korea, this project will be the basis of the 
upcoming integrated management of satellite image information 
of Korea. 
622 
3. SATELLITE IMAGERY METADATA 
3.1 State of standard for satellite imagery metadata 
ISO/TC 211 Geographic  information/Geomatics is 
responsible for the ISO geographic information series of 
standards. For the metadata about geographic information 
metadata, ISO 19115 defines the schema required for describing 
geographic information including satellite images and services. 
It provides information about the identification, the extent, the 
quality, the spatial and temporal schema, spatial reference, and 
distribution of digital geographic data. 
ISO 19115 defines mandatory and conditional metadata 
sections, metadata entities, and metadata elements and optional 
metadata elements to allow for a more extensive standard 
description of geographic data, if required. It also provides a 
method for extending metadata to fit specialized needs. Figure 3 
shows the UML of the ISO 19115. 
  
  
  
  
  
  
   
  
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Figure 3 UML of ISO 19115 
To complement standard to ISO 19115 Geographic 
information — Metadata, “ISO 19115 Part2” define metadata 
clements to support imagery, and gridded data and extend the 
UML model for metadata: it support the collection and 
processing of natural and synthetic imagery produced by remote 
sensing and other imaging processes. 
In US, The Federal Geographic Data Committee approved the 
Content Standard for Digital Geospatial Metadata (FGDC-STD- 
001-1998) in June 1998. In Korea, TTA (Telecommunications 
Technology Association) approved the Metadata Standard for 
Geographic Information Distribution (TTAS.KO-10.0139) in 
December 2002. Since this standard add necessary items for 
distribution of geographic information to ISO 19115 which has 
target for metadata of vector data, it is necessary to add some 
items for satellite imagery information. 
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