ISPRS Workshop on Service and Application of Spatial Data Infrastructure, XXXVI(4/W6), Oct. 14-16, Hangzhou,China 
Field 
name 
Data type 
Length 
Descriptio 
n 
Land ID 
Num. 
10 
Key field 
Land 
property 
Text 
10 
State, 
collective 
Land 
use 
Text 
10 
Greenbelt, 
etc. 
Table 3. Land information table 
Field 
name 
Data type 
Length 
Descriptio 
n 
Building 
ID 
Num. 
10 
Key field 
Building 
area 
Num. 
10 
First floor 
area 
Perimeter 
Num. 
10 
Building 
perimeter 
Table 4. Building information table 
Field name 
Data type 
Length 
Description 
Serial 
number 
Num. 
8 
Key field 
Householder 
Text 
10 
Dismantling 
householder 
House 
address 
Text 
20 
Family 
address 
Table 5. Dismantling information table 
3.3 Relationship between Attribute Database and Spatial 
Database 
The spatial database and attribute database were put in the 
database in different forms separately, but they are related. Each 
layer corresponds to one attribute data file with which to 
describe the geographic information elements, and every 
element in the layer corresponds to one record of the attribute 
data file, the layer unit ID is a key field of the attribute table, the 
link of the attribute data and spatial data is just depend on this 
key field. So we can easily search attribute data by clicking the 
layer, and also we can locate a position by the attribute data, 
that is layer and attribute bi-directional query. 
4. APPLICATION AND EXAMPLE 
The system background image is taken in year 2000, a kind of 
1/2000 digital orthographic image Taiyangong Beijing. The 
aerial RS image is the sources of the spatial data obtaining, the 
base of the visual query and spatial analysis. All the vector 
layers come from the image by ERDAS imagine. The 
background image is taken as a basic layer of the ESD of real 
estate GIS, it can be superposed with GIS vector layer. If doing 
so, it deals with two technical problems. The one is how to 
display the raster background image and vector data at the same 
time in the memory? And more, is that zooming and roaming 
with the same scale. The other is location or matching of the 
raster image and the vector layer. We have a better solution for 
these questions, and developed the ESD real estate GIS. 
Figure 2. ESD real estate GIS 
5. CONCLUSIONS 
In this paper, the aerial RS image based ESD real estate GIS 
information query system, has a character of low developing 
cost, short constructing period, and better practical function in 
the area of old city district and the joint of urban and 
countryside. Based on the image to obtain spatial data of GIS, 
the raster image and vector layer has the best matching in the 
integration environment system. It is propitious to GIS analysis 
and query, to find unconformity data and settle dissension 
problem in time. But the system also exists shortage, such as: 
network analysis, 3D analysis, high quality map printout, and 
large memory is needed, etc. 
REFERENCES 
Chen, G.L., Wu, L.X., Li, Q., Han, G.J., Ying, W„ 2003. 
ComGIS and its application in real estate information query 
system development. Journal of Beijing Electronic Science and 
Technology Institute, 11(1), pp. 27-31. 
Dang, A.R., Wang, X.D., Cheng, X.F., 2002. ERDAS imagine 
Remote Sensing Image Processing Methods. Tsinghua 
University Press, Beijing, pp. 18-58. 
Fang, H.L., Zhang, J.T., Liu, W.G., 1998. Remote Sensing 
Image Processing. Institute of Geographical Sciences and 
Natural Resources Research, CAS., Beijing, pp. 28-38. 
Fan, C.Y., 2001. Evidence Law. Law Press, Beijing, pp. 165. 
Liu, G., 2003. Geographic Information System Development 
Course. Tsinghua University Press, Beijing, in full.