The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
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Point-Selecting, Stone-burying, Observation, Calculation. 
2.2.2.1.3 Four Class Level Observation 
2.2.2.2 Photo Control Surveying 
Photo control surveying mainly includes: photo control points 
arrangement, numbering, punch points selecting, grooming, 
surveying. 
2.2.3 Aerotriangulation 
All our indoor aerotriangulation is full digital 
aerotriangulation. The full digital aerotriangulation provides 
reliable high quality orientation points for field elevation points 
surveying, plane points checking, aerotriangulation and data 
collection. 
2.2.4 Acquiring All Topographic Elements Data under Full 
Digital Photogrammetry System 
With Microstation software platform support, data collection 
process is based on SSK,DMS,JX-4C full digital 
photogrammetry workstations. Planimetric features acquiring 
will be done based on models and according to the 
corresponding elements classification rules, and then data files 
will be generated in DGNYDWG format. 
2.2.5 Field Investigation and Surveying, Supplement Surveying 
Referring to collected data, we open paper map. According to 
the corresponding project field technical specification and 
denotation methods, in field spot, we define the attribute of the 
features, acquire place names, and make supplement surveying 
for hidden features as well as new features. 
2.2.6 DLG Data Editting 
In DLG data editing, on the basis of full digital collected 
graphic data and according to the project plot specification, the 
indoor operators do map grooming with the comparison to the 
field investigation and surveying. The operators do some 
processing work like topographic features grooming, 
symbolization, building eaves correction, adding notes to layers 
and structure attributes, road grades classification, vegetation 
symbols filling, linear symbols designing, hues classification, 
various name noting, attribute connection. Through this 
processing, the beautiful map is achieved, which is ready for 
database inputting. 
need of DOM rectification, we shall generate a set of DEM data. 
Therefore, through elements filtering and extraction, the real 
land elements (breaklines, terrain characteristic) will be 
extracted. Then, with certain calculation and interpolation, 
DEM or DTM of various types and software formats will be 
generated (Picture 5). 
2.2.8 DOM Data Production 
2.2.8.1 In Orthopro modules,according to DEM file we make 
orthophoto rectification for the photos with defined exterior 
elements. 
2.2.8.2 With I/RASC, we check the rectified images. 
2.2.8.3 We do color balance processing with professional color 
balance software, to make the whole project area symmetrical 
and consistent in color. 
2.2.8.4 After color balance processing, we do image mosaic 
with I/RASC. 
2.2.8.5 In photoshop, we check and correct the images. 
2.2.8.6 Uploading Vector Data 
In digital orthophotomap delivery, besides image data, photo 
frame, coordinates system, production unit, place name, 
elevation information shall be delivered. 
2.2.9 GIS Database Establishment 
With information modernization improvement, clients become 
very demanding. They do not only require graphic data for 
urban or rural planning, engineering designing, but also require 
GIS database for easy inquiry, analyzing, counting. For land 
resources investigation projects, the clients’ demands on 
database, which require beautiful plot effect and perfect 
database, are particular high. From DGN via FME to 
ARCGIS,MAPINFO, from DGN via DXF to MAPGIS,from 
DGN via main procedure, ARSC’s database production mode 
automaticly introduces CASS,KISS different conversion 
schemes. These schemes are widely applied in various 
surveying projects, such as Field Information Management 
System, National Land Resources Information Management 
System, and City Planning Information Management System. 
(Picture 5) 
3. THE CONCRETE APPLICATION CASES AND 
ACHIEVEMENT 
In view of the thesis length, the following cases are only from a 
few recent years project achievements. 
2.2.7 DEM Data Extraction 
After full digital topographic map collection, in view of the