805 
: assumed that 
dll be carried 
rors it has 
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Is (the 
ly) and does 
: use of 
>es of change 
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CAMERA 
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REFERENCES 
De Bruijn, C.A. (1981). Analyzing Urban Development 
Issues using Sequential Land Use Data and a 
Geodatabase: A case study from Limburg, the 
Netherlands. Paper Harvard Computer Graphics Week 
1981, Boston 
De Rruijn C.A. (1983). Urban Airphoto Interpretation 
in a Geodataprocessing environment. Proc. 4th 
Asian Conf. on Remote Sensing. Nov. 10-15, 1983, 
Colombo, Sri Lanka 
Chrisman, N.R. (1986). Effective digitizing: 
Advances in Software and Hardware. In: Proc 1986 
ACSM-ASPRS Conv Vol. 1 pp 162-171 
Dwyer, C.B. (1985). CAD/CAM & Digital Image 
Acquisition: Advance Textile Market. In: Computer 
Technology Rev Fall 1985 pp 159-162 
Fain, M.A. (1985). Automatic Data Capture With AI. 
In: Computer Graphics World 85-12 pp 19-22 
Harris et al. (1982).A modular system for 
interpreting binary pixel representations of line- 
structured data on maps. In: Cartographies 19/2 pp 
145-175 
Konecny, G. (1979). Methods and Possibilities for 
Digital Differential Rectification. In Photogr. 
Eng. and RS 45/6 pp 727-734 
Leberl, F.W. (1982). Raster Scanning for Operational 
Digitizing of Graphical Data. In: Photogr. Eng. 
and RS 48/4 pp 615-627 
Meisner, D.E. (1981). A low cost automatic line 
follower system for map encoding. Paper Harvard 
Comp. Graphics Wk 1981, poster session, 7 p 
Nagy, G. (1981). Criteria for selecting automatic 
digitizers (optical scanners). Paper Harvard Comp 
Graphics Wk 1981, session #11, 27p 
Peuquet, D.J. (1981). An examination of techniques 
for reformatting digital cartographic data/part 1: 
the raster-to-vector process. In: Cartographica 
18/1 pp 34-48 
Tomlinson, R.F. (1980). The handling of data for 
natural resources development. In: Proc. Wkshop 
Information Requirements for Development Planning 
in Developing Countries 1980, ITC Enschede. 
>layed (if 
ickground to 
'kstation. This 
ich data or for 
i enables also 
pretation 
This can be 
ire used to 
and recreation 
l double 
>rgotten cases. 
■gital 
Using the 
:r this is 
ited already by 
mer with a 0.1 
ition output, 
is can be 
ier printers 
) points/cm 
:vels. An 
it of the 
used as field 
;em are still 
i had to be 
approach is 
item can be 
lg the 
ita processing, 
i ITC. 
where low-cost 
¡vices are 
ibable that 
able impact on 
>n and its 
tents. 
Fig. 1 Example of an interpretation overlay