Artefacts such as leaning of buildings result from the processing of traditional orthorectified imagery, limiting their use in urban areas. Orthophoto production was usually limited to medium and small-scale applications: typically smaller than 1:10,000. Even in the 1990s, this market was so under-developed that line map restitution from stereo imagery was cheaper than producing large-scale orthophotos. With the arrival of digital sensors, which have a high degree of overlap and higher cost efficiency, fully orthorectified products have entered the market. The authors test the positional accuracy of fully orthorectified imagery for urban areas and suggest a product specification.
DEVOS Wim;
KAY Simon;
2006-02-15
GITC bv
JRC30741
https://publications.jrc.ec.europa.eu/repository/handle/JRC30741,
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