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The paper analyze the key technology of low-altitude UAV aerial photographic system in island topographic mapping, including exposure control auto excursion angle rectification and exposure point calculate by differential GPS and the flight plan considering the characteristic of island and so on. Then give a typical example of the island photography and topographic mapping. The results present that the UAV aerial photographic technology can satisfy the island topographic mapping at large-scale with only a few control points, which fills the blank of Chinese island topographic mapping.
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Li et al. (2011) studied this question.