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Roof segmentation, i.e. separating building roofs, is a key step in deriving building models as it directly influences the precision and accuracy of the final building models. Even though various segmentation methods have been proposed, convincing and completing evaluations of the segmentation results are rarely discussed. This paper proposes several approaches to provide quantitative evaluation of...
ADS40 from Leica Geosystems is a new-type airborne digital camera. Nowadays, it has aggregated worldwide focus in application fields of aerial photogrammetry and remote sensing with its distinct works in interpreting and mapping of comprehensive ground surface conditions. So far, although a systematic technical routine for reconstruction of large-scale 3D building models with solutions of photogrammetry...
There are many methods in building local geomagnetic field, such as polynomial method, interpolation method, Spherical Cap Harmonic Analysis and Rectangular Harmonic Analysis. Curve Surface Spine Function and Multi-surface Function are two interpolation methods. The model based on interpolation passes each node compared with fitting method. It can be proved that the interpolation method can get more...
How to effectively monitor water quality of Coastal and inland waters by optical remote sensing has always been a difficulty. This study develops a neural network model to improve the accuracy in monitoring water quality of Lake Taihu, China, a large shallow subtropical lake. A three-layer back-propagation neural network is built up to estimate concentrations of chlorophyll-a, total suspended matter...
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