investigation and monitoring of the displacement field derived from deformation is among the important studies in earth science and geophysics topics, which plays a main role in the prevention and praxeology of natural disasters such as earthquake, subsidence, land slide et cetera. here we can mention the several methods in geodetic measurement and deformation monitoring such as spirit leveling...

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to da...

This article presents the geomorphological mapping of Kalamas river delta in Thesprotia (Epirus, north-western Greece). The (also known as Thyamis) is one three main deltas this region. Detailed was performed through analysis field surveys and interpretation old maps, satellite images, aerial photos, DEM. evolution well its current morphology derives from complex interactions between alluvial, ...

Abstract. High-resolution optical satellite sensors, combined with dense stereo algorithms, have made it possible to reconstruct 3D city models from space. However, these are, in practice, rather noisy and tend miss small geometric features that are clearly visible the images. We argue one reason for limited quality may be a too early, heuristic reduction of triangulated point cloud an explicit...

Earthquakes are one major cause for the loss of many lives and properties in many regions around the world. In this project we develop algorithms based on aerial images and neural networks to better assess the risk of earthquakes for buildings. The algorithm consists of two major parts: extraction of buildings footprints from aerial photos and classification of structure type with neural networ...

there have been different indices identified for desertification. among these is technogenic desertification index which seems much more efficient. in this study, some of technogenic desertification indices were studied and evaluated. first land use maps of the region were taken from irs-pan satellite image and aerial photos analysis. after evaluating the area of different uses, lands that had ...

American Entomologist • Winter 2008 Unlike pathway and multiaccess keys, which use diagnostic morphological characters, NemaScope uses point-and-click visual matching that allows users to navigate through a collection of images until images similar to specimens under investigation are found. High-definition multifocal images of genera provide the basis for the initial photos and can be viewed w...