نتایج جستجو برای: aerial photo
تعداد نتایج: 59988 فیلتر نتایج به سال:
LiDAR has become important data sources in urban modelling. Traditional methods of LiDAR data processing for building detection require high spatial resolution data and sophisticated methods. The aerial photos, on the other hand, provide continuous spectral information of buildings. But the segmentation of the aerial photos cannot distinguish between the road surfaces and the building roof. Thi...
As digital photogrammetric system developed, we became able to measure three-dimensional objects on a generic personal computer. And recently aerial photograph is easily obtained, for example we can get aerial photograph through internet at a low price in Japan. But three-dimensional measurement using by photogrammetry is not popular. One of this cause is that digital mapping system requires ph...
Until now, visual photo-interpretation techniques combined to ground survey remains the most used method to locate and characterize landslides. New perspectives in using remote sensing for landslides location are now offered by the availability of new very high spatial resolution images and by the development of object-oriented image analysis. In this context, the aim of this paper is to propos...
The Provincia Autonoma di Bolzano – Alto Adige commissioned the bidding group GEOSIGMA s.r.l., GEOMATICA s.r.l. and Ingenieurgemeinschaft Vermessung AVT-ZT GesmbH to produce a GIS-data base of parts of their province. It was demanded to create topographic data for technical base map in the scales 1:5.000 and 1:10.000. For the data acquisition an existing photo flight of about 2.500 images was u...
In this article we use a combination of neural networks with other techniques for the analysis of orthophotos. Our goal is to obtain results that can serve as a useful groundwork for interactive exploration of the terrain in detail. In our approach we split an aerial photo into a regular grid of segments and for each segment we detect a set of features. These features depict the segment from th...
Several missions with an Unmanned Aerial Vehicle (UAV) in different realistic safety, security, and rescue field tests are presented. First, results from two safety and security missions at the 2009 European Land Robot Trials (ELROB) are presented. A UAV in form of an Airrobot AR100-B is used in a reconnaissance and in a camp security scenario. The UAV is capable of autonomous waypoint navigati...
In this contribution we show details about the large format digital aerial camera system UltraCamX. The sensor was introduced into the market in 2006. It is currently the largest digital frame camera for photogrammetric applications. The system consists of several hardware component as well as software to operate the camera during the flight mission and to process image data after the photo fli...
Three-dimensional modeling of geological bodies is a useful tool for multiple applications. Such tasks are usually accomplished starting from fieldcollected data, which typically suffer from intrinsic limitations such as accessibility constraints and punctuality of data collected. In this work, we explore the reliability of photo-geological mapping from interpretation of aerial photographs in p...
The TLS (Three-Line-Scanner) system is a new aerial camera system developed by STARLABO, Tokyo. Due to its flexibility in image and GPS/INS recording and the possibility of its mounting on different aerial platforms it can be used in a great variety of applications. We report about a project of producing 3D city models with TLS data. Essentially we have interfaced TLS data with CyberCity Modele...
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