The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This project was motivated by the threat caused by the emerald ash borer, which is spreading across several regions in North America. Mapping of ash trees is an important step in the preparation for a possible infestation of this frightening insect pest, which can destroy endemic ash stands. In this research, the potential of WorldView-2 and 3 images was analyzed to identify ash trees. The study area...
For a long time, the available global products of the urban area extent were limited to a coarse spatial resolution, e.g., Moderate Resolution Imaging Spectroradiometer (MODIS) global land cover (GLC) 500-m data and European Space Agency GlobCover 300-m data. This limitation was broken by the GlobeLand30 data, which is the world’s first 30-m resolution GLC data set. However, detection accuracies of...
Land use and land cover change (LUCC) is necessary to explore the factors leading to heavy drought and rainy-flood disaster in some districts of Sichuan province. A method based RS, GIS, GPS and Google earth (GE) is presented to establish LUCC database in Sichuan province and Chengdu district. At first, LUCC is interpreted based on the new temporal images and the land use and land cover database from...
This paper outlines the WUDAPT (World Urban Database and Access Portal Tools) concept and highlights progress to date in developing this database for cities around the world. The next steps in the WUDAPT project are outlined, both in the immediate and longer term. Ultimately the goal is to provide an open access resource on urban morphology, materials and metabolism for all major cities that can be...
As the retrieval entrance, description of retrieval objects plays an important role in CBSIR (Content-Based SAR (Synthetic Aperture Radar) Image Retrieval) systems. Most of the CBSIR systems take one Region of Interest (ROI) from the original image, which contains the retrieval object, as the retrieval entrance. Besides, freehand sketch retrieval methods are used extensively in CBOIR (Content-Based...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.