Special UNISPACE III volume

Marsteller, Deborah

Bibliographic data

Monograph

Persistent identifier:: 856485039

Author:: Marsteller, Deborah

Title:: Special UNISPACE III volume

Sub title:: including: ISPRS Workshop on "Resource Mapping from Space", ISPRS-EARSeL Workshop on "Remote Sensing for the Detection, Monitoring and Mitigation of Natural Disasters", ISPRS-NASA Seminar on "Environment and Remote Sensing for Sustainable Development", July 1999, Vienna, Austria

Scope:: IV, 170 Seiten

Year of publication:: 1999

Place of publication:: Coventry

Publisher of the original:: RICS Books

Identifier (digital):: 856485039

Illustration:: Illustrationen, Diagramme, Karten

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: ISPRS Workshop on "Resource Mapping from Space"

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: PERSONAL GROUND STATION (PGS) SCANER - NETWORK FOR "RESURS-O" SATELLITE DATA ACQUISITION AND PROCESSING. NEW IMAGE NEURONET PROCESSING TECHNOLOGY FOR ENVIRONMENT MONITORING AND RESOURCE MAPPING. Dr. Vladimir E. Gershenzon

Document type:: Monograph

Structure type:: Chapter

International Archives of Photogrammetiy and Remote Sensing. Vol. XXXII Part 7C2, UNISPACE III. Vienna. 1999 74 I5PR5 UNISPACE III - ISPRS Workshop on “.Resource Mapping from Space” 9:00 am -12:00 pm, 22 July 1999, VIC Room B Vienna, Austria ISPRS elements (written in the image file header) every time the image is loaded into the application. The georeference correction is carried out in terms of the satellite orbital parameters and orientation (roll and yaw). 'ScanEx Catalogue Manager' application (Windows 95/NT). After an image file is ready it is passed to the Catalogue Manager application which: reads the file header and creates a record containing a set of basic image characteristics (the date, time, satellite name, type of a sensor, spectral channels, dimensions, geographical borders, brief text comment) and a description of the image file location (hard disk directory or CD volume label), creates a copy of the image (sampled with an appropriate step) in JPEG format for quick-look purposes. The records and image copies are organized as a data base supported by the Catalogue Manager. A user can enter any combination of requirements to images (time interval, satellite, sensor type, geographical region, comment keywords) into the application and get a list of image files which meet the requirements. Afterwards, he can immediately get the file annotation and the image reduced copy. If the user is interested in the image details the application asks to insert a CD with the specified volume label and calls ScanViewer. The Catalogue Manager also provides support for remote users. They can work with the catalogue in the same manner as local users do. To keep their local copies up-to-date catalogue manager can synchronize data bases through the Internet. On our Home Page http://scanex.ss.msu.ru All who can be interested to get the information from Resurs-Ol satellite can do the order through Remote ScanEx Catalog: to select the images by date, region, quality (looking through the quicklooks) and then to fill in the query form. “Image Transformer” application (Windows 95/NT). Performs the geographical transformation into geographical projections (Longitude/Latitude, Merkator, Lambert, Polar- Stereographic. Gauss-Kruger, UTM on the basis of Krassovsky- 1942 and WGS84 ellipsoids) and precise georeference correction of images and exporting images into GIS formats (BIL Raster (*.bil) format, Maplnfo Raster (*.tab) format. RasterX Raster (*.bgp) format, BMP). The application Image Transformer give the possibility of the wide range of users to transform the images, received from Resurs-0 into geographic projections, to perform th e precise georeference correction of images and to export images into GIS format. “ScanEx NeRIS” application for thematic raster image processing (Windows 95/NT). The newest software development of R&D Center ScanEx is the application for thematic image interpretation ScanEx NeRIS, based on neural networks. Capabilities of the ScanEx NeRIS software: assessment the number of classes (clusters), required for thematic description and thematic map development; estimation of internal heterogeneity of thematic objects; distribution of object’s features in model feature space; estimation of the probability of thematic object presence in selected scene’s area (classify ing of scene’s area in three categories: optimistic, realistic and pessimistic); hierarchic classification and estimation of interclass (cluster) distance (user-friendly interface for distance tree processing) for correction of legend and geographic content of thematic map; developing of thematic-oriented neural networks for raster processing and thematic object identification; merging (graphic overlay) of data from different scenes; image re-digization for resolution improvement and better visualization; vectorization of intraclass (intraclaster) processing results; software products are compatible with coordinate system of basic map projections; export of raster covers and vector layers in exchange format of well-known GIS. The advantages of neural-based algorithm over a classical raster processing algorithm: it is ready against feature space changes in scene (scene’s area and scale changes); it is tolerant to standardization requirements (sun angle, atmospheric aberration); it is easy to correct in case of task changes; it is simple for further application as a standard for object identification. And the main ScanEx NeRIS application advantage is an interpreter can assess the results at all phases of automatic image processing. Thanks to a simple user-friendly interface the software package can be operated by geographer, geologist, ecologist-thematic map specialist, and not only by interpreter- specialist in digital image analysis. A technological chain of creating and pre-processing satellite images with ScanEx ground stations Besides ScanER, Research and Development Center ScanEx produces also personal stations for conventional (for personal systems) data formats and satellite series, and among others - ScanEX station for NOAA HRPT. Of course, parameters of these systems - a carrier frequency, signal bandwidth, modulation type, data rate, antenna beam

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