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Showing 1 to 16 of 16 for “"ERDAS"”.
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Refinement of Automated Forest Area Estimation via Iterative Guided Spectral Class Rejection
… Class Rejection (IGSCR) was automated using the ERDAS C Toolkit and ERDAS Macro Language. The resulting program was tested on 4 Landsat ETM+ images using training data collected via region-growing at 200 random points within each image. The classified images were spatially post-processed using …
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Applications of Remote Sensing and GIS to Modeling Fire for Vegetative Restoration in Northern Arizona
… integrative procedures of using of ArcGIS™, ERDAS Imagine™, GPS, and FARSITE© to predict prescribed fire behavior on the Kaibab-Paiute Reservation. ArcGIS was used to create a database incorporating all variables into a common spatial reference system and format for the FARSITE model. ArcGIS …
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Entwicklung eines halbautomatisierten Verfahrens zur Detektion neuer Siedlungsflächen durch vergleichende Untersuchungen hochauflösender Satelliten- und Luftbilddaten
… of the widespread image processing software ERDAS IMAGINE. This allows to make the developed method available for other users, since it can easily be integrated into the working environment of ERDAS IMAGINE.
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Entwicklung waveletbasierter Kompressionsverfahren für Fernerkundungsdaten und deren Einsatz in einem Geographischen Informationssystem
… entwickelt und in das Raster-GIS Erdas/Imagine integriert. <br>FREIKOM ermöglicht eine unterschiedliche Kompression einzelner Bildbereiche sowie bestimmter Frequenzanteile und kann damit zur Bildverarbeitung eingesetzt werden. <br>Anhand von Anwendungsbeispielen aus den Bereichen …
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Mapping the forest cover of Uganda with Spot (XS) and Landsat (ETM+) images : (a case study of Bwindi Impenetrable National Park, Uganda)
… were applied to SPOT and Landsat Imagery using Erdas Imagine (8.4) and Arc View GIS software. A combination of original and derived bands (Principal Components, Tasseled Cap and Texture Analysis) was used for the image analysis. Both supervised and unsupervised classification approaches were …
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The Use of Landsat Thematic Mapper in the Study of Landuse/Cover and Water Quality Relationships
… and supervised classification were utilized in ERDAS software. Turbidity levels within the two reservoirs were estimated by the chromaticity technique and were compared to measured data from previous reports for both reservoirs. Remote sensing was successful in detecting the changes in landuse …
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A Knowledge-based approach of satellite image classification for urban wetland detection
… and relevant geostatistics. Using ERDAS Imagine software's knowledge classifier tool, the decision rules are applied to the base maps in order to identify wetlands that are not able to be detected based on the pixel-based classification. The results suggest that the knowledge-based …
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Anthropogenic Influence on Blackfin Sucker (Thoburnia atripinnis) Distribution, in the Upper Barren River System, Kentucky and Tennessee
… within 100m and 390m buffers around 41 sites and ERDAS imagine was used to create a supervised and unsupervised classification of the study area. Based on the error matrices land use/cover was classified with higher accuracy values for supervised classification over unsupervised classification. …
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Reappraising the Land Behind Baghdad: Using CORONA Satellite Imagery to Reassess the Archaeological Landscape of the Diyala Plain, Iraq
… of its camera technology and the LPS package for ERDAS Imagine was used for orthorectification. This procedure eliminates the need for camera ephemeris data or mathematical models and relies on ground control points. Google Earth was successfully used as the geographic reference. An attempt was …
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Medium-term response of lowland river reaches to changes in upland land use.
… been quantified using aerial photogrammetry in ERDAS Imagine GIS. Channel instability is shown to increase significantly between 1963 and 1976, some 15 years after upland catchment afforestation. However, upland catchment bed load yields are shown to be of low magnitude (up to an estimated …
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Registro das dinâmicas espaciais dos manguezais no baixo curso do Capibaribe
… utilizam a ferramenta Model Maker do software ERDAS Imagine 9.3. O layout final dos mapas foi realizado através do aplicativo ArcGis 9.3, enquanto as imagens foram trabalhadas aplicando-se o modelo recomendado pelo SEBAL. Para avaliar o comportamento espaço-temporal da vegetação, foram …
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Application of Ancillary Data In Post-Classification to Improve Forest Area Estimates In A Landsat TM Scene
… (VDoF) was compared to functions available in ERDAS Imagine. These filters were applied as part of the post-classification techniques. Results show there was no significant difference in map accuracies at the 95% confidence interval using the ancillary data with filters in a post-classification …
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Mapeamento e avaliação da cobertura e uso da terra no município de Manoel Urbano Acre
… processamento e tratamento de imagens digitais ERDAS/IMAGINE 8.5 (Sistema de Análise de Dados e Recursos da Terra). Realizou-se a delimitação automática das áreas de preservação permanente (APP s), tendo como referência legal, o Código Florestal e a Resolução/CONAMA nº 303. Os principais …
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An assessment of the impacts of land use changes on the Duthuni wetland stream using remote sensing, GIS and social surveying: a case study in Limpopo Province, South Africa
… was accomplished through integrated use of ERDAS Imagine (version 2015) and ArcGIS (version 10.1) software package. The themes were identified and analysed using the content analysis based on the main research topics. The results show that the land use/ cover changes have occurred at an …
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Assessing the impacts of small-holder farming activities on Wetland Area in Nzhelele Agricultural Hub in the Vhembe District; Limpopo Province, South Africa
… 10.1) and Earth Resources Data Analysis System ERDAS Imagine (version 2015) software packages. The results show that farming is the major activity within the wetland area over the years 2014 to 2022 which increased from 96 hectares to 181 hectares. Throughout the study period, there have been …
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Quantifying Chlorophyll a Content Through Remote Sensing: A Pilot Study of Utah Lake
Utah Lake is a really large but shallow lake located in the arid environment of the Western United States. Due to a variety of factors it is listed by the Environmental Protection Agency as an "impaired water body" and must be closely monitored. Because of its large extent and shallow depth the …