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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Comparison Of Pixel-Based Versus Object-Based Land Use/Land Cover Classification Methodologies, N. D. Riggan Jr., Robert C. Weih Jr.
Comparison Of Pixel-Based Versus Object-Based Land Use/Land Cover Classification Methodologies, N. D. Riggan Jr., Robert C. Weih Jr.
Journal of the Arkansas Academy of Science
Land Use/Land Cover (LULC) classification data have proven to be valuable assets for various governmental agencies, park managers, and natural resource managers. Traditional pixel-based classification methods have difficulty with high resolution imagery, resulting in a “salt and pepper” appearance. Newer object-based methods may prove to be more accurate. This study compared an object based classification procedure utilizing Feature Analyst© software with a traditional pixel-based methodology (supervised classification) when applied to medium-spatial resolution satellite imagery merged with high-spatial resolution aerial imagery. This study utilized two multi-spectral SPOT-5 satellite images, leaf-on and leaf-off, merged with a color infrared aerial image. Because of …
Accuracy Assessment Of Recreational And Mapping Grade Gps Receivers, Robert C. Weih Jr., M. Gilbert, J. Cross, D. Freeman
Accuracy Assessment Of Recreational And Mapping Grade Gps Receivers, Robert C. Weih Jr., M. Gilbert, J. Cross, D. Freeman
Journal of the Arkansas Academy of Science
Since its development in the early 1970s, Global Positioning System (GPS) technology has become more accessible and affordable for consumers. GPS applications have become ubiquitous in society. With the increased use of GPS, the question of accuracy is of concern. This study assessed the accuracy of four Garmin recreational GPS receivers, eTrex® , eTrex Legend® , eTrex Vista® , GPSMAP® 76CS, and three Trimble® mapping GPS receivers JunoTM , GeoExplorer3TM and GeoXHTM. Thirty-three ground control points (GCPs) were established in three different landscapes using survey grade GPS (Trimble’s 4700) that were corrected using National Geodetic Survey’s Online Positioning User Service …