J
Jason A. Tullis
Researcher at University of Arkansas
Publications - 28
Citations - 1203
Jason A. Tullis is an academic researcher from University of Arkansas. The author has contributed to research in topics: Workflow & Context (language use). The author has an hindex of 12, co-authored 27 publications receiving 1113 citations. Previous affiliations of Jason A. Tullis include University of South Carolina.
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Journal ArticleDOI
Object-based change detection using correlation image analysis and image segmentation
TL;DR: This study introduces change detection based on object/neighbourhood correlation image analysis and image segmentation techniques and found that object‐based change classifications incorporating the OCIs or the NCIs produced more accurate change detection classes than other change detection results.
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Synergistic Use of Lidar and Color Aerial Photography for Mapping Urban Parcel Imperviousness
TL;DR: In this paper, the imperviousness of land parcels was mapped and evaluated using high spatial resolution digitized color orthophotography and surface-cover height extracted from multiple-return lidar data.
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An Evaluation of Lidar-derived Elevation and Terrain Slope in Leaf-off Conditions
Michael E. Hodgson,John R. Jensen,George T. Raber,Jason A. Tullis,Bruce A. Davis,Gary Thompson,Karen Schuckman +6 more
TL;DR: In this paper, the effects of land cover and surface slope on lidar-derived elevation data were examined for a watershed in the piedmont of North Carolina, and the results showed that on average, the lidarderived elevation under-predicted true elevation regardless of the land cover category.
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Impact of Lidar Nominal Post-spacing on DEM Accuracy and Flood Zone Delineation
George T. Raber,John R. Jensen,Michael E. Hodgson,Jason A. Tullis,Bruce A. Davis,Judith Berglund +5 more
TL;DR: In this article, the authors present methods for establishing a relationship between nominal post-spacing and its effects on hydraulic modeling for flood zone delineation, and the results indicate that base flood elevation does not statistically change over the postspacing values tested.
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A remote sensing and GIS-assisted landscape epidemiology approach to West Nile virus
TL;DR: In this article, a combination of remotely sensed and in situ variables is used to predict WNV incidence with a correlation coefficient as high as 0.86 and a consistent spatial pattern of model errors is identified, indicating the chosen variables are capable of predicting WNV disease risk across most of the United States, but are inadequate in the northern Great Plains region of the US.