Abstract
Many satellite systems take cover images like QuickBird for terrain so that these images scan be used to construct 3D models likes Triangulated Irregular Network (TIN), and Digital Elevation Model (DEM). This paper presents a production of 3D TIN for Al-Karkh University of Science in Baghdad - Iraq using QuickBird image data with pixel resolution of 0.6 m. The recent generations of high-resolution satellite imaging systems open a new era of digital mapping and earth observation. It provides not only multi-spectral and high-resolution data but also the capability for stereo mapping. The result of this study is a production of 3D satellite images of the university by merging 1 m DEM with satellite image for ROI using ArcGIS package Version 10.3.
Highlights
Satellite images in the range of (0.6-2.4) m resolution were collected by QuickBird Satellite [1]
Environmental impacts of logging, such as road construction, stream sedimentation associated with clear-cut harvesting, and slash-and-burn activities, can be clearly detected from the imagery
A Triangulated Irregular Network (TIN) surface was created from features that contain elevation information
Summary
Satellite images in the range of (0.6-2.4) m resolution were collected by QuickBird Satellite [1] It is an excellent source of environmental data. QuickBird satellite data can be potentially useful in hazard and environmental assessments [2]. A Triangulated Irregular Network (TIN) is a data structure for representing 3D surfaces comprised of connected, and not overlapped triangles. This is one of the techniques used in the GIS field to represent terrain models [5]. This is because the sample resolution can be varied across the terrain. A TIN can be sculpted to accommodate man-made features of the terrain, such as buildings and roads [7]
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