Integration of aerial remote sensing imaging data in a 3D-GIS environment

Matthias S. Moeller

doi:10.1117/12.462356

14 March 2003 Integration of aerial remote sensing imaging data in a 3D-GIS environment

Matthias S. Moeller

Proceedings Volume 4886, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology II; (2003) https://doi.org/10.1117/12.462356
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

For some years sensor systems have been available providing digital images of a new quality. Especially aerial stereo scanners acquire digital multispectral images with an extremely high ground resolution of about 0.10 - 0.15m and provide in addition a Digital Surface Models (DSM). These imaging products both can be used for a detailed monitoring at scales up to 1:500. The processed georeferenced multispectral orthoimages can be readily integrated into GIS making them useful for a number of applications. The DSM, derived from forward and backward facing sensors of an aerial imaging system provides a ground resolution of 0.5 m and can be used for 3D visualization purposes. In some cases it is essential, to store the ground elevation as a Digital Terrain Model (DTM) and also the height of 3-dimensional objects in a separated database. Existing automated algorithms do not work precise for the extraction of DTM from aerial scanner DSM. This paper presents a new approach which combines the visible image data and the DSM data for the generation of DTM with a reliable geometric accuracy. Already existing cadastral data can be used as a knowledge base for the extraction of building heights in cities. These elevation data is the essential source for a GIS based urban information system with a 3D visualization component.

Citation Download Citation

Matthias S. Moeller "Integration of aerial remote sensing imaging data in a 3D-GIS environment", Proc. SPIE 4886, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology II, (14 March 2003); https://doi.org/10.1117/12.462356

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KEYWORDS

Geographic information systems

Scanners

Imaging systems

Remote sensing

Cameras

Environmental sensing

Image resolution

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