Investigation of a data processing model for integrating hyperspectral data sets into GIS
- Univ. of Tuebingen, Tuebingen (Germany)
The processing and the evaluation of hyperspectral data sets recorded by recent sensors such as AVIRIS, or DAIS force the development of new software tools that are able to handle the information potential. Such software will be an add-on to image processing packages and should be able to derive specific information from hyperspectral datacubes. It also requires an interface to store these results in a database structure to make them accessable for a Geographic Information System (GIS). One of the main constraints to seamless data flow is the varying structure of the derived spectral information. Parameters extracted from spectral signatures can vary greatly, depending on the application. For example the positions and shapes of spectral absorptions of specific geological materials are very important information for a geochemical investigator, whereas the examination of vegetation stress needs different parameters such as the red-edge inflection point, the reflectance of specific infrared bands or the depth of water absorption bands. The study of hyperspectral data sets therefore needs very flexible software that is able to extract specific parts of the information and convert it into a common database format which is accessable via GIS software. Finally the GIS accesses the spectral information and links it as attributes into thematic information layers. The paper gives an overview of processing steps and techniques, using an hyperspectral data set, as well as of possibilities of processing the spectral information within GIS. The software packages that were used for this work consist of ARC/INFO commercial GIS package, and the SPEX software tool which is able to extract specific parameters from spectral signatures and to establish a data flow from image processing tools like ENVI or SIPS to the GIS. 6 refs., 2 figs.
- OSTI ID:
- 390708
- Report Number(s):
- CONF-960613-; TRN: 96:004292-0011
- Resource Relation:
- Conference: 2. international airborne remote sensing conference and exhibition, San Francisco, CA (United States), 24-27 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the second international airborne remote sensing conference and exhibition: Technology, measurement & analysis. Volume III; PB: 870 p.
- Country of Publication:
- United States
- Language:
- English
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