Remotely-sensed data as an information source for geographical information systems in natural resource management a review |
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| Authors: | CRAIG M TROTTER |
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| Institution: | DSIR Land Resources , Private Bag, Palmerston North, New Zealand |
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| Abstract: | Abstract Remotely-sensed image data have long served as a primary source of information for. geographical information systems (GIS), with the transformation of data to information provided by visual image interpretation. Digital image data, in combination with recent advances in computer technology, currently allow visual image interpretation to be realised in a completely digital processing environment. However, it remains desirable to capitalize even further on the potential of digital image data for GIS, through the use of schemes involving automated data processing. The opportunities for, and impediments to, such schemes are considered here with particular reference to the provision of information for natural resource management. It is concluded that further—although foreseeable—developments in both research and technology will be required before fully operational procedures for the automated acquisition of GIS information from image data can be established. |
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