Automation for information extraction for GIS

摘要

The availability of digital photogrammetric and remote sensing systems for processing image data, together with new photogrammetric and remote sensing image data acquisition systems, have led to research on new approaches of information extraction for mapping and Geographic Information System (GIS) applications. The developments will provide data that is more readily available, at lower cost, and with greater currency. Demands for mapping and GIS data are increasing for environmental assessment and monitoring, Hence, researchers from the fields of photogrammetry and remote sensing, as well as computer vision and Artificial Intelligence, are bringing together their particular skills for automating these tasks of information extraction. The paper will review some of the approaches used in the development of automatic methods of information extraction, for elevation determination, feature extraction using knowledge based systems and machine leaming, and ground based mobile mapping systems. Examples will be given of the application of these methods for data acquisition for digital mapping and GIS.