RESEARCH ON LOW ALTITUDE IMAGE ACQUISITION SYSTEM

摘要

In order to acquire quick, high resolution, affordable aerial photographs, an unmanned helium filled airship system equipped with a non-metric digital camera was developed in Chinese Academy of Surveying and Mapping. To meet the potential demand of large scale photogrammetric applications, the non-metric digital camera was calibrated rigourously based on the bundle adjustment with additional parameters and the workflow for generating digital orthophotos was proposed. At the paper end, the promising results obtained from an application with the system are shown and evaluated.