Aerial Triangulation by Semi-automatic Image Matching for Analytical Plotters
Chi-Chang Tsai* Shih-HongChio** Shue-Chia Wang***
Abstract
In recent years, automatic Photogrammetry becomes a major goal for everyone
in the Photogrammetric industry. The technique of image processing has been used in aerial triangulation measurement for years, but it has not yet been put on production lines. Although digital photogrammetric workstations have been brought up to the market for some years, they still can not replace analytical plotters because of the limitations in there functions. Therefore mapping will still be done manually on the analytic plotters in the near future.
Although fully automatic aerial triangulation measurement has not yet been realized, some kinds of semi-automatic solutions are still possible. In this paper we developed a method for semi-automatic aerial triangulation measurement. The major concern of this development is production, not sophisticated matching theories, i.e. to put the image matching technique actually on production lines to replace the expensive point transfer instruments and experienced operators so that it is not jmerely a research topic in the laboratory. We hope that the results of the semi-automatic aerial triangulation obtained here can contribute to the automation of Photogrammetry in the practice.
Keywords:
Image matching, Aerial triangulation, Analytical plotters, Automation
*surveying Office, Plant 401, CSF.
**Doctorate Candidate, Department of Surveying Engineering, Cheng Kung University.
***Professor, Department of Surveying Engineering, Cheng Kung University.