The terrestrial / photogrammetric (TP) technique for the detection and compensation of systematic height errors in block aerial triangulation

Abdel Rahim, Mohammed Mukhtar (1980) The terrestrial / photogrammetric (TP) technique for the detection and compensation of systematic height errors in block aerial triangulation. PhD thesis, University of Glasgow.

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Abstract

The thesis is concerned with a new technique (the Terrestrial/ Photogrammetric (TP) technique) for the detection and compensation of systematic height errors in block aerial triangulation. This technique improves the height accuracy of such triangulation by reducing the original bridging distance using new bands of corrected photogrammetric tie points as height control, together with the original bands of the terrestrial height control. Various photogrammetric blocks with different characteristics and configurations have been tested in a comprehensive manner. The results show that the TP technique gives consistent results over a wide range of circumstances and that it is a most effective, simple and inexpensive method for the compensation of systematic errors. The technique shows that, in principle, a minimum of only two bands of terrestrial height control points together with an additional terrestrial height check point lying midway between them are enough to obtain the optimum height accuracy. That is to say, the terrestrial heights of only (2n + 3) points will be required to obtain the optimum height accuracy after the application of the TP technique, in any rectangular shaped photogrammetric block of parallel strips, where n is the number of these strips. The TP method promises therefore to have a great impact on aerial triangulation practice, since the requirements for ground control are less than any other triangulation method devised up till now - with a consequent economy in the overall provision of such control.

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Additional Information: Adviser: B DF Methley
Keywords: Remote sensing, Geographic information science and geodesy
Date of Award: 1980
Depositing User: Enlighten Team
Unique ID: glathesis:1980-74090
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 23 Sep 2019 15:33
Last Modified: 23 Sep 2019 15:33
URI: http://theses.gla.ac.uk/id/eprint/74090

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