Digital Close Range Photogrammetry Using Multi-Pho Orientation Techniques

Abstract

This Thesis is submitted to Ain Shams University for the degree of Master of Science in Civil Engineering, Public Works Department­ Surveying. The work included in this thesis was carried out by the author in the department of Public Works, Ain Shams University, from April1999 to April 2002. No part of this thesis has been submitted for a degree or qualification to any other University or Institution. several convergent images have been captured for the main faryade of the faculty of Engineering- Ain Shams University. Softcopy transformation 'j " was performed using two different categories of scanners namely; high- ' resolution photogrammetric scanner (HRS) and desktop publishing scanners (DTP). Then, these digital images have been assembled with different combinations and the accuracy of the formed models are (I evaluated be comparing the derived coordinates for the check points with () ..: their respective surveyed ground coordinates as measured by total station instrument. The methodology of investigation here involves the study of the performance of both used hardware and software commercial 'programs. In this context, the field-test procedure, data processing, analysis of the obtained results, and the appropriate comments and discussion were handled. Finally, the main conclusions were extracted, on the base of the obtained results, concerning the assessment of digital close range photogrammetry when applying the multi-photo approach, as used for monumental and architectural docwnentation, as well as future research related to the subject matter, are carefully established.