Assessment of structure with analytical digital close range photogrammetric
Joint Authors
al-Saidi, Ali Salah J.
Khalaf, Abbas Zaydan
Source
Engineering and Technology Journal
Issue
Vol. 34, Issue 11A (30 Nov. 2016), pp.2140-2151, 12 p.
Publisher
Publication Date
2016-11-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Information Technology and Computer Science
Abstract EN
Photogrammetry is an approach that can determine the size and the shape of objects through analyzing images recorded by a photographic or video camera.
This paper studies measuring and evaluating the structure by using analytical close range photogrammetry method since it is characterized by; high precision, low effort and cost, as well as the possibility of measuring and / or assessing inaccessible places.
The objective of the present study is to assess the distortion that occur during projects execution in compare with charts and designs and detect the problem by using (DCRP) with high precision to make a decision to keep or stop working.
Several methods can be applied in data processing to determine 3D coordinates of object points for two or more images.
To evaluate data processing using four commercial software (LPS, PhotoModeler, Photogrammetric MATLAB and AutoCAD Civil 3D).
Also to overcome the difficulty of obtaining Ground Control Points (GCPs) that covers the photogrammetric object, a Portable Control System (PCS) had been established.
Using a single camera Canon EOS 500D with image size is (4752 x 3168) pixels to capturing images.
Two approaches used for 3D assessment of structure (single model and all models).
This study depended structure of directorate of engineering projects at the university of technology this structures represented the study area.
The results of analysis processes (3D model) will help the researcher to detect the distortion and suggest the proper solution for dissolve and develop it.
The precision obtained from this results show high precision.
The results are very promising ranges between (0.18 – 1.77) mm.
American Psychological Association (APA)
Khalaf, Abbas Zaydan& al-Saidi, Ali Salah J.. 2016. Assessment of structure with analytical digital close range photogrammetric. Engineering and Technology Journal،Vol. 34, no. 11A, pp.2140-2151.
https://search.emarefa.net/detail/BIM-760395
Modern Language Association (MLA)
Khalaf, Abbas Zaydan& al-Saidi, Ali Salah J.. Assessment of structure with analytical digital close range photogrammetric. Engineering and Technology Journal Vol. 34, no. 11A (2016), pp.2140-2151.
https://search.emarefa.net/detail/BIM-760395
American Medical Association (AMA)
Khalaf, Abbas Zaydan& al-Saidi, Ali Salah J.. Assessment of structure with analytical digital close range photogrammetric. Engineering and Technology Journal. 2016. Vol. 34, no. 11A, pp.2140-2151.
https://search.emarefa.net/detail/BIM-760395
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 2151
Record ID
BIM-760395