Optimal Design of Close-Range Photogrammetry
Date Issued
2011
Date
2011
Author(s)
Chien, Yu-Shan
Abstract
As the rapid development of digital cameras and digital image processing technology, close-range photogrammetry has been recently widespread into various applications. Close-range photogrammetry, as compared to aerial photogrammetry, features in imaging objects in a much closer distance and is of high flexibility in placing camera stations and with convergent optical axes supporting a favorable bundle intersection. In theory, the use of digital camera together with appropriate data acquisition would activate close-range photogrammetry up to an operational level. However, most of time, users still suffer from not knowing how or whether the operating conditions would be satisfactory and reach the expected quality.
The purpose of this research is to provide a platform where the optimization of close -range photogrammetric network design is to be realized. Based on the initial conditions and the required accuracy at the input of a close-range photogrammetric task, several quality indicators are applied to check if accommodations in strengthening or weakening the current network are necessary. In an iterative fashion through adjustment approach, the platform would not stop the modifications until meeting the required accuracy quality. The proposed platform, upon empirical tests, is found to be practically effective when carrying out close-range photogrammetric tasks, especially when it comes to assure the expected accuracy simply at the plan stage of actual field surveying.
Subjects
Close-range Photogrammetry
Network Design
Adjustment
Type
thesis
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