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- Title
Screw Displacement-Based Bundle Block Adjustment Considering Correlation.
- Authors
Sheng, Qing H.; Zhang, Xin Y.; Hui Xiao; Guan, Hai Y.
- Abstract
In a traditional bundle block adjustment model that separately determines the position and orientation elements of each exposure station, inaccurate initial values of exterior orientation elements (EOPs) lead to a strong correlation relationship between rotation and translation matrices defined by EOPs. To rectify this correlation problem, this paper introduces a screw displacement based bundle block adjustment (SDA) model, in which an imaging ray's screw displacements described by dual quaternion are used to construct a collinearity equation. By SDA, the position and orientation elements are determined jointly. To evaluate the robustness and efficiency of SDA, a group of progressive experiments were conducted on three types of datasets, including synthetic, close-range, and aerial images. Experimental results demonstrate that SDA overcomes the EOP correlation problems and achieves reliable positioning accuracies for large-angle oblique photographic structures.
- Subjects
BLOCK adjustment (Photographic surveying); AERIAL surveys; PHOTOGRAPHIC surveying; AERIAL photogrammetry; ROBUST control
- Publication
Photogrammetric Engineering & Remote Sensing, 2017, Vol 83, Issue 11, p761
- ISSN
0099-1112
- Publication type
Article
- DOI
10.14358/PERS.83.10.761