Investigation into self-calibration methods for the vexcel ultracam d digital aerial camera
Joint Authors
Source
Jordan Journal of Civil Engineering
Issue
Vol. 4, Issue 2 (30 Jun. 2010), pp.95-105, 11 p.
Publisher
Jordan University of Science and Technology Deanship of Research
Publication Date
2010-06-30
Country of Publication
Jordan
No. of Pages
11
Main Subjects
Information Technology and Computer Science
Topics
Abstract EN
This paper provides an investigation into the camera calibration of a V excel Ultra Cam D digital aerial camera which was undertaken as part of the Euro SDR Digital Camera Calibration project.
This paper will present results from two flights flown over a test site at Fredrik tad-Norway using established camera calibration techniques.
Furthermore, it proposes an alternative approach.
The "new" multi cone digital camera systems are geometrically complex.
The image used for photogrammetric analysis is made up of a number of images produced by a cluster of camera cones and possibly various groups of CCD arrays.
This produces a resultant image which is not just based on traditional single lens / focal plane camera geometries, but depends on the joining of images from multiple lens (different perspectives), handling groups of focal planes and the matching of overlapping image areas.
Some of the requirements from camera calibration such as stability can only be determined through long-term Experience / research and some can be determined through investigation and short-term research such as the calibration parameters.
The methodology used in this research for assessing the camera calibration is based on self-calibration using the Collinearity Equations.
The analysis was undertaken in order to try to identify any systematic patterns in the resulting image residuals.
By identifying and quantifying the systematic residuals, a new calibration method is proposed that recomputes the bundle adjustment based on the analysis of the systematic residual patterns.
Only very small systematic patterns could be visually identified in small areas of the images.
The existing self-calibration methods and the new approach have made a small improvement on the results.
The new calibration approach for the low flight has been particularly beneficial in improving the RMSE in Z and reducing image residuals.
However, the method was less successful at improving the high flown results.
This approach has shown that it has potential but needs further investigation to fully assess its capabilities.
American Psychological Association (APA)
Qtaishat, K. S.& Smith, M. J.. 2010. Investigation into self-calibration methods for the vexcel ultracam d digital aerial camera. Jordan Journal of Civil Engineering،Vol. 4, no. 2, pp.95-105.
https://search.emarefa.net/detail/BIM-284514
Modern Language Association (MLA)
Qtaishat, K. S.& Smith, M. J.. Investigation into self-calibration methods for the vexcel ultracam d digital aerial camera. Jordan Journal of Civil Engineering Vol. 4, no. 2 (2010), pp.95-105.
https://search.emarefa.net/detail/BIM-284514
American Medical Association (AMA)
Qtaishat, K. S.& Smith, M. J.. Investigation into self-calibration methods for the vexcel ultracam d digital aerial camera. Jordan Journal of Civil Engineering. 2010. Vol. 4, no. 2, pp.95-105.
https://search.emarefa.net/detail/BIM-284514
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 105
Record ID
BIM-284514