Detection of systematic error on charge coupled devices of large format modular cameras

Benjamin Arias-Perez; Diego Gonzalez-Aguilera; Javier Gomez-Lahoz; J. E. Hernández-López; David Hernandez-Lopez

doi:10.1117/1.OE.52.3.033202

4 March 2013 Detection of systematic error on charge coupled devices of large format modular cameras

Benjamin Arias-Perez, Diego Gonzalez-Aguilera, Javier Gomez-Lahoz, J. E. Hernández-López, David Hernandez-Lopez

Author Affiliations +

Optical Engineering, Vol. 52, Issue 3, 033202 (March 2013). https://doi.org/10.1117/1.OE.52.3.033202

Abstract

One of the most remarkable issues of modular large format digital cameras is that the image which is photogrammetric processed (for example, is the input to aerial triangulation) results from the composition of images physically acquired by a sensor. This “artificial” image is produced through a given principal distance and principal point and is corrected from distortions up to a certain amount (usually 2 μm). Therefore, it becomes unavoidable to monitor the adequate behavior of the camera and images, so self-calibration is one of the main procedures related to the efficient management of these devices. In this context, to calibrate this type of sensor and assess its performance, a two-height flight, with ground sample distance of 0.075 and 0.150 m, over a test field has been projected and executed. The issues that have been checked are: the misalignment between the inertial motion unit and the camera, the actual value of both the principal distance and principal point and the influence of the so-called additional parameters on the behavior of the image residuals.

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Benjamin Arias-Perez, Diego Gonzalez-Aguilera, Javier Gomez-Lahoz, J. E. Hernández-López, and David Hernandez-Lopez "Detection of systematic error on charge coupled devices of large format modular cameras," Optical Engineering 52(3), 033202 (4 March 2013). https://doi.org/10.1117/1.OE.52.3.033202

Published: 4 March 2013

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KEYWORDS

Cameras

Calibration

Charge-coupled devices

Global Positioning System

Sensors

Error analysis

Image sensors

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