Global positioning system (GPS) supported block adjustment with self-calibration parameters

Leif Eric Blankenberg

doi:10.1117/12.182834

17 August 1994 Global positioning system (GPS) supported block adjustment with self-calibration parameters

Leif Eric Blankenberg

Proceedings Volume 2357, ISPRS Commission III Symposium: Spatial Information from Digital Photogrammetry and Computer Vision; (1994) https://doi.org/10.1117/12.182834
Event: Spatial Information from Digital Photogrammetry and Computer Vision: ISPRS Commission III Symposium, 1994, Munich, Germany

Abstract

Systematic errors in the image coordinates is often a problem when working with high accuracy bundle block adjustment. These errors can be modeled by introducing self calibration parameters in the adjustment. In a traditional block adjustment, a dense network of ground control points are required to ensure a reliable estimate of these parameters. In the case of GPS-supported block adjustment, there is usually very little ground control available, but as shown in this paper, it is still possible to estimate the self calibration parameters. This is because of the stabilizing effect the GPS-determined perspective center coordinates have on the block. In this paper, both simulated data and real block data are used to evaluate the accuracy properties of GPS-supported blocks with additional self calibration parameters. Two different sets of additional parameters are evaluated. In the GPS-supported test blocks, the introduction of self calibration parameters improves the empirical tie point accuracy by 30 - 40%.

Citation Download Citation

Leif Eric Blankenberg "Global positioning system (GPS) supported block adjustment with self-calibration parameters", Proc. SPIE 2357, ISPRS Commission III Symposium: Spatial Information from Digital Photogrammetry and Computer Vision, (17 August 1994); https://doi.org/10.1117/12.182834

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KEYWORDS

Calibration

Global Positioning System

Data centers

Cameras

Fourier transforms

Mathematical modeling

Distortion

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