Mr. Folke Isaksson Profile

Folke Isaksson

at Saab Bofors Dynamics AB

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Proceedings Article | 14 April 2008 Paper

3D rapid mapping

Folke Isaksson, Johan Borg, Leif Haglund

Proceedings Volume 6946, 69460D (2008) https://doi.org/10.1117/12.777616

KEYWORDS: Cameras, 3D image processing, Calibration, 3D modeling, Image processing, Data modeling, Spatial resolution, Detection and tracking algorithms, Image resolution, Synthetic aperture radar

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In this paper the performance of passive range measurement imaging using stereo technique in real time applications is described. Stereo vision uses multiple images to get depth resolution in a similar way as Synthetic Aperture Radar (SAR) uses multiple measurements to obtain better spatial resolution. This technique has been used in photogrammetry for a long time but it will be shown that it is now possible to do the calculations, with carefully designed image processing algorithms, in e.g. a PC in real time. In order to get high resolution and quantitative data in the stereo estimation a mathematical camera model is used. The parameters to the camera model are settled in a calibration rig or in the case of a moving camera the scene itself can be used for calibration of most of the parameters. After calibration an ordinary TV camera has an angular resolution like a theodolite, but to a much lower price. The paper will present results from high resolution 3D imagery from air to ground. The 3D-results from stereo calculation of image pairs are stitched together into a large database to form a 3D-model of the area covered.

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