Project outlines traffic monitoring approaches using TerraSAR-X, improving vehicle detection and speed accuracy.
This article presents an overview of the traffic monitoring project initiated in the context of the TerraSAR-X mission and DLR´s transportation research program. After a short description of the TerraSAR-X instrument an analysis of the necessary TerraSAR-X system settings for traffic monitoring together with an assessment of the expected image quality are presented. Based on a brief revision of the theory of moving object effects in SAR images and a quantification of these effects for the TerraSAR-X case we outline the processing system that is currently implemented to detect moving vehicles and estimate their velocities. Special emphasis is put on the integration of a-priori information derived from road databases for improving detection rates and velocity estimation accuracy.
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Meyer et al. (2007) studied this question.
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