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Auflistung nach Autor:in "Laneuville, Dann"

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  • Konferenzbeitrag
    Passive multitarget tracking with cameras
    (INFORMATIK 2011 – Informatik schafft Communities, 2011) Laneuville, Dann; Nègre, Adrien
    This paper considers large areas surveillance and 3D tracking with passive data, obtained here by geographically distributed cameras. The first step, at a camera level, is to detect moving objects in the video sequence and we propose a very simple, fast and efficient approach: a pixel level background subtraction technique to segment foreground pixels and a region level process where segmented pixels are connected into objects. Experiments on real costal environment videos of this method demonstrate similar results compare to more sophisticated approaches with a very low processing time, which allows processing high resolution images. The second step is then to obtain 3D tracks by merging the elementary detections issued by the cameras and we use a suitably modified Gaussian Mixture Probability Hypothesis Density (GM-PHD) filter approach in a centralized fusion scheme. We present some results with simulated data obtained on a realistic test scenario.
  • Konferenzbeitrag
    Target Motion Analysis with Passive Data Fusion
    (Informatik 2007 – Informatik trifft Logistik – Band 2, 2007) Laneuville, Dann
    We consider in this paper the passive multisensor Target Motion Analysis (TMA) problem. The ownship, typically a submarine, is equipped with a Cylindrical Antenna (CA) and a Towed Antenna (TA), whose outputs are made of bearing tracks for the first one and bearing or bearing/frequency tracks for the second. The aim is to take advantage of the multisensor data fusion to improve the TMA process that can be obtained with one of the two sensors on a possibly manoeuvring target. We first describe our algorithms and then show some results on simulated data.