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Laurent Coutard

| Contact | Background and position | Research | Publications |


Email : Laurent.Coutard@irisa.fr
Address : IRISA / INRIA Rennes
Campus Universitaire de Beaulieu
35042 Rennes cedex - France
Tel : +33 2 99 84 25 95
Fax : +33 2 99 84 71 71
Assistant : +33 2 99 84 22 52 (Céline Ammoniaux)


Background and Position

I was graduated as aeronautical enginner in 2009 from the Ecole Supérieure des Techniques Aéronautiques et de Construction Automobile (ESTACA) after one year at the Ecole Polytechnique Fédérale de Lausanne (EPFL).

During a fixed-term contract, I work on the certification of the engine control software of a jet engine.

I begin in november 2009 my phd thesis about the visual servoing of aircraft for landing on aircraft carrier.

Research areas

Landing on aircraft carrier by visual servoing

Landing on the carrier deck remains a challenging task of airborne operations and limits the carrier operational efficiency during rough sea. Vision is a good candidate to automatically land or to help pilots to land. A method of carrier visual detection and tracking is proposed:

Detection and tracking of the carrier

Visual tracking algorithm needs an initialization.
Tacan measures are not accurate enough to provide a correct initialization.
Hence, the carrier detection in the image consists in:

  • Definition of a search area using available information
  • Localization of the carrier in the image
  • Initial pose computation

A 3D model-based tracker estimated the pose between the carrier and the camera along the video.


Visual servoing

Visual features used as inputs of the control scheme for the alignment and landing tasks rely on some visual cues that pilots use. Proposed visual features s are represented on the video. To control the longitudinal motion, the distance ly is well adapted because it is representative of the angle between impact point and horizon line. ly corresponds to the distance between the vanishing and the impact points along the y-axis of the image. In order to maintain a constant glide slope, ly has to be regulated to a constant desired value which is approximately equal to the desired glide angle.



Complete list (with postscript or pdf files if available)

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