Thierry Sentenac

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This paper presents radiometric and geometric models for both temperature and displacement noncontact measurements using an uncooled charge-coupled device (CCD) video camera. Such techniques (“one sensor-two measures”) represent an interest in many industrial low cost applications and scientific domains. To benefit from both measurements, we have to use the(More)
This paper presents a navigational framework which enables a robot to perform Long Range Navigation in the context of the Air-Cobot-Project in which a robot is used to execute an autonomous pre-flight inspection on an aircraft. The robot is equipped with Laser range finders and a mobile stereo camera system. The idea is to guide the robot to the pre-defined(More)
This paper deals with an automated preflight aircraft inspection using a pan-tilt-zoom camera mounted on a mobile robot moving autonomously around the aircraft. The general topic is image processing framework for detection and exterior inspection of different types of items, such as closed or unlatched door, mechanical defect on the engine, the integrity of(More)
The fundamental matrix can be estimated from point matches. The current gold standard is to bootstrap the eight-point algorithm and two-view projective bundle adjustment. The eight-point algorithm first computes a simple linear least squares solution by minimizing an algebraic cost and then projects the result to the closest rank-deficient matrix. We(More)
In this paper, we propose a new approach to detect and inspect airplane tires. We use normalized correlation based template matching to detect tires and GrabCut segmentation method to extract them from the background. We inspect the tires condition by investigating the tire treads. Ridge based intensity profiling gives satisfying inspection results.
In this paper we investigate the navigation of a harvesting robot using sensor-based controllers in an orchard. More precisely, we focus our work on the particular u-turn maneuver which allows the mechanical system to move from the current row to the next one. By using sensor-based controllers, the control law is expressed in the sensor space, and the robot(More)
In a context of radiative temperature field measurement, this paper deals with an innovative method, called bicolor near infrared thermoreflectometry, for the measurement of true temperature fields without prior knowledge of the emissivity field of an opaque material. This method is achieved by a simultaneous measurement, in the near infrared spectral band,(More)
1 Université de Toulouse ; INSA, UPS, Mines Albi, ISAE ; ICA (Institut Clément Ader) ; Campus Jarlard, F-81013 Albi cedex 09, France Ecole des Mines Albi, Campus Jarlard, F-81013 Albi, France. 2 LAAS-CNRS, Université de Toulouse, Toulouse, France 3 Institut de Mathématiques de Toulouse, Université de Toulouse, Toulouse, France 4 Faculté de Génie Electrique,(More)
The paper presents a video surveillance system which is able to measure the load displacements in an aircraft cargo area as well as the appearance of fires (hot surfaces, flame and smoke). To benefit from both measurements and cost savings, the system is based on an uncooled CCD camera operating in a near infrared (NIR) spectral band. In this article, we(More)