José Luis Sánchez-López

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We present a vision based control strategy for tracking and following objects using an Unmanned Aerial Vehicle. We have developed an image based visual servoing method that uses only a forward looking camera for tracking and following objects from a multi-rotor UAV, without any dependence on GPS systems. Our proposed method tracks a user specified object(More)
  • E. Vázquez-Jáuregui, G. Alkhazov, +15 authors Zheng Shuchen
  • 1998
We report the first observation of two Cabibbo–suppressed decay modes, Ξ + c → Σ + π − π + and Ξ + c → Σ − π + π +. We observe 56 ± 13 over a background of 21, and 23 ± 7 over a background of 12 events, respectively, for the signals. The data were accumulated using the SELEX spectrometer during the 1996–1997 fixed target run at Fermilab, chiefly from a 600(More)
In this paper, we apply a hierarchical tracking strategy of planar objects (or that can be assumed to be planar) that is based on direct methods for vision-based applications on-board UAVs. The use of this tracking strategy allows to achieve the tasks at real-time frame rates and to overcome problems posed by the challenging conditions of the tasks: e.g.(More)
Lateral flow assay tests are nowadays becoming powerful, low-cost diagnostic tools. Obtaining a result is usually subject to visual interpretation of colored areas on the test by a human operator, introducing subjectivity and the possibility of errors in the extraction of the results. While automated test readers providing a result-consistent solution are(More)
Autonomous route following with road vehicles has gained popularity in the last few decades. In order to provide highly automated driver assistance systems, different types and combinations of sensors have been presented in the literature. However, most of these approaches apply quite sophisticated and expensive sensors, and hence, the development of a(More)
The objective of this paper is to design a path following control system for a car-like mobile robot using classical linear control techniques, so that it adapts on-line to varying conditions during the trajectory following task. The main advantages of the proposed control structure is that well known linear control theory can be applied in calculating the(More)
Adaptive proprotors as applied to convertible MAVs ► for all visitors/competitors : presentation of the Outdoor competition place and security rules 10h35 – 10h55 : Coffee break 10h55 – 12h10 : Scientific Session 2: Vision and image processing 12h10 – 13h50 : Lunch / Poster session 13h50 – 15h20 : Keynotes lecture and Round table about RPAS Integration in(More)
The vast majority of approaches make use of features to track objects. In this paper, we address the tracking problem with a tracking-by-registration strategy based on direct methods. We propose a hierarchical strategy in terms of image resolution and number of parameters estimated in each resolution, that allows direct methods to be applied in demanding(More)