Recursos de colección

EBuah Universidad Alcala (2.634 recursos)

This is an insitutional repository for the Universidad de Alacalá, giving access to the publication output of the university. The site interface is in Spanish.

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Mostrando recursos 1 - 2 de 2

  1. Road Sign Analysis Using Multisensory Data

    López Sastre, Roberto J.; Lafuente Arroyo, Sergio; Gil Jiménez, Pedro; Siegmann, Philip; Maldonado Bascón, Saturnino
    This paper deals with the problem of estimating the following road sign parameters: height, dimensions, visibility distance and partial occlusions. This work belongs to a framework whose main applications involve road sign maintenance, driver assistance, and inventory systems. From this paper we suggest a multisensory system composed from two cameras, a GPS receiver, and a distance measurement device,all of them installed in a car. The process consists of several steps which include road sign detection, recognition and tracking , and road signs parameters estimation. From some trigonometric properties, and a camera model, the information provided by the tracking subsystem and...
    (2839002 bytes; application/pdf) - 09-may-2008

  2. Computer Algebra Algorithms Applied to Computer Vision in a Parking Management System

    López Sastre, Roberto J.; Gil Jiménez, Pedro; Acevedo, Francisco J.; Maldonado Bascón, Saturnino
    From this paper, we propose a novel methodology to compute a 2D Homography applying some algorithms of computer algebra. We consider the classical problem of solving (exactly) a linear system of algebraic equations, and we suggest a new algorithm for computer vision, based on homomorphism methods over Z, to solve a system of equations necessary to achieve a 3 × 3 matrix H which lets us to compute the projective transformation which translates coordinates between points in different planes. From this work, we want to show that it is possible to apply a symbolic approach to some crucial issues of...
    (1313464 bytes; application/pdf) - 09-may-2008

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