Now showing items 1-15 of 15

    • Audio-Visual Person Verification 

      Author: Ben-Yacoub, S.; Luttin, J.; Jonsson, K.; Matas, J.; Kittler, J.
      (IEEE, 1999)
      In this paper we investigate benefits of classifier combination (fusion) for a multimodal system for personal identity verification. The system uses frontal face images and speech. We show that a sophisticated fusion ...
    • Automatic FPGA based implementation of a classification tree 

      Author: Mitéran, J.; Matas, J.; Dubois, J.; Bourennane, E.
      (IEEE, 2004)
      We propose a method of automatic hardware implementation of a decision rule based on the Adaboost algorithm. We review the principles of the classification method and we evaluate its hardware implementation cost in term ...
    • Comparison of face verification results on the XM2VTS database 

      Author: Matas, J.; Hamouz, M.; Jonsson, K.; Kittler, J.; Li, Y.; Kotropoulos, C.; Tefas, A.; Pitas, I.; Teewoon Tan; Hong Yan; Smeraldi, F.; Bigun, J.; Capdevielle, N.; Gerstner, W.; Ben-Yacoub, S.; Abdeljaoued, Y.; Mayoraz, E.
      (IEEE, 2000)
      The pater presents results of the face verification contest that was organized in conjunction with International Conference on Pattern Recognition 2000. Participants had to use identical data sets from a large, publicly ...
    • Face Verification Using Error Correcting Output Codes 

      Author: Kittler, J.; Ghaderi, R.; Windeatt, T.; Matas, J.
      (IEEE, 2001)
      The error correcting output coding (ECOC) approach to classifier design decomposes a multi-class problem into a set of complementary two-class problems. We show how to apply the ECOC concept to automatic face verification, ...
    • Gradient based progressive probabilistic Hough transform 

      Author: Galambos, C.; Kittler, J.; Matas, J.
      (IEEE/IET, 2001-06)
      The authors look at the benefits of exploiting gradient information to enhance the progressive probabilistic Hough transform (PPHT). It is shown that using the angle information in controlling the voting process and in ...
    • Hypothesis selection for scene interpretation using grammatical models of scene evolution 

      Author: Young, R.; Kittler, J.; Matas, J.
      (IEEE, 1998-08)
      A major bottleneck in dynamic scene interpretation is the search that is required through a database to find a model that best matches the observed data. We show that the problem can be alleviated if the object model ...
    • Learning Support Vectors for Face Verification and Recognition 

      Author: Jonsson, K.; Matas, J.; Kittler, J.; Li, Y. P.
      (IEEE, 2000)
      The paper studies support vector machines (SVM) in the context of face verification and recognition. Our study supports the hypothesis that the SVM approach is able to extract the relevant discriminatory information from ...
    • Multi Modal Verification for Teleservices and Security Applications (M2VTS) 

      Author: Richard, G.; Menguy, Y.; Guis, I.; Suaudeau, N.; Boudy, J.; Lockwood, P.; Fernandez, C.; Fernández, F.; Kotropoulos, C.; Tefas, A.; Pitas; Heimgartner, R.; Ryser, P.; Beumier, C.; Verlinde, P.; Pigeon, S.; Matas, J.; Kittler, J.; Bigün, J.; Abdeljaoued, Y.; Meurville, E.; Besacier, L.; Ansorge, M.; Maitre, G.; Luettin, J.; Ben-Yacoub, S.; Ruiz, B.; Aldama, K.; Cortes, J.
      (IEEE, 1999-07)
      The paper presents the European ACTS project “M2VTS” which stands for Multi Modal Verification for Teleservices and Security Applications. The primary goal of this project is to address the issue of secured access to local ...
    • Progressive Probabilistic Hough Transform for line detection 

      Author: Galambos, C.; Matas, J.; Kittler, J.
      (IEEE, 1999)
      We present a novel Hough Transform algorithm referred to as Progressive Probabilistic Hough Transform (PPHT). Unlike the Probabilistic HT where Standard HT is performed on a pre-selected fraction of input points, PPHT ...
    • Recognition Using Labelled Objects 

      Author: Soh, L. M.; Matas, J.; Kittler, J.
      (IEEE, 1998-08)
      General object recognition is a difficult problem. We (1997) proposed a solution for object recognition in an unconstrained environment. We simplified the recognition problem by attaching a special planar pattern on objects ...
    • Selection of Speaker Independent Feature for a Speaker Verification System 

      Author: Pandit, M.; Kittler, J.; Matas, J.
      (IEEE, 1998-08)
      In this paper we propose an optimisation technique to choose a user independent feature subset from the input feature set for a dynamic time-warping (DTW) based text-dependent speaker verification system. The results ...
    • The Multimodal Signature Method: An Efficiency and Sensitivity Study 

      Author: Koubaroulis, D.; Matas, J.; Kittler, J.
      (IEEE, 2000)
      The multimodal neighbourhood signature (MNS) method has given acceptable results both for the colour-based image retrieval and the object recognition task. Local colour content is concisely represented by invariant features ...
    • Using gradient information to enhance the Progressive Probabilistic Hough Transform 

      Author: Galambos, C.; Kittler, J.; Matas, J.
      (IEEE, 2000)
      In this paper we look at the benefits to be gained in using gradient information to enhance the progressive probabilistic Hough transform (PPHT). It is shown how using the angle information in controlling the voting process ...
    • Using grammars for scene interpretation 

      Author: Christensen, H.I.; Matas, J.; Kittler, J.
      (IEEE, 1996-09)
      A method that employs grammars to direct the inference process of a vision system that does interpretation of dynamic scenes is described. The system uses a set of qualitative image descriptors to drive the interpretation. ...
    • Wearable face recognition aid 

      Author: Iordanoglou, C.; Jonsson, K.; Kittler, J.; Matas, J.
      (IEEE, 2000)
      The feasibility of realising a low cost wearable face recognition aid based on a robust correlation algorithm is investigated. The aim of the study is to determine the limiting spatial and grey level resolution of the probe ...