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Bi-Gaussian score equalization in an audio-visual SVM-based person verification system
dc.contributor.author | Ejarque, Pascual |
dc.contributor.author | Hernando Pericás, Francisco Javier |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2011-01-14T11:14:17Z |
dc.date.available | 2011-01-14T11:14:17Z |
dc.date.created | 2008 |
dc.date.issued | 2008 |
dc.identifier.citation | Ejarque, P.; Hernando, J. Bi-Gaussian score equalization in an audio-visual SVM-based person verification system. A: International Speech Communication Association. Conference. "9TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION". Brisbane: 2008, p. 2663-2666. |
dc.identifier.isbn | 978-1-61567-378-0 |
dc.identifier.uri | http://hdl.handle.net/2117/11029 |
dc.description.abstract | In multimodal fusion systems a normalization of the features or the scores is needed before the fusion process. In this work, in addition to the conventional methods, histogram equalization, which was recently introduced by the authors in multimodal systems, and Bi-Gaussian equalization, which takes into account the separate statistics of the genuine and impostor scores, and is introduced in this paper, are applied upon the scores in a multimodal SVM-based person verification system composed by prosodic, speech spectrum, and face information. Bi-Gaussian equalization has obtained the best results and outperform in more than a 23.25% the results obtained by Min-Max normalization. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
dc.subject.lcsh | Support vector machines |
dc.subject.lcsh | Radial basis functions |
dc.subject.lcsh | Bi-Gaussian equalization |
dc.subject.lcsh | Signal theory (Telecommunication) |
dc.title | Bi-Gaussian score equalization in an audio-visual SVM-based person verification system |
dc.type | Conference report |
dc.subject.lemac | Gauss, Carl Friedrich, 1777-1855 |
dc.subject.lemac | Senyal, Teoria del (Telecomunicació) |
dc.contributor.group | Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla |
dc.relation.publisherversion | http://www.lsi.upc.edu/~nlp/papers/hernando_bigaus.pdf |
dc.rights.access | Open Access |
local.identifier.drac | 2544053 |
dc.description.version | Postprint (published version) |
local.citation.author | Ejarque, P.; Hernando, J. |
local.citation.contributor | International Speech Communication Association. Conference |
local.citation.pubplace | Brisbane |
local.citation.publicationName | 9TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION |
local.citation.startingPage | 2663 |
local.citation.endingPage | 2666 |