Adaptation de modèles de Markov cachés - Application à la reconnaissance de caractères imprimés
Identifieur interne : 000596 ( Main/Merge ); précédent : 000595; suivant : 000597Adaptation de modèles de Markov cachés - Application à la reconnaissance de caractères imprimés
Auteurs : Kamel Ait-Mohand [France] ; Laurent Heutte [France] ; Thierry Paquet [France] ; Nicolas Ragot [France]Source :
Descripteurs français
Abstract
We present in this paper a new algorithm for the adaptation of hidden Markov models (HMM models). The principle of our iterative adaptive algorithm is to alternate an HMM structure adaptation stage with an HMM Gaussian MAP adaptation stage. This algorithm is applied to the recognition of printed characters to adapt the models learned by a polyfont character recognition engine to new forms of characters. Comparing the results with those of MAP and MLLR classic adaptations shows a slight increase in the performance of the recognition system.
Url:
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000138
- to stream Hal, to step Curation: 000138
- to stream Hal, to step Checkpoint: 000105
Links to Exploration step
Hal:hal-00490060Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="fr">Adaptation de modèles de Markov cachés - Application à la reconnaissance de caractères imprimés</title>
<author><name sortKey="Ait Mohand, Kamel" sort="Ait Mohand, Kamel" uniqKey="Ait Mohand K" first="Kamel" last="Ait-Mohand">Kamel Ait-Mohand</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Heutte, Laurent" sort="Heutte, Laurent" uniqKey="Heutte L" first="Laurent" last="Heutte">Laurent Heutte</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Paquet, Thierry" sort="Paquet, Thierry" uniqKey="Paquet T" first="Thierry" last="Paquet">Thierry Paquet</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Ragot, Nicolas" sort="Ragot, Nicolas" uniqKey="Ragot N" first="Nicolas" last="Ragot">Nicolas Ragot</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-101325" status="VALID"><orgName>Institut de Recherche en Systèmes Electroniques Embarqués [Saint Etienne du Rouvray]</orgName>
<orgName type="acronym">IRSEEM EA 4353</orgName>
<desc><address><addrLine>Technopôle du Madrillet Avenue Galilée BP 10024 76801 Saint Etienne du Rouvray Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.esigelec.fr/</ref>
</desc>
<listRelation><relation active="#struct-318576" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-318576" type="direct"><org type="institution" xml:id="struct-318576" status="INCOMING"><orgName>ESIGELEC</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">HAL</idno>
<idno type="RBID">Hal:hal-00490060</idno>
<idno type="halId">hal-00490060</idno>
<idno type="halUri">https://hal.archives-ouvertes.fr/hal-00490060</idno>
<idno type="url">https://hal.archives-ouvertes.fr/hal-00490060</idno>
<date when="2010-03-18">2010-03-18</date>
<idno type="wicri:Area/Hal/Corpus">000138</idno>
<idno type="wicri:Area/Hal/Curation">000138</idno>
<idno type="wicri:Area/Hal/Checkpoint">000105</idno>
<idno type="wicri:Area/Main/Merge">000596</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="fr">Adaptation de modèles de Markov cachés - Application à la reconnaissance de caractères imprimés</title>
<author><name sortKey="Ait Mohand, Kamel" sort="Ait Mohand, Kamel" uniqKey="Ait Mohand K" first="Kamel" last="Ait-Mohand">Kamel Ait-Mohand</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Heutte, Laurent" sort="Heutte, Laurent" uniqKey="Heutte L" first="Laurent" last="Heutte">Laurent Heutte</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Paquet, Thierry" sort="Paquet, Thierry" uniqKey="Paquet T" first="Thierry" last="Paquet">Thierry Paquet</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-23832" status="VALID"><orgName>Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes</orgName>
<orgName type="acronym">LITIS</orgName>
<desc><address><addrLine>Avenue de l'Université UFR des Sciences et Techniques 76800 Saint-Etienne du Rouvray</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.litislab.eu</ref>
</desc>
<listRelation><relation active="#struct-300317" type="direct"></relation>
<relation name="EA4108" active="#struct-300318" type="direct"></relation>
<relation active="#struct-301288" type="direct"></relation>
<relation active="#struct-301232" type="indirect"></relation>
</listRelation>
<tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
<tutelle name="EA4108" active="#struct-300318" type="direct"><org type="institution" xml:id="struct-300318" status="VALID"><orgName>Université de Rouen</orgName>
<desc><address><addrLine> 1 rue Thomas Becket - 76821 Mont-Saint-Aignan</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-rouen.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName>
<orgName type="acronym">INSA Rouen</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
<listRelation><relation active="#struct-301232" type="direct"></relation>
</listRelation>
</org>
</tutelle>
<tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName>
<orgName type="acronym">INSA</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Rouen</settlement>
<region type="region" nuts="2">Région Bourgogne</region>
</placeName>
<orgName type="university">Université de Rouen</orgName>
</affiliation>
</author>
<author><name sortKey="Ragot, Nicolas" sort="Ragot, Nicolas" uniqKey="Ragot N" first="Nicolas" last="Ragot">Nicolas Ragot</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-101325" status="VALID"><orgName>Institut de Recherche en Systèmes Electroniques Embarqués [Saint Etienne du Rouvray]</orgName>
<orgName type="acronym">IRSEEM EA 4353</orgName>
<desc><address><addrLine>Technopôle du Madrillet Avenue Galilée BP 10024 76801 Saint Etienne du Rouvray Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.esigelec.fr/</ref>
</desc>
<listRelation><relation active="#struct-318576" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-318576" type="direct"><org type="institution" xml:id="struct-318576" status="INCOMING"><orgName>ESIGELEC</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
</analytic>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="mix" xml:lang="fr"><term>Modèles de Markov cachés</term>
<term>OCR</term>
<term>adaptation de structure</term>
<term>reconnaissance de caractères</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">We present in this paper a new algorithm for the adaptation of hidden Markov models (HMM models). The principle of our iterative adaptive algorithm is to alternate an HMM structure adaptation stage with an HMM Gaussian MAP adaptation stage. This algorithm is applied to the recognition of printed characters to adapt the models learned by a polyfont character recognition engine to new forms of characters. Comparing the results with those of MAP and MLLR classic adaptations shows a slight increase in the performance of the recognition system.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/OcrV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000596 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 000596 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Ticri/CIDE |area= OcrV1 |flux= Main |étape= Merge |type= RBID |clé= Hal:hal-00490060 |texte= Adaptation de modèles de Markov cachés - Application à la reconnaissance de caractères imprimés }}
This area was generated with Dilib version V0.6.32. |