OcrV1, Main, Exploration, bibRecord, 000580

A Mask-based enhancement method for historical documents

Identifieur interne : 000580 ( Main/Exploration ); précédent : 000579; suivant : 000581

A Mask-based enhancement method for historical documents

Auteurs : Elisa H. Barney Smith [États-Unis] ; Jérôme Darbon [France] ; Laurence Likforman-Sulem [France]

Source :

Proceedings of SPIE, the International Society for Optical Engineering [ 0277-786X ] ; 2011.

RBID : Pascal:11-0279166

Descripteurs français

Pascal (Inist)
- Imagerie, Vieillissement, Etat actuel, Télévision, Bruit fond, Réduction bruit, Traitement image document, Reconnaissance optique caractère, Précision, 0130C, 4230, Méthode des moyennes non-locales, Arrière plan.
Wicri :
- topic : Télévision.

English descriptors

KwdEn :
- Accuracy, Aging, Background, Background noise, Document image processing, Imagery, Noise reduction, Non-local means method, Optical character recognition, State of the art, Television.

Abstract

This paper proposes a novel method for document enhancement. The method is based on the combination of two state-of-the-art filters through the construction of a mask. The mask is applied to a TV (Total Variation) -regularized image where background noise has been reduced. The masked image is then filtered by NLmeans (Non Local Means) which reduces the noise in the text areas located by the mask. The document images to be enhanced are real historical documents from several periods which include several defects in their background. These defects result from scanning, paper aging and bleed-through. We observe the improvement of this enhancement method through OCR accuracy.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000131
to stream PascalFrancis, to step Curation: 000642
to stream PascalFrancis, to step Checkpoint: 000134
to stream Main, to step Merge: 000586
to stream Main, to step Curation: 000580

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">A Mask-based enhancement method for historical documents</title>
<author><name sortKey="Barney Smith, Elisa H" sort="Barney Smith, Elisa H" uniqKey="Barney Smith E" first="Elisa H." last="Barney Smith">Elisa H. Barney Smith</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Boise State University</s1>
<s2>Boise, Idaho</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName><region type="state">Idaho</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Darbon, Jerome" sort="Darbon, Jerome" uniqKey="Darbon J" first="Jérôme" last="Darbon">Jérôme Darbon</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CMLA, ENS Cachan, CNRS, PRES UniverSud</s1>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>PRES UniverSud</wicri:noRegion>
<wicri:noRegion>CMLA, ENS Cachan, CNRS, PRES UniverSud</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Likforman Sulem, Laurence" sort="Likforman Sulem, Laurence" uniqKey="Likforman Sulem L" first="Laurence" last="Likforman-Sulem">Laurence Likforman-Sulem</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Telecom ParisTech</s1>
<s2>Paris</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><settlement type="city">Paris</settlement>
</placeName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">11-0279166</idno>
<date when="2011">2011</date>
<idno type="stanalyst">PASCAL 11-0279166 INIST</idno>
<idno type="RBID">Pascal:11-0279166</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000131</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000642</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">000134</idno>
<idno type="wicri:doubleKey">0277-786X:2011:Barney Smith E:a:mask:based</idno>
<idno type="wicri:Area/Main/Merge">000586</idno>
<idno type="wicri:Area/Main/Curation">000580</idno>
<idno type="wicri:Area/Main/Exploration">000580</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">A Mask-based enhancement method for historical documents</title>
<author><name sortKey="Barney Smith, Elisa H" sort="Barney Smith, Elisa H" uniqKey="Barney Smith E" first="Elisa H." last="Barney Smith">Elisa H. Barney Smith</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Boise State University</s1>
<s2>Boise, Idaho</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName><region type="state">Idaho</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Darbon, Jerome" sort="Darbon, Jerome" uniqKey="Darbon J" first="Jérôme" last="Darbon">Jérôme Darbon</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CMLA, ENS Cachan, CNRS, PRES UniverSud</s1>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>PRES UniverSud</wicri:noRegion>
<wicri:noRegion>CMLA, ENS Cachan, CNRS, PRES UniverSud</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Likforman Sulem, Laurence" sort="Likforman Sulem, Laurence" uniqKey="Likforman Sulem L" first="Laurence" last="Likforman-Sulem">Laurence Likforman-Sulem</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Telecom ParisTech</s1>
<s2>Paris</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><settlement type="city">Paris</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Proceedings of SPIE, the International Society for Optical Engineering</title>
<title level="j" type="abbreviated">Proc. SPIE Int. Soc. Opt. Eng.</title>
<idno type="ISSN">0277-786X</idno>
<imprint><date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Proceedings of SPIE, the International Society for Optical Engineering</title>
<title level="j" type="abbreviated">Proc. SPIE Int. Soc. Opt. Eng.</title>
<idno type="ISSN">0277-786X</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accuracy</term>
<term>Aging</term>
<term>Background</term>
<term>Background noise</term>
<term>Document image processing</term>
<term>Imagery</term>
<term>Noise reduction</term>
<term>Non-local means method</term>
<term>Optical character recognition</term>
<term>State of the art</term>
<term>Television</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Imagerie</term>
<term>Vieillissement</term>
<term>Etat actuel</term>
<term>Télévision</term>
<term>Bruit fond</term>
<term>Réduction bruit</term>
<term>Traitement image document</term>
<term>Reconnaissance optique caractère</term>
<term>Précision</term>
<term>0130C</term>
<term>4230</term>
<term>Méthode des moyennes non-locales</term>
<term>Arrière plan</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Télévision</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">This paper proposes a novel method for document enhancement. The method is based on the combination of two state-of-the-art filters through the construction of a mask. The mask is applied to a TV (Total Variation) -regularized image where background noise has been reduced. The masked image is then filtered by NLmeans (Non Local Means) which reduces the noise in the text areas located by the mask. The document images to be enhanced are real historical documents from several periods which include several defects in their background. These defects result from scanning, paper aging and bleed-through. We observe the improvement of this enhancement method through OCR accuracy.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>États-Unis</li>
</country>
<region><li>Idaho</li>
</region>
<settlement><li>Paris</li>
</settlement>
</list>
<tree><country name="États-Unis"><region name="Idaho"><name sortKey="Barney Smith, Elisa H" sort="Barney Smith, Elisa H" uniqKey="Barney Smith E" first="Elisa H." last="Barney Smith">Elisa H. Barney Smith</name>
</region>
</country>
<country name="France"><noRegion><name sortKey="Darbon, Jerome" sort="Darbon, Jerome" uniqKey="Darbon J" first="Jérôme" last="Darbon">Jérôme Darbon</name>
</noRegion>
<name sortKey="Likforman Sulem, Laurence" sort="Likforman Sulem, Laurence" uniqKey="Likforman Sulem L" first="Laurence" last="Likforman-Sulem">Laurence Likforman-Sulem</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/OcrV1/Data/Main/Exploration

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000580 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000580 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Ticri/CIDE
   |area=    OcrV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     Pascal:11-0279166
   |texte=   A Mask-based enhancement method for historical documents
}}

This area was generated with Dilib version V0.6.32.
Data generation: Sat Nov 11 16:53:45 2017. Site generation: Mon Mar 11 23:15:16 2024

	Serveur d'exploration sur l'OCR
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur l'OCR

A Mask-based enhancement method for historical documents

A Mask-based enhancement method for historical documents

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri