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Curvelets Based Queries for CBIR Application in Handwriting Collections
2007
Proceedings of the International Conference on Document Analysis and Recognition
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In this way, Curvelets coefficients are used as a representation tool for handwriting when searching in large manuscripts databases by finding similar handwritten samples. ...
This paper presents a new use of the Curvelet transform as a multiscale method for indexing linear singularities and curved handwritten shapes in documents images. ...
Acknowledgments: We want to thank the palaeographer Denis Muzerelle from the IRHT of Paris for his advices for medieval handwritings classification and also Catherine Volpilhac-Auger from the CERPI of ...
doi:10.1109/icdar.2007.4376995
dblp:conf/icdar/JoutelEBE07
fatcat:bzvuox3qefeern5624vgnka2gi
Handwritten Document Image Retrieval
2012
International Journal of Modeling and Optimization
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Many techniques have been reported for handwritten based document image retrieval. ...
This paper proposes a method by using Contourlet Transform (CT) for feature extraction of document images which achieves high retrieval rate. ...
In 2007, G.Joutel et al [6] , proposed curvelets based queries for CBIR applications in handwriting collections, in this method curvelet coefficients are used as representation tool for handwriting when ...
doi:10.7763/ijmo.2012.v2.212
fatcat:7biy776vkjefnld3w44laijppy
Using Harris Corners for the Retrieval of Graphs in Historical Manuscripts
2013
2013 12th International Conference on Document Analysis and Recognition
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In recent years, several methods have been proposed for content-based retrieval from manuscripts, mostly based on character or word similarity. ...
In this paper, we present a new segmentation-free method, called Harris Corner Matching (HCM), which accepts an arbitrary writing pattern as a model and allows to retrieve similar patterns from a possibly ...
In this case, the main challenge of a retrieval method is to provide an efficient index for targets which exactly match the query image. ...
doi:10.1109/icdar.2013.262
dblp:conf/icdar/HerzogSN13
fatcat:pianu2vsbbgfbc7wxrqewppz2e
Using content based image retrieval techniques for the indexing and retrieval of Thai handwritten documents
2010
2010 The 2nd International Conference on Computer and Automation Engineering (ICCAE)
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This paper also examined off-line signature recognition techniques in order to adapt to Thai handwriting system for matching data. ...
This paper proposes the use of content base image retrieval (CBIR) techniques for indexing and retrieval of handwritten documents in Thai language. ...
The method is based on Content Based Image Retrieval (CBIR) and offline signature recognition techniques. ...
doi:10.1109/iccae.2010.5451992
fatcat:fl4pvxasorhgpkufiibu2zubje
Retrieval of online handwriting by synthesis and matching
2009
Pattern Recognition
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In this paper, we propose a retrieval mechanism for online handwriting, which can handle different writing styles, specifically for Indian languages. ...
The proposed approach provides a keyboard-based search interface that enables to search handwritten data from any platform, in addition to pen-based and example-based queries. ...
Moreover, the user interface for the method described in [3] is restricted to pen-based input and hence is not convenient in all settings. ...
doi:10.1016/j.patcog.2008.08.017
fatcat:krfrckza5zg4pbvws3pvy3abuq
Keyword Spotting from Online Chinese Handwritten Documents Using One-vs-All Trained Character Classifier
2010
2010 12th International Conference on Frontiers in Handwriting Recognition
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This paper presents a text query-based method for keyword spotting from online Chinese handwritten documents. ...
The similarity between a text word and handwriting is obtained by combining the character similiarity scores given by a character classifier. ...
According to the word similarity scoring technique, keyword spotting methods can be categorized into two groups: word shape matching [1] [2] and model-based scoring [3] [4] [5] [6] . ...
doi:10.1109/icfhr.2010.49
dblp:conf/icfhr/ZhangWL10
fatcat:fxzhbz2i3nhn7pbuiesbxbfdfq
A Discriminative Model for On-line Handwritten Japanese Text Retrieval
2011
2011 International Conference on Document Analysis and Recognition
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The method is based on a discriminative model which integrates the scores of character recognition, segmentation and geometric context in search and retrieval, and the parameters are trained by supervised ...
In this paper, we describe an unconstrained on-line handwritten Japanese text retrieval system. ...
Acknowledgements This work is being partially supported by the R&D fund for "development of pen & paper based user interaction" under Japan Science and Technology Agency. ...
doi:10.1109/icdar.2011.306
dblp:conf/icdar/ChengZN11
fatcat:bt4jqneq7bapzovlrnrhmmruba
A Novel Learning-Free Word Spotting Approach Based on Graph Representation
2014
2014 11th IAPR International Workshop on Document Analysis Systems
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In order to be robust to the handwriting variations, an exhaustive merging process based on DTW alignment result is introduced in the similarity measure between word images. ...
With respect to the computation complexity, an approximate graph edit distance approach using bipartite matching is employed for graph matching. ...
Secondly, we have introduced an innovative word matching method based on the approximate graph edit distance. ...
doi:10.1109/das.2014.46
dblp:conf/das/WangEGLLF14
fatcat:hhkjk6xkszbffnlbdrcazbacna
Machine learning in a multimedia document retrieval framework
2002
IBM Systems Journal
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and the match method is very complex; also, this method does not allow for text queries. ...
The last few years have seen accelerating
0018-8670/02/$5.00 © 2002 IBM
progress in methods for multimedia retrieval, includ- ing methods based on text meta-data attached to nontext media (e.g., text annotations ...
doi:10.1147/sj.413.0494
fatcat:egp4a3gh4bdsxpw7pip7ulwqua
Studies of Radical Model for Retrieval of Cursive Chinese Handwritten Annotations
[chapter]
2000
Lecture Notes in Computer Science
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As a result, the recall of retrieval by handwritten query reaches 90% for the first hit (an improvement of 20% over previous results) and the recall by text query reaches 80% when top 20 matches are returned ...
Previously, we proposed a semantic matching scheme that uses elastic matching with a dynamic programming approach based on the radical model of Chinese characters. ...
Therefore, another method for measuring the shape similarity of two strokes based on tangent vectors is proposed. ...
doi:10.1007/3-540-44522-6_42
fatcat:yazrwvmkqbh27eravr6lft3g3i
Computer-assisted handwriting style identification system for questioned document examination
2005
Image and Video Communications and Processing 2005
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Each character in a questioned document is segmented and matched against all of the 33 handwriting copybook styles. ...
Handwriting originates from a particular copybook style such as Palmer or Zaner-Bloser that one learns in childhood. ...
SIMILARITY-BASED PATTERN MATCHING The similarity-based pattern-matching phase compares the gradient feature vector of each letter in the questioned document to the library of gradient feature vectors of ...
doi:10.1117/12.584979
dblp:conf/eiivcp/ChaYTL05
fatcat:xatib4azgng73j25q74plhfshm
Web-Based Handwriting Education with Animated Virtual Teacher
[chapter]
2004
Lecture Notes in Computer Science
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As a result, we design a web-based handwriting education system. With our proposed system, students can stay at home to do the exercises for learning the handwriting of characters. ...
In addition, we propose to animate a virtual teacher on the student's terminal for demonstrating the handwriting of the characters to give students a sense of presence. ...
When two sketches are compared, we propose to have global and local matching that computes the similarity not only based on the shape information, but also based on other criteria such as spatial relations ...
doi:10.1007/978-3-540-27859-7_38
fatcat:5g2cripefrebnhnenwvkzgh6um
Web-Based Handwriting Education with Animated Virtual Teacher
2006
International Journal of Distance Education Technologies
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As a result, we design a web-based handwriting education system. With our proposed system, students can stay at home to do the exercises for learning the handwriting of characters. ...
In addition, we propose to animate a virtual teacher on the student's terminal for demonstrating the handwriting of the characters to give students a sense of presence. ...
When two sketches are compared, we propose to have global and local matching that computes the similarity not only based on the shape information, but also based on other criteria such as spatial relations ...
doi:10.4018/jdet.2006010106
fatcat:5veurr4nejeencecobxg4vddii
Curvelets based feature extraction of handwritten shapes for ancient manuscripts classification
2007
Document Recognition and Retrieval XIV
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handwritings) and authentication of writers (for humanistic manuscripts). ...
The Curvelets based analysis leads to the construction of a compact Log-polar signature for each writing. ...
Acknowledgments We want to thank the palaeographer Denis Muzerelle from the IRHT of Paris for his advices and recommendations for medieval handwritings classification and also Catherine Volpilhac-Auger ...
doi:10.1117/12.704450
dblp:conf/drr/JoutelEBE07
fatcat:ifftqvsqffch7oe4piriha3zcm
Handwritten Text Image Authentication using Back Propagation
[article]
2011
arXiv
pre-print
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In this paper we Here in this paper we proposed a method for authenticating hand written text images using back propagation algorithm.. ...
matching similarity. ...
Unlike the existing approaches using the image-to-image matching-based approaches, we use the word recognition distances to improve the word matching accuracy. ...
arXiv:1110.1488v1
fatcat:yogtbzyt3refjbj4slmkbhwoti
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