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Author | Mathieu Nicolas Delalandre; Jean-Yves Ramel; Ernest Valveny; Muhammad Muzzamil Luqman | ||||
Title | A Performance Characterization Algorithm for Symbol Localization | Type | Conference Article | ||
Year | 2009 | Publication | 8th IAPR International Workshop on Graphics Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 3-11 | ||
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Abstract | In this paper we present an algorithm for performance characterization of symbol localization systems. This algorithm is aimed to be a more “reliable” and “open” solution to characterize the performance. To achieve that, it exploits only single points as the result of localization and offers the possibility to reconsider the localization results provided by a system. We use the information about context in groundtruth, and overall localization results, to detect the ambiguous localization results. A probability score is computed for each matching between a localization point and a groundtruth region, depending on the spatial distribution of the other regions in the groundtruth. Final characterization is given with detection rate/probability score plots, describing the sets of possible interpretations of the localization results, according to a given confidence rate. We present experimentation details along with the results for the symbol localization system of [1], exploiting a synthetic dataset of architectural floorplans and electrical diagrams (composed of 200 images and 3861 symbols). | ||||
Address | La Rochelle; July 2009 | ||||
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Publisher | Springer | Place of Publication | Editor | ||
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Area | Expedition | Conference | GREC | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ DRV2009 | Serial | 1443 | ||
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Author | Mathieu Nicolas Delalandre; Tony Pridmore; Ernest Valveny; Herve Locteau; Eric Trupin | ||||
Title | Building Synthetic Graphical Documents for Performance Evaluation | Type | Book Chapter | ||
Year | 2008 | Publication | Graphics Recognition: Recent Advances and New Opportunities | Abbreviated Journal | |
Volume | 5046 | Issue | Pages | 288–298 | |
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Publisher | Place of Publication | Editor | W. Liu, J. Llados, J.M. Ogier | ||
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Series Editor | Series Title | Abbreviated Series Title | LNCS | ||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ DPV2008 | Serial | 988 | ||
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Author | Mathieu Nicolas Delalandre; Tony Pridmore; Ernest Valveny; Eric Trupin; Herve Locteau | ||||
Title | Building Synthetic Graphical Documents for Performance Evaluation | Type | Conference Article | ||
Year | 2007 | Publication | Seventh IAPR International Workshop on Graphics Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 84–87 | ||
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Address | Curitiba (Brasil) | ||||
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Area | Expedition | Conference | GREC | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ DPV2007 | Serial | 840 | ||
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Author | Anjan Dutta; Umapada Pal; Alicia Fornes; Josep Llados | ||||
Title | An Efficient Staff Removal Technique from Printed Musical Documents | Type | Conference Article | ||
Year | 2010 | Publication | 20th International Conference on Pattern Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 1965–1968 | ||
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Abstract | Staff removal is an important preprocessing step of the Optical Music Recognition (OMR). The process aims to remove the stafflines from a musical document and retain only the musical symbols, later these symbols are used effectively to identify the music information. This paper proposes a simple but robust method to remove stafflines from printed musical scores. In the proposed methodology we have considered a staffline segment as a horizontal linkage of vertical black runs with uniform height. We have used the neighbouring properties of a staffline segment to validate it as a true segment. We have considered the dataset along with the deformations described in for evaluation purpose. From experimentation we have got encouraging results. | ||||
Address | Istanbul (Turkey) | ||||
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ISSN | 1051-4651 | ISBN | 978-1-4244-7542-1 | Medium | |
Area | Expedition | Conference | ICPR | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ DPF2010 | Serial | 1420 | ||
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Author | Philippe Dosch; Ernest Valveny | ||||
Title | Report on the Second Symbol Recognition Contest | Type | Book Chapter | ||
Year | 2006 | Publication | Graphics Recognition: Ten Years Review and Future Perspectives, W. Liu, J. Llados (Eds.), LNCS 3926: 381–397 | Abbreviated Journal | |
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Notes | DAG | Approved | no | ||
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DAG @ dag @ DoV2006 | Serial | 691 | ||
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Author | Mathieu Nicolas Delalandre; Jean-Marc Ogier; Josep Llados | ||||
Title | A Fast Cbir System of Old Ornamental Letter | Type | Book Chapter | ||
Year | 2008 | Publication | Graphics Reognition: Recent Advances and New Opportunities | Abbreviated Journal | |
Volume | 5046 | Issue | Pages | 135–144 | |
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Publisher | Place of Publication | Editor | W. Liu, J. Llados, J.M. Ogier | ||
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Series Editor | Series Title | Abbreviated Series Title | LNCS | ||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ DOL2008 | Serial | 987 | ||
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Author | Mathieu Nicolas Delalandre; Jean-Marc Ogier; Josep Llados | ||||
Title | A Fast System for the Retrieval of Ornamental Letter Image | Type | Conference Article | ||
Year | 2007 | Publication | Seventh IAPR International Workshop on Graphics Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 51–54 | ||
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Address | Curitiba (Brasil) | ||||
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Area | Expedition | Conference | GREC | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ DOL2007 | Serial | 841 | ||
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Author | Philippe Dosch; Josep Llados | ||||
Title | Vectorial Signatures for Symbol Discrimination | Type | Miscellaneous | ||
Year | 2004 | Publication | Graphics Recognition: Recent Advances and Perspectives, J. Llados, Y.B. Kwon (Eds.), Lecture Notes in Computer Science, 3088:150–161, ISBN: 3–540–22478–5 | Abbreviated Journal | |
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Address | Springer-Verlag | ||||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ DoL2004 | Serial | 461 | ||
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Author | Philippe Dosch; Josep Llados | ||||
Title | Vectorial Signatures for Symbol Discrimination | Type | Miscellaneous | ||
Year | 2003 | Publication | Proceedings of Fifth IAPR International Workshop on Graphics Recognition, 159–169 | Abbreviated Journal | |
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Address | Barcelona | ||||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ DoL2003 | Serial | 373 | ||
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Author | Anton Cervantes; Gemma Sanchez; Josep Llados; Agnes Borras; Ana Rodriguez | ||||
Title | Biometric Recognition Based on Line Shape Descriptors | Type | Book Chapter | ||
Year | 2006 | Publication | Lecture Notes in Computer Science | Abbreviated Journal | |
Volume | 3926 | Issue | Pages | 346–357, | |
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Abstract | Abstract. In this paper we propose biometric descriptors inspired by shape signatures traditionally used in graphics recognition approaches. In particular several methods based on line shape descriptors used to iden- tify newborns from the biometric information of the ears are developed. The process steps are the following: image acquisition, ear segmentation, ear normalization, feature extraction and identification. Several shape signatures are defined from contour images. These are formulated in terms of zoning and contour crossings descriptors. Experimental results are presented to demonstrate the effectiveness of the used techniques. | ||||
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Publisher | Springer Link | Place of Publication | Editor | ||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ CSL2006 | Serial | 685 | ||
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Author | Anton Cervantes; Gemma Sanchez; Josep Llados; Agnes Borras; A. Rodriguez | ||||
Title | Biometric Recognition Based on Line Shape Descriptors | Type | Conference Article | ||
Year | 2005 | Publication | Sixth IAPR International Workshop on Graphics Recognition (GREC 2005) | Abbreviated Journal | |
Volume | Issue | Pages | 335–344 | ||
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Address | Hong Kong (China) | ||||
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Notes | DAG | Approved | no | ||
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DAG @ dag @ CSL2005 | Serial | 596 | ||
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Author | S. Chanda; Oriol Ramos Terrades; Umapada Pal | ||||
Title | SVM Based Scheme for Thai and English Script Identification | Type | Conference Article | ||
Year | 2007 | Publication | 9th International Conference on Document Analysis and Recognition | Abbreviated Journal | |
Volume | 1 | Issue | Pages | 551–555 | |
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Address | Curitiba (Brazil) | ||||
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Area | Expedition | Conference | ICDAR | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ CRP2007a | Serial | 885 | ||
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Author | Antonio Clavelli; Dimosthenis Karatzas | ||||
Title | Text Segmentation in Colour Posters from the Spanish Civil War Era | Type | Conference Article | ||
Year | 2009 | Publication | 10th International Conference on Document Analysis and Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 181 - 185 | ||
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Abstract | The extraction of textual content from colour documents of a graphical nature is a complicated task. The text can be rendered in any colour, size and orientation while the existence of complex background graphics with repetitive patterns can make its localization and segmentation extremely difficult.
Here, we propose a new method for extracting textual content from such colour images that makes no assumption as to the size of the characters, their orientation or colour, while it is tolerant to characters that do not follow a straight baseline. We evaluate this method on a collection of documents with historical connotations: the Posters from the Spanish Civil War. |
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Address | Barcelona, Spain | ||||
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ISSN | 1520-5363 | ISBN | 978-1-4244-4500-4 | Medium | |
Area | Expedition | Conference | ICDAR | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ ClK2009 | Serial | 1172 | ||
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Author | Antonio Clavelli; Dimosthenis Karatzas; Josep Llados | ||||
Title | A framework for the assessment of text extraction algorithms on complex colour images | Type | Conference Article | ||
Year | 2010 | Publication | 9th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 19–26 | ||
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Abstract | The availability of open, ground-truthed datasets and clear performance metrics is a crucial factor in the development of an application domain. The domain of colour text image analysis (real scenes, Web and spam images, scanned colour documents) has traditionally suffered from a lack of a comprehensive performance evaluation framework. Such a framework is extremely difficult to specify, and corresponding pixel-level accurate information tedious to define. In this paper we discuss the challenges and technical issues associated with developing such a framework. Then, we describe a complete framework for the evaluation of text extraction methods at multiple levels, provide a detailed ground-truth specification and present a case study on how this framework can be used in a real-life situation. | ||||
Address | Boston; USA; | ||||
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ISSN | ISBN | 978-1-60558-773-8 | Medium | ||
Area | Expedition | Conference | DAS | ||
Notes | DAG | Approved | no | ||
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DAG @ dag @ CKL2010 | Serial | 1432 | ||
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Author | V. Chapaprieta; Ernest Valveny | ||||
Title | Handwritten Digit Recognition Using Point Distribution Models. | Type | Miscellaneous | ||
Year | 2001 | Publication | Proceedings of the IX Spanish Symposium on Pattern Recognition and Image Analysis, 1:49–54. | Abbreviated Journal | |
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Notes | DAG | Approved | no | ||
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DAG @ dag @ ChV2001 | Serial | 83 | ||
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