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Author |
Salvatore Tabbone; Oriol Ramos Terrades; S. Barrat |
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Title |
Histogram of radon transform. A useful descriptor for shape retrieval |
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Conference Article |
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2008 |
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19th International Conference on Pattern Recognition |
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1-4 |
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Tampa, Florida |
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ICPR |
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DAG |
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no |
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Admin @ si @ TRB2008 |
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1876 |
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Author |
Sergio Escalera |
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Title |
Coding and Decoding Design of ECOCs for Multi-class Pattern and Object Recognition A |
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Year |
2008 |
Publication |
PhD Thesis, Universitat de Barcelona-CVC |
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Many real problems require multi-class decisions. In the Pattern Recognition field,
many techniques have been proposed to deal with the binary problem. However,
the extension of many 2-class classifiers to the multi-class case is a hard task. In
this sense, Error-Correcting Output Codes (ECOC) demonstrated to be a powerful
tool to combine any number of binary classifiers to model multi-class problems. But
there are still many open issues about the capabilities of the ECOC framework. In
this thesis, the two main stages of an ECOC design are analyzed: the coding and
the decoding steps. We present different problem-dependent designs. These designs
take advantage of the knowledge of the problem domain to minimize the number
of classifiers, obtaining a high classification performance. On the other hand, we
analyze the ECOC codification in order to define new decoding rules that take full
benefit from the information provided at the coding step. Moreover, as a successful
classification requires a rich feature set, new feature detection/extraction techniques
are presented and evaluated on the new ECOC designs. The evaluation of the new
methodology is performed on different real and synthetic data sets: UCI Machine
Learning Repository, handwriting symbols, traffic signs from a Mobile Mapping System, Intravascular Ultrasound images, Caltech Repository data set or Chaga’s disease
data set. The results of this thesis show that significant performance improvements
are obtained on both traditional coding and decoding ECOC designs when the new
coding and decoding rules are taken into account. |
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Ph.D. thesis |
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Ediciones Graficas Rey |
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Petia Radeva;Oriol Pujol |
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MILAB; HuPBA |
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no |
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Call Number |
Admin @ si @ Esc2008b |
Serial |
2217 |
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Author |
Rozenn Dhayot; Fernando Vilariño; Gerard Lacey |
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Title |
Improving the Quality of Color Colonoscopy Videos |
Type |
Journal Article |
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Year |
2008 |
Publication |
EURASIP Journal on Image and Video Processing |
Abbreviated Journal |
EURASIP JIVP |
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Volume |
139429 |
Issue |
1 |
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1-9 |
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800 |
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MV;SIAI |
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no |
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Call Number |
fernando @ fernando @ |
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2422 |
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Author |
Dani Rowe |
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Title |
Towards Robust Multiple-People Tracking in Unconstrained Environments |
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Report |
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Year |
2007 |
Publication |
CVC Technical Report #100 |
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CVC (UAB) |
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no |
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Admin @ si @ Row2007 |
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765 |
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Author |
Francisco Javier Orozco; F.A. Garcia; J.L. Arcos; Jordi Gonzalez |
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Title |
Spatio-Temporal Reasoning for Reliable Facial Expression Interpretation |
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Conference Article |
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Year |
2007 |
Publication |
Proceedings of the 5th International Conference on Computer Vision Systems |
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Bielefeld University (Germany) |
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ICVS |
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ISE |
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no |
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Call Number |
ISE @ ise @ OGA2007 |
Serial |
772 |
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Author |
Francisco Javier Orozco; Jordi Gonzalez; Ignasi Rius; Xavier Roca |
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Title |
Hierarchical Eyelid and Face Tracking |
Type |
Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:499–506 |
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Girona (Spain) |
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ISE |
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ISE @ ise @ OGR2007 |
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773 |
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Author |
Alicia Fornes; Sergio Escalera; Josep Llados; Gemma Sanchez; Petia Radeva; Oriol Pujol |
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Title |
Handwritten Symbol Recognition by a Boosted Blurred Shape Model with Error Correction |
Type |
Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:13–21 |
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Girona (Spain) |
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MILAB;DAG;HUPBA |
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no |
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Call Number |
BCNPCL @ bcnpcl @ FEL2007a |
Serial |
775 |
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Author |
Agnes Borras; Josep Llados |
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Title |
Similarity-Based Object Retrieval Using Appearance and Geometric Feature Combination |
Type |
Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120 |
Abbreviated Journal |
LNCS |
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4478 |
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33–39 |
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Abstract |
This work presents a content-based image retrieval system of general purpose that deals with cluttered scenes containing a given query object. The system is flexible enough to handle with a single image of an object despite its rotation, translation and scale variations. The image content is divided in parts that are described with a combination of features based on geometrical and color properties. The idea behind the feature combination is to benefit from a fuzzy similarity computation that provides robustness and tolerance to the retrieval process. The features can be independently computed and the image parts can be easily indexed by using a table structure on every feature value. Finally a process inspired in the alignment strategies is used to check the coherence of the object parts found in a scene. Our work presents a system of easy implementation that uses an open set of features and can suit a wide variety of applications. |
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Girona (Spain) |
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978-3-540-72848-1 |
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DAG; |
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Call Number |
DAG @ dag @ BoL2007a; IAM @ iam @ BoL2007a |
Serial |
776 |
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Author |
Jose Antonio Rodriguez; Gemma Sanchez; Josep Llados |
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Title |
Rejection strategies involving classifier combination for handwriting recognition |
Type |
Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:97–104 |
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Girona (Spain) |
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DAG |
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DAG @ dag @ RSL2007a |
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777 |
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Author |
Marçal Rusiñol; Philippe Dosch; Josep Llados |
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Title |
Boundary Shape Recognition Using Accumulated Length and Angle Information |
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Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:210–217 |
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Girona (Spain) |
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DAG |
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DAG @ dag @ RDL2007 |
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778 |
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Author |
Josep Llados; Partha Pratim Roy; Jose Antonio Rodriguez; Gemma Sanchez |
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Title |
Word Spotting in Archive Documents using Shape Contexts |
Type |
Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:290–297 |
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Girona (Spain) |
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DAG @ dag @ LRR2007 |
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779 |
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Author |
Josep Llados |
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Title |
Advances in Graphics Recognition |
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2007 |
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Digital Document Processing, Major Directions and Recent Advances, Advances in Pattern Recognition, B.B. Chaudhuri, ed., 281–304 |
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Springer London |
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DAG @ dag @ Lla2007 |
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780 |
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Author |
Josep Llados; Dorothea Blostein |
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Title |
Special Issue on Graphics Recognition |
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2007 |
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International Journal on Document Analysis and Recognition |
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IJDAR |
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9 |
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1 |
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1–2 |
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DAG @ dag @ LlB2007 |
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781 |
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Author |
Dani Rowe; Ivan Huerta; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Robust Multiple-People Tracking Using Colour-Based Particle Filters |
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Book Chapter |
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Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120 |
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Girona (Spain) |
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ISE @ ise @ RHG2007 |
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782 |
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Author |
Ivan Huerta; Dani Rowe; Mikhail Mozerov; Jordi Gonzalez |
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Title |
Improving Background Subtraction based on a Casuistry of Colour-Motion Segmentation Problems |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:475–482 |
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Girona (Spain) |
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ISE |
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ISE @ ise @ HRM2007 |
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783 |
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