Graphics Recognition. Recent Advances and New Opportunities: 7th International Workshop, GREC 2007, Curitiba, Brazil, September 20-21, 2007. Selected Papers

Front Matter....Pages -
Automatically Making Origami Diagrams....Pages 1-8
An Adaptative Recognition System Using a Table Description Language for Hierarchical Table Structures in Archival Documents....Pages 9-20
Converting ECG and Other Paper Legated Biomedical Maps into Digital Signals....Pages 21-28
Hand Drawn Symbol Recognition by Blurred Shape Model Descriptor and a Multiclass Classifier....Pages 29-39
On the Combination of Ridgelets Descriptors for Symbol Recognition....Pages 40-50
Old Handwritten Musical Symbol Classification by a Dynamic Time Warping Based Method....Pages 51-60
On the Joint Use of a Structural Signature and a Galois Lattice Classifier for Symbol Recognition....Pages 61-70
A Discriminative Representation for Symbolic Image Similarity Evaluation....Pages 71-79
ARG Based on Arcs and Segments to Improve the Symbol Recognition by Genetic Algorithm....Pages 80-90
Spotting Symbols in Line Drawing Images Using Graph Representations....Pages 91-103
A Region-Based Hashing Approach for Symbol Spotting in Technical Documents....Pages 104-113
A System for Historic Document Image Indexing and Retrieval Based on XML Database Conforming to MPEG7 Standard....Pages 114-125
An Ancient Graphic Documents Indexing Method Based on Spatial Similarity....Pages 126-134
A Fast CBIR System of Old Ornamental Letter....Pages 135-144
Developing Domain-Specific Gesture Recognizers for Smart Diagram Environments....Pages 145-156
Using Error Recovery Techniques to Improve Sketch Recognition Accuracy....Pages 157-168
Representing and Parsing Sketched Symbols Using Adjacency Grammars and a Grid-Directed Parser....Pages 169-180
Categorization of Digital Ink Elements Using Spectral Features....Pages 181-190
A Figure Image Processing System....Pages 191-201
A Segmentation Scheme Based on a Multi-graph Representation: Application to Colour Cadastral Maps....Pages 202-212
Smoothing a Network of Planar Polygonal Lines Obtained with Vectorization....Pages 213-234
Verification of the Document Components from Dual Extraction of MRTD Information....Pages 235-244
A System to Segment Text and Symbols from Color Maps....Pages 245-256
A Non-symmetrical Method of Image Local-Difference Comparison for Ancient Impressions Dating....Pages 257-265
Generating Ground Truthed Dataset of Chart Images: Automatic or Semi-automatic?....Pages 266-277
Performance Characterization of Shape Descriptors for Symbol Representation....Pages 278-287
Building Synthetic Graphical Documents for Performance Evaluation....Pages 288-298
A Study on the Effects of Noise Level, Cleaning Method, and Vectorization Software on the Quality of Vector Data....Pages 299-309
GREC 2007 Arc Segmentation Contest: Evaluation of Four Participating Algorithms....Pages 310-320
Report on the Third Contest on Symbol Recognition....Pages 321-328
Is Graphics Recognition an Unidentified Scientific Object?....Pages 329-334
Back Matter....Pages -