Ebook: Graphics Recognition. New Trends and Challenges: 9th International Workshop, GREC 2011, Seoul, Korea, September 15-16, 2011, Revised Selected Papers

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Workshop on Graphics Recognition (GREC 2011), held in Seoul, Korea, September 15-16, 2011. The 25 revised full papers presented were carefully selected from numerous submissions. Graphics recognition is a subfield of document image analysis that deals with graphical entities in engineering drawings, sketches, maps, architectural plans, musical scores, mathematical notation, tables, and diagrams. Accordingly the conference papers are organized in 5 technical sessions, covering the topics such as map and ancient documents, symbol and logo recognition, sketch and drawings, performance evaluation and challenge processing.

---

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Workshop on Graphics Recognition (GREC 2011), held in Seoul, Korea, September 15-16, 2011. The 25 revised full papers presented were carefully selected from numerous submissions. Graphics recognition is a subfield of document image analysis that deals with graphical entities in engineering drawings, sketches, maps, architectural plans, musical scores, mathematical notation, tables, and diagrams. Accordingly the conference papers are organized in 5 technical sessions, covering the topics such as map and ancient documents, symbol and logo recognition, sketch and drawings, performance evaluation and challenge processing.

---

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Workshop on Graphics Recognition (GREC 2011), held in Seoul, Korea, September 15-16, 2011. The 25 revised full papers presented were carefully selected from numerous submissions. Graphics recognition is a subfield of document image analysis that deals with graphical entities in engineering drawings, sketches, maps, architectural plans, musical scores, mathematical notation, tables, and diagrams. Accordingly the conference papers are organized in 5 technical sessions, covering the topics such as map and ancient documents, symbol and logo recognition, sketch and drawings, performance evaluation and challenge processing.
Content:
Front Matter....Pages -
A Region-Based Method for Sketch Map Segmentation....Pages 1-14
Ancient Documents Denoising and Decomposition Using Aujol and Chambolle Algorithm....Pages 15-24
Efficient and Robust Graphics Recognition from Historical Maps....Pages 25-35
On the Use of Geometric Matching for Both: Isolated Symbol Recognition and Symbol Spotting....Pages 36-48
Classification of Administrative Document Images by Logo Identification....Pages 49-58
Symbol Recognition in Natural Scenes by Shape Matching across Multi-scale Segmentations....Pages 59-68
Building a Symbol Library from Technical Drawings by Identifying Repeating Patterns....Pages 69-78
Notation-Invariant Patch-Based Wall Detector in Architectural Floor Plans....Pages 79-88
Interest of Syntactic Knowledge for On-Line Flowchart Recognition....Pages 89-98
A Recognition System for Online Handwritten Tibetan Characters....Pages 99-107
Incremental Learning for Interactive Sketch Recognition....Pages 108-118
Inconsistency-Driven Chemical Graph Construction in ChemInfty....Pages 119-128
Robust Frame and Text Extraction from Comic Books....Pages 129-138
Unified Representation of Online and Offline Hand Drawn Graphics Using Bezier Curve Approximation....Pages 139-148
Computing Precision and Recall with Missing or Uncertain Ground Truth....Pages 149-162
A Semi-automatic Groundtruthing Framework for Performance Evaluation of Symbol Recognition and Spotting Systems....Pages 163-172
The 2012 Music Scores Competitions: Staff Removal and Writer Identification....Pages 173-186
Final Report of GREC’11 Arc Segmentation Contest: Performance Evaluation on Multi-resolution Scanned Documents....Pages 187-197
Report on the Symbol Recognition and Spotting Contest....Pages 198-207
Bag-of-GraphPaths Descriptors for Symbol Recognition and Spotting in Line Drawings....Pages 208-217
A Scoring Model for Clothes Matching Using Color Harmony and Texture Analysis....Pages 218-227
Spatio-structural Symbol Description with Statistical Feature Add-On....Pages 228-237
De-blurring Textual Document Images....Pages 238-250
Statistically Analyzing RGB Histograms to Remove Highlighting in Aged Paper Monochromatic Documents....Pages 251-259
A Parts-Based Multi-scale Method for Symbol Recognition....Pages 260-274
Back Matter....Pages -

---

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Workshop on Graphics Recognition (GREC 2011), held in Seoul, Korea, September 15-16, 2011. The 25 revised full papers presented were carefully selected from numerous submissions. Graphics recognition is a subfield of document image analysis that deals with graphical entities in engineering drawings, sketches, maps, architectural plans, musical scores, mathematical notation, tables, and diagrams. Accordingly the conference papers are organized in 5 technical sessions, covering the topics such as map and ancient documents, symbol and logo recognition, sketch and drawings, performance evaluation and challenge processing.
Content:
Front Matter....Pages -
A Region-Based Method for Sketch Map Segmentation....Pages 1-14
Ancient Documents Denoising and Decomposition Using Aujol and Chambolle Algorithm....Pages 15-24
Efficient and Robust Graphics Recognition from Historical Maps....Pages 25-35
On the Use of Geometric Matching for Both: Isolated Symbol Recognition and Symbol Spotting....Pages 36-48
Classification of Administrative Document Images by Logo Identification....Pages 49-58
Symbol Recognition in Natural Scenes by Shape Matching across Multi-scale Segmentations....Pages 59-68
Building a Symbol Library from Technical Drawings by Identifying Repeating Patterns....Pages 69-78
Notation-Invariant Patch-Based Wall Detector in Architectural Floor Plans....Pages 79-88
Interest of Syntactic Knowledge for On-Line Flowchart Recognition....Pages 89-98
A Recognition System for Online Handwritten Tibetan Characters....Pages 99-107
Incremental Learning for Interactive Sketch Recognition....Pages 108-118
Inconsistency-Driven Chemical Graph Construction in ChemInfty....Pages 119-128
Robust Frame and Text Extraction from Comic Books....Pages 129-138
Unified Representation of Online and Offline Hand Drawn Graphics Using Bezier Curve Approximation....Pages 139-148
Computing Precision and Recall with Missing or Uncertain Ground Truth....Pages 149-162
A Semi-automatic Groundtruthing Framework for Performance Evaluation of Symbol Recognition and Spotting Systems....Pages 163-172
The 2012 Music Scores Competitions: Staff Removal and Writer Identification....Pages 173-186
Final Report of GREC’11 Arc Segmentation Contest: Performance Evaluation on Multi-resolution Scanned Documents....Pages 187-197
Report on the Symbol Recognition and Spotting Contest....Pages 198-207
Bag-of-GraphPaths Descriptors for Symbol Recognition and Spotting in Line Drawings....Pages 208-217
A Scoring Model for Clothes Matching Using Color Harmony and Texture Analysis....Pages 218-227
Spatio-structural Symbol Description with Statistical Feature Add-On....Pages 228-237
De-blurring Textual Document Images....Pages 238-250
Statistically Analyzing RGB Histograms to Remove Highlighting in Aged Paper Monochromatic Documents....Pages 251-259
A Parts-Based Multi-scale Method for Symbol Recognition....Pages 260-274
Back Matter....Pages -
....