TY  - BOOK
AU  - Marçal Rusiñol
AU  - Josep Llados
PY  - 2010//
TI  - Symbol Spotting in Digital Libraries:Focused Retrieval over Graphic-rich Document Collections
PB  - Springer
KW  - Focused Retrieval
KW  - Graphical Pattern Indexation
KW  - Graphics Recognition
KW  - Pattern Recognition
KW  - Performance Evaluation
KW  - Symbol Description
KW  - Symbol Spotting
N2  - The specific problem of symbol recognition in graphical documents requires additional techniques to those developed for character recognition. The most well-known obstacle is the so-called Sayre paradox: Correct recognition requires good segmentation, yet improvement in segmentation is achieved using information provided by the recognition process. This dilemma can be avoided by techniques that identify sets of regions containing useful information. Such symbol-spotting methods allow the detection of symbols in maps or technical drawings without having to fully segment or fully recognize the entire content.This unique text/reference provides a complete, integrated and large-scale solution to the challenge of designing a robust symbol-spotting method for collections of graphic-rich documents. The book examines a number of features and descriptors, from basic photometric descriptors commonly used in computer vision techniques to those specific to graphical shapes, presenting a methodology which can be used in a wide variety of applications. Additionally, readers are supplied with an insight into the problem of performance evaluation of spotting methods. Some very basic knowledge of pattern recognition, document image analysis and graphics recognition is assumed.
SN  - 978-1-84996-208-7
N1  - DAG
ID  - Marçal Rusiñol2010
ER  -