Title
Discriminative Weighting and Subspace Learning for Ensemble Symbol Recognition
Abstract
Multi-scale parts-based models are particularly effective for recognizing non-segmented graphic symbols, i.e. the symbols interfered by other connecting or intersecting objects in the context. However, treating every symbol part and it features on every scale equally, despite some of them contributing little to the recognition, may lead to unnecessarily high dimensional representation of the symbol and affects the overall performance. In this paper, we propose a discriminant subspace learning and part weighting scheme for the parts-based ensemble symbol recognition model. The probabilistic vote on symbol category by each shape point of the symbol is adaptively weighted based on its surrounding context, and a more compact and representative description of the symbol is exploited based on the codebook learnt from the multi-scale shape context pyramids by K-SVD. The experiments demonstrate the effectiveness and adaptability of the proposed method on non-segmented intersecting symbols.
Year
DOI
Venue
2013
10.1109/ICDAR.2013.217
ICDAR-1
Keywords
Field
DocType
symbol part,random forest,non-segmented graphic symbol,k-svd,multiscale shape context pyramids,multiscale parts-based models,learning (artificial intelligence),symbol category,discriminant subspace learning,image recognition,multi-scale parts-based model,symbol recognition,surround suppression,ensemble classification,subspace learning,part weighting scheme,parts-based ensemble symbol recognition,surrounding context,intersecting object,symbol representation,nonsegmented graphic symbol recognition,ensemble symbol recognition,multi-scale shape context pyramid,non-segmented intersecting symbol,singular value decomposition,discriminative weighting,learning artificial intelligence
Weighting,Pattern recognition,Subspace topology,Symbol,Computer science,Speech recognition,Artificial intelligence,Probabilistic logic,Random forest,Shape context,Discriminative model,Codebook
Conference
ISSN
Citations 
PageRank 
1520-5363
0
0.34
References 
Authors
8
2
Name
Order
Citations
PageRank
Feng Su117018.63
tong lu237267.17