HBF49 feature set: A first unified baseline for online symbol recognition
Résumé
As the rise of pen-enabled interfaces is accompanied with an increased number of techniques for recognition of pen-based input, recent trends in symbol recognition show an escalation in systems complexity (number of features, classifiers combination) or the over-specialization of systems to specific datasets or applications. Despite the importance of representation space in feature-based methods, few works focus on the design of feature sets adapted to a large variety of symbols, and no universal representation space was proposed as a benchmarking reference. We introduce in this work HBF49, a unique set of features for the representation of hand-drawn symbols to be used as a reference for evaluation of symbol recognition systems. An empirical constructive approach is adopted for designing this set of 49 simple features, able to handle a large diversity of symbols in various experimental contexts. An original effort is made for guaranteeing transparency of features design and reproducibility of experiments. We demonstrate that using off-the-shelf statistical classifiers, the HBF49 representation performs comparably or better than state-of-the-art results reported on eight databases of hand-drawn objects. We also obtain a good recognition performance for user-defined gestures that further attests the ability of HBF49 to deal with a great variety of symbols.
Fichier principal
preprint_HBF49_v2.pdf (619.39 Ko)
Télécharger le fichier
convex_hull.pdf (7.67 Ko)
Télécharger le fichier
cvc_12L.tif (24.46 Ko)
Télécharger le fichier
definitions.pdf (10.31 Ko)
Télécharger le fichier
hhreco_12L.tif (22.07 Ko)
Télécharger le fichier
ironoff_12L.tif (18.96 Ko)
Télécharger le fichier
laviola_12L.tif (20.65 Ko)
Télécharger le fichier
loustic_12L.tif (28.42 Ko)
Télécharger le fichier
meubles_12L.tif (30.67 Ko)
Télécharger le fichier
nicicon_12L.tif (24.88 Ko)
Télécharger le fichier
resampled.pdf (8.78 Ko)
Télécharger le fichier
sign_12L.tif (19.96 Ko)
Télécharger le fichier
zoning2.pdf (10.56 Ko)
Télécharger le fichier
| Origine | Fichiers produits par l'(les) auteur(s) |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
| Format | Autre |
|---|
Loading...