Title
Spatial pyramid matching for finger spelling recognition in intensity images
Date Issued
01 January 2014
Access level
open access
Resource Type
conference paper
Author(s)
Silva S.
Schwartz W.R.
Federal University of Ouro Preto
Publisher(s)
Springer Verlag
Abstract
Sign language is a complex way of communication mostly used for deaf people where hands, limbs, head and facial expressions are used to communicate. Finger spelling is a system where each letter of the alphabet is represented by a unique and discrete movement of the hand. In this paper, we are interested in studying the properties of the spatial pyramid matching descriptor for finger spelling recognition. This method is a simple extension of an orderless bag-of-features image representation where local features are mapped to multi-resolution histograms and compute a weighted histogram intersection. The performance of the approach is evaluated on a dataset of real images of the American Sign Language (ASL) finger spelling. We conduct experiments considering three evaluation protocols. The first uses 10% of the data as training and the remaining as test, we achieve an accuracy rate of 92.50%. The second protocol considers 50% as training data, the accuracy rate was about 97.1%. Finally, in the third protocol, we perform a 5-fold cross-validation, where we achieve an accuracy rate of 97.9%. Our method achieves the best results in all three protocols when compared to state-of-the-art approaches. In all the experiments, we also evaluate the influence of the weights of the multi-resolution histograms. They do not have a significant influence in the experimental results.
Start page
629
End page
636
Volume
8827
Language
English
OCDE Knowledge area
Ciencias de la computación
Scopus EID
2-s2.0-84949133016
Resource of which it is part
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN of the container
03029743
ISBN of the container
978-331912567-1
DOI of the container
19th Iberoamerican Congress on Pattern Recognition, CIARP 2014
Sponsor(s)
Conselho Nacional de Desenvolvimento Científico e Tecnológico - APQ-01294-12, APQ-02292-12
Sources of information: Directorio de Producción Científica Scopus