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Author
David Guillamet; Jordi Vitria
Title
Evaluation of distance metrics for recognition based on non-negative matrix factorization
Type
Journal Article
Year
2003
Publication
Pattern Recognition Letters
Abbreviated Journal
PRL
Volume
24
Issue
9-10
Pages
1599 –1605
Keywords
Abstract
IF: 0.809
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
OR;MV
Approved
no
Call Number
BCNPCL @ bcnpcl @ GuV2003b
Serial
380
Permanent link to this record
Author
A. Pujol; Jordi Vitria; Felipe Lumbreras; Juan J. Villanueva
Title
Topological principal component analysis for face encoding and recognition
Type
Journal Article
Year
2001
Publication
Pattern Recognition Letters
Abbreviated Journal
PRL
Volume
22
Issue
6-7
Pages
769–776
Keywords
Abstract
IF: 0.552
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
ADAS;OR;MV
Approved
no
Call Number
ADAS @ adas @ PVL2001
Serial
155
Permanent link to this record
Author
A. Martinez; Jordi Vitria
Title
Learning mixture models using a genetic version of the EM algorithm.
Type
Journal Article
Year
2000
Publication
Pattern Recognition Letters
Abbreviated Journal
PRL
Volume
21
Issue
8
Pages
759–769
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
OR;MV
Approved
no
Call Number
BCNPCL @ bcnpcl @ MVi2000
Serial
335
Permanent link to this record
Author
Victor Ponce; Sergio Escalera; Marc Perez; Oriol Janes; Xavier Baro
Title
Non-Verbal Communication Analysis in Victim-Offender Mediations
Type
Journal Article
Year
2015
Publication
Pattern Recognition Letters
Abbreviated Journal
PRL
Volume
67
Issue
1
Pages
19-27
Keywords
Victim–Offender Mediation; Multi-modal human behavior analysis; Face and gesture recognition; Social signal processing; Computer vision; Machine learning
Abstract
We present a non-invasive ambient intelligence framework for the semi-automatic analysis of non-verbal communication applied to the restorative justice field. We propose the use of computer vision and social signal processing technologies in real scenarios of Victim–Offender Mediations, applying feature extraction techniques to multi-modal audio-RGB-depth data. We compute a set of behavioral indicators that define communicative cues from the fields of psychology and observational methodology. We test our methodology on data captured in real Victim–Offender Mediation sessions in Catalonia. We define the ground truth based on expert opinions when annotating the observed social responses. Using different state of the art binary classification approaches, our system achieves recognition accuracies of 86% when predicting satisfaction, and 79% when predicting both agreement and receptivity. Applying a regression strategy, we obtain a mean deviation for the predictions between 0.5 and 0.7 in the range [1–5] for the computed social signals.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
HuPBA;MV
Approved
no
Call Number
Admin @ si @ PEP2015
Serial
2583
Permanent link to this record
Author
Antonio Hernandez; Miguel Angel Bautista; Xavier Perez Sala; Victor Ponce; Sergio Escalera; Xavier Baro; Oriol Pujol; Cecilio Angulo
Title
Probability-based Dynamic Time Warping and Bag-of-Visual-and-Depth-Words for Human Gesture Recognition in RGB-D
Type
Journal Article
Year
2014
Publication
Pattern Recognition Letters
Abbreviated Journal
PRL
Volume
50
Issue
1
Pages
112-121
Keywords
RGB-D; Bag-of-Words; Dynamic Time Warping; Human Gesture Recognition
Abstract
PATREC5825
We present a methodology to address the problem of human gesture segmentation and recognition in video and depth image sequences. A Bag-of-Visual-and-Depth-Words (BoVDW) model is introduced as an extension of the Bag-of-Visual-Words (BoVW) model. State-of-the-art RGB and depth features, including a newly proposed depth descriptor, are analysed and combined in a late fusion form. The method is integrated in a Human Gesture Recognition pipeline, together with a novel probability-based Dynamic Time Warping (PDTW) algorithm which is used to perform prior segmentation of idle gestures. The proposed DTW variant uses samples of the same gesture category to build a Gaussian Mixture Model driven probabilistic model of that gesture class. Results of the whole Human Gesture Recognition pipeline in a public data set show better performance in comparison to both standard BoVW model and DTW approach.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
HuPBA;MV; 605.203
Approved
no
Call Number
Admin @ si @ HBP2014
Serial
2353
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