Title
Subject Identification Based on Gait Using a RGB-D Camera.
Abstract
Biometric authentication (i.e., verification of a given subject’s identity using biological characteristics) relying on gait characteristics obtained in a non-intrusive way can be very useful in the area of security, for smart surveillance and access control. In this contribution, we investigated the possibility of carrying out subject identification based on a predictive model built using machine learning techniques, and features extracted from 3-D body joint data provided by a single low-cost RGB-D camera (Microsoft Kinect v2). We obtained a dataset including 400 gait cycles from 20 healthy subjects, and 25 anthropometric measures and gait parameters per gait cycle. Different machine learning algorithms were explored: k-nearest neighbors, decision tree, random forest, support vector machines, multilayer perceptron, and multilayer perceptron ensemble. The algorithm that led to the model with best trade-off between the considered evaluation metrics was the random forest: overall accuracy of 99%, class accuracy of 100 ± 0%, and F1 score of 99 ± 2%. These results show the potential of using a RGB-D camera for subject identification based on quantitative gait analysis.
Year
DOI
Venue
2018
10.1007/978-3-030-17065-3_8
SoCPaR
Field
DocType
Citations 
F1 score,Decision tree,Gait,Pattern recognition,Computer science,Support vector machine,Multilayer perceptron,Gait analysis,Artificial intelligence,Biometrics,Random forest
Conference
0
PageRank 
References 
Authors
0.34
0
5