TY - JOUR
T1 - A Framework to Model and Control the State of Presence in Virtual Reality Systems
AU - Hernandez-Melgarejo, Gustavo
AU - Luviano-Juarez, Alberto
AU - Fuentes-Aguilar, Rita Quetziquel
N1 - Publisher Copyright:
© 2010-2012 IEEE.
PY - 2022
Y1 - 2022
N2 - This work is concerned with the modelling and control of the state of presence of a user in a virtual reality system (VRS). The manner how the state of a user interacting with the VRS is measured by some of its physiological signals is discussed. Based on the user-VRS interaction, a novel feedback control schema to manipulate the user state is proposed. In this, the error between the required and the actual user behavior is used by a controller to select the appropriate stimulus that must be executed by the VRS core scenario to reduce the error. The schema includes the modelling of the presence state by a discrete event strategy based on Petri Nets. Based on the obtained model, the control strategy to select the appropriate stimuli is devised. Finally, some real experiments with a VRS prototype are carried out to show the effectiveness of the proposal.
AB - This work is concerned with the modelling and control of the state of presence of a user in a virtual reality system (VRS). The manner how the state of a user interacting with the VRS is measured by some of its physiological signals is discussed. Based on the user-VRS interaction, a novel feedback control schema to manipulate the user state is proposed. In this, the error between the required and the actual user behavior is used by a controller to select the appropriate stimulus that must be executed by the VRS core scenario to reduce the error. The schema includes the modelling of the presence state by a discrete event strategy based on Petri Nets. Based on the obtained model, the control strategy to select the appropriate stimuli is devised. Finally, some real experiments with a VRS prototype are carried out to show the effectiveness of the proposal.
KW - ECG
KW - Virtual reality
KW - closed loop control
KW - emotion recognition
KW - petri nets
KW - presence
UR - http://www.scopus.com/inward/record.url?scp=85135764174&partnerID=8YFLogxK
U2 - 10.1109/TAFFC.2022.3195697
DO - 10.1109/TAFFC.2022.3195697
M3 - Artículo
AN - SCOPUS:85135764174
SN - 1949-3045
VL - 13
SP - 1854
EP - 1867
JO - IEEE Transactions on Affective Computing
JF - IEEE Transactions on Affective Computing
IS - 4
ER -