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Expression of Emotion in Virtual Crowds:Investigating Emotion Contagion and Perception of Emotional Behaviour in Crowd Simulation
KTH, School of Computer Science and Communication (CSC).
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Emotional behaviour in the context of crowd simulationis a topic that is gaining particular interest in the area of artificial intelligence. Recent efforts in this domain havelooked for the modelling of emotional emergence and socialinteraction inside a crowd of virtual agents, but further investigation is still needed in aspects such as simulation of emotional awareness and emotion contagion. Also, in relation to perception of emotions, many questions remain about perception of emotional behaviour in the context of virtual crowds.This thesis investigates the current state-of-the-art of emotional characters in virtual crowds and presents the implementation of a computational model able to generate expressive full-body motion behaviour and emotion contagion in a crowd of virtual agents. Also, as a second part of the thesis, this project presents a perceptual study in which the perception of emotional behaviour is investigated in the context of virtual crowds. The results of this thesis reveal some interesting findings in relation to the perception and modelling of virtual crowds, including some relevant effectsin relation to the influence of emotional crowd behaviourin viewers, specially when virtual crowds are not the mainfocus of a particular scene. These results aim to contribute for the further development of this interdisciplinary area of computer graphics, artificial intelligence and psychology.

Abstract [sv]

Emotionellt beteende i simulerade folkmassor är ett ämne med ökande intresse, inom området för artificiell intelligens. Nya studier har tittat på modellen för social interaktion inuti en grupp av virtuella agenter, men fortsatt utredning behövs fortfarande inom aspekter så som simulation av emotionell medvetenhet och emotionell smitta. Också, när det gäller synen på känslor, kvarstår många frågor kring synen på känslomässigt beteende i samband med virtuella folkmassor. Denna studie undersöker de nuvarande "state-of-theart" emotionella egenskaperna i virtuella folksamlingar och presenterar implementationen av en datormodell som kan generera smittsamma känslor i en grupp av virtuella agenter. Också, när det gäller synen på känslor, kvarstår många frågor kring synen på känslomässigt beteende i samband med virtuella folksamlingar. Som en andra del av denna avhandlingen presenteras, i detta projekt, en perceptuell studie där uppfattningen av emotionella beteenden undersöks i samband med virtuella folksamlingar.

Place, publisher, year, edition, pages
2014.
National Category
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-153966OAI: oai:DiVA.org:kth-153966DiVA: diva2:754581
Examiners
Available from: 2014-11-21 Created: 2014-10-10 Last updated: 2014-11-21Bibliographically approved

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