DocumentCode :
2099147
Title :
Hierarchical model for real time simulation of virtual human crowds
Author :
Musse, Soraia Raupp ; Thalmann, Daniel
Author_Institution :
Comput. Graphics Lab., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
fYear :
2002
fDate :
15-23 June 2002
Abstract :
This paper describes a model for simulating crowds of humans in real time. We deal with a hierarchy composed of virtual crowds, groups and individuals. The groups are the most complex structure that can be controlled in different degrees of autonomy. This autonomy refers to the extent to which the virtual agents are independent of the user intervention and also the amount of information needed to simulate crowds. Thus, depending on the complexity of the simulation, simple behaviors can be sufficient to simulate crowds. Otherwise, more complicated behavioral rules can be necessary, and in this case, it can be included in the simulation data in order to improve the realism of the animation. We present three different ways for controlling crowd behaviors: i) by using innate and scripted behaviors; ii) by defining behavioral rules, using events and reactions, and, iii) by providing an external control to guide crowd behaviors in real time. The two main contributions of our approach are: the possibility of increasing the complexity of group/agent behaviors according to the problem to be simulated, and the hierarchical structure based on groups to compose a crowd.
Keywords :
behavioural sciences computing; virtual reality; animation; autonomy; behavioral rules; complexity; crowd behaviors; group/agent behaviors; hierarchical model; innate behavior; scripted behavior; virtual agents; virtual human crowds; Animation; Application software; Autonomous agents; Collaboration; Computational modeling; Computer graphics; Computer simulation; Discrete event simulation; Humans; Virtual environment;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Imaging, 2002. 5th IEEE EMBS International Summer School on
Print_ISBN :
0-7803-7507-6
Type :
conf
DOI :
10.1109/SSBI.2002.1233994
Filename :
1233994
Link To Document :
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