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Paper Abstract and Keywords
Presentation 2021-03-08 11:45
Generating Naturally Animated Crowd Scenes with Non-Player Characters Based on Arousal-Valence Model -- Reproduction of Audience Interaction --
Ryo Oji, Ruizhe Li, Masanori Nakayama, Issei Fujishiro (Keio Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Humanoid non-player characters (NPC's) in video games generally behave like a robot performing only their predetermined tasks. Such unnatural behaviors often make the game players feel uncomfortable, and thus prevent their immersion into the video game world. In this study, we attempt to generate natural-looking animated crowd scenes with NPC's each of whose behavior reflects their affection determined from a variety of influential factors. By making use of an arousal-valence model which expresses human affection in two dimensions, we define the affection state of an NPC as a pair of arousal (A) and valence (V) values. For a given scene, our system reproduces interactive audience by classifying individual affection states using a support vector machine network, and then by keeping track of the A-V values for each of the NPC's interacting with one another.
Keyword (in Japanese) (See Japanese page) 
(in English) Non-Player Character / Support Vector Machine / Flock Animation / Arousal-Valence Model / / / /  
Reference Info. ITE Tech. Rep., vol. 45, pp. 33-36, March 2021.
Paper #  
Date of Issue 2021-03-01 (AIT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2021-03-08 - 2021-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Expressive Japan 2021 
Paper Information
Registration To IIEEJ 
Conference Code 2021-03-AIT-IIEEJ-AS-ARTS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generating Naturally Animated Crowd Scenes with Non-Player Characters Based on Arousal-Valence Model 
Sub Title (in English) Reproduction of Audience Interaction 
Keyword(1) Non-Player Character  
Keyword(2) Support Vector Machine  
Keyword(3) Flock Animation  
Keyword(4) Arousal-Valence Model  
1st Author's Name Ryo Oji  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Ruizhe Li  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Masanori Nakayama  
3rd Author's Affiliation Keio University (Keio Univ.)
4th Author's Name Issei Fujishiro  
4th Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2021-03-08 11:45:00 
Presentation Time 15 minutes 
Registration for IIEEJ 
Paper # AIT2021-37 
Volume (vol) vol.45 
Number (no) no.8 
Page pp.33-36 
Date of Issue 2021-03-01 (AIT) 

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