NDLI: Can local avatars satisfy a global audience? A case study of high-fidelity 3D facial avatar animation in subject identification and emotion perception by US and international groups

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Can local avatars satisfy a global audience? A case study of high-fidelity 3D facial avatar animation in subject identification and emotion perception by US and international groups

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Volume 7, Issue 1, February 2009

Can local avatars satisfy a global audience? A case study of high-fidelity 3D facial avatar animation in subject identification and emotion perception by US and international groups

Content Provider	ACM Digital Library
Author	Hiscock, Merrill Yun, Chang Deng, Zhigang
Abstract	This study investigates effectiveness of a local high-fidelity 3D facial avatar for a global audience by observing how US and International student groups differed in identifying subjects and perceiving emotions while viewing nonverbal high-fidelity 3D facial avatar animations embedded with the motion data of three US individuals. To synthesize the animated 3D avatars to convey highly believable facial expressions, a 3D scanned facial model was mapped with high-fidelity motion-capture data of three native US subjects as they spoke designated English sentences with specified emotions. Simple animations in conjunction with actual footage of the subjects speaking during the facial motion-capture sessions were shown several times to both native US and international students in similar settings. After a familiarization process, we showed the students randomly arranged talking avatars without voices and asked them to identify the corresponding identities and emotional types of the subjects whose facial expressions were utilized in the creation of the avatars, and to rate their confidence in their selections. We found that the US group had higher success rates in subject identification, although the related difference in confidence ratings between two groups was not significant. The differences in the success rates and confidence ratings on the perception of emotion between the two groups were not significant either. The results of our study provide interesting insights into avatar-based interaction where the national and/or cultural background of a person impacts the perception of identity while having little effect on the perception of emotion. However, we observed that dynamics (e.g., head motion) could offset the disadvantage of cultural unfamiliarity in subject identification. We observed that both groups performed at a nearly identical level in subject identification and emotion perception when they were shown the avatar animation with heightened expression and dynamic intensities. In addition, we observed that the confidence ratings were correlated to accuracy in identifying the subject but not to accuracy in perceiving emotion.
Starting Page	1
Ending Page	26
Page Count	26
File Format	PDF
ISSN	15443574
DOI	10.1145/1541895.1541901
Journal	Computers in Entertainment (CIE) (CIE)
Volume Number	7
Issue Number	2
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2008-03-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Confidence rating Subject identification Emotion perception User study Motion capture Facial emotion Facial expression
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Can local avatars satisfy a global audience? a case study of high-fidelity 3d facial avatar animation in subject identification and emotion perception by us and international groups.

Can local avatars satisfy a global audience? a case study of high-fidelity 3d facial avatar animation in subject identification and emotion perception by us and international groups

Automatic Realtime User Performance-Driven Avatar Animation

Perception of Emotional Gaits Using Avatar Animation of Real and Artificially Synthesized Gaits

Semantic 3D motion retargeting for facial animation

Facial avatars.

Construct a naturalistic 3D avatar with live help interfaces based on multi-layered representation

1 introduction facial animation based on 3d scans and motion capture.

Chapter 6 facial expression synthesis based on emotion dimensions for affective talking avatar.

Can local avatars satisfy a global audience? A case study of high-fidelity 3D facial avatar animation in subject identification and emotion perception by US and international groups

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Can local avatars satisfy a global audience? a case study of high-fidelity 3d facial avatar animation in subject identification and emotion perception by us and international groups.

Can local avatars satisfy a global audience? a case study of high-fidelity 3d facial avatar animation in subject identification and emotion perception by us and international groups

Automatic Realtime User Performance-Driven Avatar Animation

Perception of Emotional Gaits Using Avatar Animation of Real and Artificially Synthesized Gaits

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Facial avatars.

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Can local avatars satisfy a global audience? A case study of high-fidelity 3D facial avatar animation in subject identification and emotion perception by US and international groups