The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.
Spontaneous vs. posed facial behavior: automatic analysis of brow actions
Abstract
Past research on automatic facial expression analysis has focused mostly on the recognition of prototypic expressions of discrete emotions rather than on the analysis of dynamic changes over time, although the importance of temporal dynamics of facial expressions for interpretation of the observed facial behavior has been acknowledged for over 20 years. For instance, it has been shown that the temporal dynamics of spontaneous and volitional smiles are fundamentally different from each other. In this work, we argue that the same holds for the temporal dynamics of brow actions and show that velocity, duration, and order of occurrence of brow actions are highly relevant parameters for distinguishing posed from spontaneous brow actions. The proposed system for discrimination between volitional and spontaneous brow actions is based on automatic detection of Action Units (AUs) and their temporal segments (onset, apex, offset) produced by movements of the eyebrows. For each temporal segment of an activated AU, we compute a number of mid-level feature parameters including the maximal intensity, duration, and order of occurrence. We use Gentle Boost to select the most important of these parameters. The selected parameters are used further to train Relevance Vector Machines to determine per temporal segment of an activated AU whether the action was displayed spontaneously or volitionally. Finally, a probabilistic decision function determines the class (spontaneous or posed) for the entire brow action. When tested on 189 samples taken from three different sets of spontaneous and volitional facial data, we attain a 90.7% correct recognition rate.
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Zeng, Z., Pantic, M., Roisman, G. I., & Huang, T. S. (2009) · IEEE Transactions on Pattern Analysis and Machine Intelligence · doi:10.1109/tpami.2008.52 · Cited by 2,797
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Automatic Analysis of Facial Affect: A Survey of Registration, Representation, and Recognition
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Metadata
- Authors
- Valstar, M. F., Pantic, M., Ambadar, Z., & Cohn, J. F.
- Affiliations
- Imperial College London (GB)
- Imperial College London, UK and University of Twente, The Netherlands
- University of Pittsburgh (US)
- Venue
- Proceedings of the 8th international conference on Multimodal interfaces
- Publisher
- ACM
- Published
- 2006-11-02
- Pages
- 162-170
- OpenAlex
- W2131462465
- Cited by
- 168
- References
- 49
- Citations by year
- 2026: 1 · 2024: 3 · 2022: 4 · 2021: 8 · 2020: 5 · 2019: 8 · 2018: 9 · 2017: 15 · 2016: 13 · 2015: 14 · 2014: 13 · 2013: 14 · 2012: 6
- FWCI
- 23.32
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION (publishedVersion)
- University of Twente Research Information (publishedVersion)
- Spiral (Imperial College London) (submittedVersion)
- University of Twente Research Information (submittedVersion)
- Funders
- National Institute of Mental Health
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Emotion and Mood Recognition
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Face recognition and analysis
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Face and Expression Recognition
- Keywords
- facial action units, eyebrow movements, facial expression analysis, relevance vector machine, mid-level features
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