Spotting segments displaying facial expression from image sequences using HMM

Takahiro Otsuka; Jun Ohya

doi:10.1109/AFGR.1998.670988

Spotting segments displaying facial expression from image sequences using HMM

Takahiro Otsuka, Jun Ohya

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

43 Citations (Scopus)

Abstract

A method that can be used for spotting segments that display facial expression is proposed. The motion of the face is modeled by HMM in such a way that each state corresponds to the conditions of facial muscles, e.g., relaxed, contracting, apex and relaxing. The probability assigned to each state is updated iteratively as the feature vector is obtained from image processing. A spotted segment is placed into a certain category when the probability of that category exceeds a threshold value. Experiments show that the segments for the six basic expressions can be spotted accurately in near real time.

Original language	English
Title of host publication	Proceedings - 3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998
Publisher	IEEE Computer Society
Pages	442-447
Number of pages	6
ISBN (Print)	0818683449, 9780818683442
DOIs	https://doi.org/10.1109/AFGR.1998.670988
Publication status	Published - 1998
Externally published	Yes
Event	3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998 - Nara Duration: 1998 Apr 14 → 1998 Apr 16

Other

Other	3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998
City	Nara
Period	98/4/14 → 98/4/16

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ASJC Scopus subject areas

Computer Vision and Pattern Recognition

Cite this

Otsuka, T., & Ohya, J. (1998). Spotting segments displaying facial expression from image sequences using HMM. In Proceedings - 3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998 (pp. 442-447). [670988] IEEE Computer Society. https://doi.org/10.1109/AFGR.1998.670988

Otsuka, T & Ohya, J 1998, Spotting segments displaying facial expression from image sequences using HMM. in Proceedings - 3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998., 670988, IEEE Computer Society, pp. 442-447, 3rd IEEE International Conference on Automatic Face and Gesture Recognition, FG 1998, Nara, 98/4/14. https://doi.org/10.1109/AFGR.1998.670988

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Access to Document

10.1109/AFGR.1998.670988