Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 911

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Coding, analysis, interpretation, and recognition of facial expressions

Essa, I.A., Pentland, A.P.·1997·IEEE Transactions on Pattern Analysis and Machine Intelligence

Abstract

We describe a computer vision system for observing facial motion by using an optimal estimation optical flow method coupled with geometric, physical and motion-based dynamic models describing the facial structure. Our method produces a reliable parametric representation of the face's independent muscle action groups, as well as an accurate estimate of facial motion. Previous efforts at analysis of facial expression have been based on the facial action coding system (FACS), a representation developed in order to allow human psychologists to code expression from static pictures. To avoid use of this heuristic coding scheme, we have used our computer vision system to probabilistically characterize facial motion and muscle activation in an experimental population, thus deriving a new, more accurate, representation of human facial expressions that we call FACS+. Finally, we show how this method can be used for coding, analysis, interpretation, and recognition of facial expressions.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1109/34.598232

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 2 references

Research works printed but not linked: 30

  1. 10.1002/scj.4690220607 · DOI · Paper page
  2. moghaddam, 1994, face recognition using view-based and modular eigenspaces, Automatic Systems for the Identification and Inspection of Humans, 2, 10.1117/12.191877 · doi:10.1117/12.191877
  3. 10.1109/34.216727 · DOI · Paper page
  4. 10.1109/CVPR.1994.323814 · DOI · Paper page
  5. pelachaud, 1994, final report to nsf of the standards for facial animation workshop
  6. 10.1145/147156.147180 · doi:10.1145/147156.147180
  7. 10.1109/34.85660 · DOI · Paper page
  8. simoncelli, 1993, distributed representation and analysis of visual motion, "Distributed Representation and Analysis of Visual Motion "
  9. 10.1145/965161.806812 · DOI · Paper page
  10. 10.1109/34.216726 · DOI · Paper page
  11. 10.1057/palgrave.jibs.8490687 · doi:10.1057/palgrave.jibs.8490687
  12. ekman, 1989, the argument and evidence about universals in facial expressions of emotion, Handbook of Social Psychophysiology
  13. bruce, 1988, Recognising Faces
  14. 10.1109/CVPR.1994.323812 · DOI
  15. brown, 1983, ?Introduction to random signal analysis and Kalman Filtering ?
  16. 10.1002/vis.4340020405 · doi:10.1002/vis.4340020405
  17. 10.1109/CVPR.1993.341105 · DOI · Paper page
  18. 10.1109/ICCV.1995.466915 · DOI · Paper page
  19. bathe, 1982, Finite Element Procedures in Engineering Analysis
  20. wainwright, 1976, Mechanical Design in Organisms
  21. 10.1037/0022-3514.37.11.2049 · doi:10.1037/0022-3514.37.11.2049 · Paper page
  22. 1993, final report to nsf of the planning workshop on facial expression understanding
  23. 10.1111/1467-8659.1130129 · DOI
  24. 10.1109/ICCV.1995.466916 · DOI · Paper page
  25. 10.1109/MNRAO.1994.346257 · DOI
  26. 10.1109/CA.1996.540489 · DOI
  27. mase, 1991, recognition of facial expressions for optical flow, IEICE Trans Special Issue on Computer Vision and Its Applications, 74
  28. 10.1109/34.216724 · DOI · Paper page
  29. 10.1037//0022-3514.58.3.487 · DOI · Paper page
  30. friedland, 1986, Control System Design An Introduction to State-Space Methods

Cited by

See all 911

Metadata

Authors
Essa, I. A., & Pentland, A. P.
Venue
IEEE Transactions on Pattern Analysis and Machine Intelligence
Published
1997-07
Volume
19
Issue
7
Pages
757-763
ISSN
0162-8828 (ISSN-L)
OpenAlex
W2160947254
Cited by
911
References
2
FWCI
23.78
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Coding, analysis, interpretation, and recognition of facial expressions. https://app.cochat.ai/papers/10.1109/34.598232
The paper
Essa, I. A., & Pentland, A. P. (1997). Coding, analysis, interpretation, and recognition of facial expressions. IEEE Transactions on Pattern Analysis and Machine Intelligence. https://doi.org/10.1109/34.598232

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.