Image and Vision Computing - Special issue: frequency increase for 1991
Recognizing Human Facial Expressions From Long Image Sequences Using Optical Flow
IEEE Transactions on Pattern Analysis and Machine Intelligence
Recognizing Facial Expressions in Image Sequences Using Local Parameterized Models of Image Motion
International Journal of Computer Vision
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Recognizing Action Units for Facial Expression Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Hyperpatches for 3D Model Acquisition and Tracking
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computer Vision: Three-Dimensional Data from Images
Computer Vision: Three-Dimensional Data from Images
Analysis and Synthesis of Facial Image Sequences Using Physical and Anatomical Models
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computing 3-D head orientation from a monocular image sequence
FG '96 Proceedings of the 2nd International Conference on Automatic Face and Gesture Recognition (FG '96)
A Probabilistic Framework for Rigid and Non-Rigid Appearance Based Tracking and Recognition
FG '00 Proceedings of the Fourth IEEE International Conference on Automatic Face and Gesture Recognition 2000
An Approach to Automatic Recognition of Spontaneous Facial Actions
FGR '02 Proceedings of the Fifth IEEE International Conference on Automatic Face and Gesture Recognition
Model-Based Face Tracking for View-Independent Facial Expression Recognition
FGR '02 Proceedings of the Fifth IEEE International Conference on Automatic Face and Gesture Recognition
FGR '02 Proceedings of the Fifth IEEE International Conference on Automatic Face and Gesture Recognition
Active and Dynamic Information Fusion for Facial Expression Understanding from Image Sequences
IEEE Transactions on Pattern Analysis and Machine Intelligence
Feature-Based Detection of Facial Landmarks from Neutral and Expressive Facial Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
AAM Derived Face Representations for Robust Facial Action Recognition
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Fully Automatic Facial Action Recognition in Spontaneous Behavior
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Facial Expression Classification using Gabor and Log-Gabor Filters
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Local versus Global Segmentation for Facial Expression Recognition
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Cascaded Classification of Gender and Facial Expression using Active Appearance Models
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Multi-Scale Primal Feature Based Facial Expression Modeling and Identification
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
Robust Real-Time Face Pose and Facial Expression Recovery
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1
Robust real-time 3D head pose estimation from range data
Pattern Recognition
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on gait analysis
Efficient model-based linear head motion recovery from movies
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
Synthesis and recognition of facial expressions in virtual 3D views
FGR' 04 Proceedings of the Sixth IEEE international conference on Automatic face and gesture recognition
Facial expression recognition using fisher weight maps
FGR' 04 Proceedings of the Sixth IEEE international conference on Automatic face and gesture recognition
Recognizing facial actions using Gabor wavelets with neutral face average difference
FGR' 04 Proceedings of the Sixth IEEE international conference on Automatic face and gesture recognition
Authentic facial expression analysis
FGR' 04 Proceedings of the Sixth IEEE international conference on Automatic face and gesture recognition
Recognizing expression variant faces from a single sample image per class
CVPR'03 Proceedings of the 2003 IEEE computer society conference on Computer vision and pattern recognition
CVPR'03 Proceedings of the 2003 IEEE computer society conference on Computer vision and pattern recognition
Discrete choice models for static facial expression recognition
ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
Facial expression recognition using constructive feedforward neural networks
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Learning from examples in the small sample case: face expression recognition
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Facial expression recognition from line-based caricatures
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Analysis of head and facial gestures using facial landmark trajectories
BioID_MultiComm'09 Proceedings of the 2009 joint COST 2101 and 2102 international conference on Biometric ID management and multimodal communication
Spatiotemporal-boosted DCT features for head and face gesture analysis
HBU'10 Proceedings of the First international conference on Human behavior understanding
Coupled Gaussian process regression for pose-invariant facial expression recognition
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part II
Towards a comprehensive 3D dynamic facial expression database
SSIP '09/MIV'09 Proceedings of the 9th WSEAS international conference on signal, speech and image processing, and 9th WSEAS international conference on Multimedia, internet & video technologies
Robust classification of face and head gestures in video
Image and Vision Computing
Spatiotemporal features for effective facial expression recognition
ECCV'10 Proceedings of the 11th European conference on Trends and Topics in Computer Vision - Volume Part I
Emotion recognition from geometric facial features using self-organizing map
Pattern Recognition
Facial expression recognition based on anatomy
Computer Vision and Image Understanding
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This study presents a facial expression recognition system which separates the non-rigid facial expression from the rigid head rotation and estimates the 3D rigid head rotation angle in real time. The extracted trajectories of the feature points contain both rigid head motion components and non-rigid facial expression motion components. A 3D virtual face model is used to obtain accurate estimation of the head rotation angle such that the non-rigid motion components can be precisely separated to enhance the facial expression recognition performance. The separation performance of the proposed system is further improved through the use of a restoration mechanism designed to recover feature points lost during large pan rotations. Having separated the rigid and non-rigid motions, hidden Markov models (HMMs) are employed to recognize a prescribed set of facial expressions defined in terms of facial action coding system (FACS) action units (AUs).