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Displaying 1-5 out of 5 total
Context-Sensitive Conditional Ordinal Random Fields for Facial Action Intensity Estimation
Found in: 2013 IEEE International Conference on Computer Vision Workshops (ICCVW)
By Ognjen Rudovic,Vladimir Pavlovic,Maja Pantic
Issue Date:December 2013
pp. 492-499
We address the problem of modeling intensity levels of facial actions in video sequences. The intensity sequences often exhibit a large variability due to the context factors, such as the person-specific facial expressiveness or changes in illumination. Ex...
Coupled Gaussian processes for pose-invariant facial expression recognition
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Ognjen Rudovic,Maja Pantic,Ioannis Patras
Issue Date:June 2013
pp. 1357-1369
We propose a method for head-pose invariant facial expression recognition that is based on a set of characteristic facial points. To achieve head-pose invariance, we propose the Coupled Scaled Gaussian Process Regression (CSGPR) model for head-pose normali...
Shape-constrained Gaussian process regression for facial-point-based head-pose normalization
Found in: Computer Vision, IEEE International Conference on
By Ognjen Rudovic,Maja Pantic
Issue Date:November 2011
pp. 1495-1502
Given the facial points extracted from an image of a face in an arbitrary pose, the goal of facial-point-based head-pose normalization is to obtain the corresponding facial points in a predefined pose (e.g., frontal). This involves inference of complex and...
Regression-Based Multi-view Facial Expression Recognition
Found in: Pattern Recognition, International Conference on
By Ognjen Rudovic, Ioannis Patras, Maja Pantic
Issue Date:August 2010
pp. 4121-4124
We present a regression-based scheme for multi-view facial expression recognition based on 2D geometric features. We address the problem by mapping facial points (e.g. mouth corners) from non-frontal to frontal view where further recognition of the express...
Bimodal log-linear regression for fusion of audio and visual features
Found in: Proceedings of the 21st ACM international conference on Multimedia (MM '13)
By Stavros Petridis, Maja Pantic, Ognjen Rudovic
Issue Date:October 2013
pp. 789-792
One of the most commonly used audiovisual fusion approaches is feature-level fusion where the audio and visual features are concatenated. Although this approach has been successfully used in several applications, it does not take into account interactions ...